{"id":204800,"date":"2025-07-15T08:35:58","date_gmt":"2025-07-15T08:35:58","guid":{"rendered":"https:\/\/www.bobex.be\/fr-be\/?post_type=content&#038;p=204800"},"modified":"2025-11-07T08:24:17","modified_gmt":"2025-11-07T08:24:17","slug":"isolation-du-plancher","status":"publish","type":"content","link":"https:\/\/www.bobex.be\/fr-be\/isolation-du-sol\/isolation-du-plancher\/","title":{"rendered":"Quel type d\u2019isolation choisir pour votre plancher ? Mat\u00e9riaux, prix et primes 2026"},"content":{"rendered":"\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_82_2 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Sommaire<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 eztoc-toggle-hide-by-default' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.bobex.be\/fr-be\/isolation-du-sol\/isolation-du-plancher\/#Quelles_sont_les_differentes_techniques_disolation_du_plancher\" >Quelles sont les diff\u00e9rentes techniques d&rsquo;isolation du plancher ?<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.bobex.be\/fr-be\/isolation-du-sol\/isolation-du-plancher\/#Lisolation_du_plancher_par_le_bas\" >L&rsquo;isolation du plancher par le bas<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.bobex.be\/fr-be\/isolation-du-sol\/isolation-du-plancher\/#Lisolation_du_plancher_par_le_dessus\" >L&rsquo;isolation du plancher par le dessus<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.bobex.be\/fr-be\/isolation-du-sol\/isolation-du-plancher\/#Lisolation_entre_les_structures_du_plancher\" >L&rsquo;isolation entre les structures du plancher<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.bobex.be\/fr-be\/isolation-du-sol\/isolation-du-plancher\/#Quels_materiaux_isolants_utiliser_pour_isoler_son_plancher\" >Quels mat\u00e9riaux isolants utiliser pour isoler son plancher ?<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.bobex.be\/fr-be\/isolation-du-sol\/isolation-du-plancher\/#Le_polyurethane_ideal_sous_un_plancher_ou_un_sol_en_beton\" >Le polyur\u00e9thane : id\u00e9al sous un plancher ou un sol en b\u00e9ton<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.bobex.be\/fr-be\/isolation-du-sol\/isolation-du-plancher\/#La_laine_de_roche_ideale_pour_isoler_le_sol_dun_grenier\" >La laine de roche : id\u00e9ale pour isoler le sol d&rsquo;un grenier<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.bobex.be\/fr-be\/isolation-du-sol\/isolation-du-plancher\/#Le_liege_expanse_naturel_et_durable_pour_le_plafond_de_la_cave\" >Le li\u00e8ge expans\u00e9 : naturel et durable pour le plafond de la cave<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/www.bobex.be\/fr-be\/isolation-du-sol\/isolation-du-plancher\/#Pourquoi_la_qualite_hygrothermique_est-elle_essentielle_pour_bien_isoler_un_plancher\" >Pourquoi la qualit\u00e9 hygrothermique est-elle essentielle pour bien isoler un plancher ?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/www.bobex.be\/fr-be\/isolation-du-sol\/isolation-du-plancher\/#Existe-t-il_des_primes_pour_lisolation_du_plancher_en_Belgique\" >Existe-t-il des primes pour l&rsquo;isolation du plancher en Belgique ?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/www.bobex.be\/fr-be\/isolation-du-sol\/isolation-du-plancher\/#Vous_souhaitez_isoler_le_sol_de_votre_habitation_Recevez_jusqua_5_devis_gratuits\" >Vous souhaitez isoler le sol de votre habitation ? Recevez jusqu&rsquo;\u00e0 5 devis gratuits<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/www.bobex.be\/fr-be\/isolation-du-sol\/isolation-du-plancher\/#Vos_questions_sur_lisolation_dune_habitation\" >Vos questions sur l&rsquo;isolation d&rsquo;une habitation&nbsp;<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/www.bobex.be\/fr-be\/isolation-du-sol\/isolation-du-plancher\/#Quel_isolant_choisir_pour_un_plancher_bois_a_letage\" >Quel isolant choisir pour un plancher bois \u00e0 l\u2019\u00e9tage ?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/www.bobex.be\/fr-be\/isolation-du-sol\/isolation-du-plancher\/#Quelle_est_la_meilleure_isolation_pour_le_sol_dune_maison_ancienne\" >Quelle est la meilleure isolation pour le sol d&rsquo;une maison ancienne ?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/www.bobex.be\/fr-be\/isolation-du-sol\/isolation-du-plancher\/#Faut-il_isoler_la_toiture_ou_le_plancher_du_grenier\" >Faut-il isoler\u00a0la\u00a0toiture ou\u00a0le plancher du\u00a0grenier\u00a0?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/www.bobex.be\/fr-be\/isolation-du-sol\/isolation-du-plancher\/#Peut-on_poser_un_chauffage_au_sol_sur_une_isolation_avant_chape\" >Peut-on poser un chauffage au sol sur une isolation avant chape ?<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Quelles_sont_les_differentes_techniques_disolation_du_plancher\"><\/span>Quelles sont les diff\u00e9rentes techniques d&rsquo;isolation du plancher ?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>On distingue <strong>trois grandes m\u00e9thodes<\/strong> pour isoler un plancher :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Par le dessous<\/strong>&nbsp;: le plancher inf\u00e9rieur est id\u00e9al si le sol surplombe une cave ou un vide sanitaire accessible. L\u2019isolant est fix\u00e9 au plafond de l\u2019espace inf\u00e9rieur, ce qui \u00e9vite de toucher au rev\u00eatement du sol.<\/li>\n\n\n\n<li><strong>Par le dessus<\/strong>&nbsp;: utilis\u00e9e quand le dessous n\u2019est pas accessible. Elle consiste \u00e0 poser un isolant sur le sol existant avant de le recouvrir d\u2019un nouveau rev\u00eatement. L&rsquo;<a href=\"https:\/\/www.bobex.be\/fr-be\/isolation-du-sol\/\" target=\"_blank\" rel=\"noreferrer noopener\">isolation du sol<\/a> par le dessus implique donc une l\u00e9g\u00e8re rehausse du plancher.<\/li>\n\n\n\n<li><strong>Entre les \u00e9l\u00e9ments porteurs<\/strong>&nbsp;: principalement dans les planchers en bois. L\u2019isolant est ins\u00e9r\u00e9 entre les solives, ce qui permet une isolation int\u00e9gr\u00e9e \u00e0 la structure.<\/li>\n<\/ul>\n\n\n\n<p>Le choix de la technique d\u00e9pend de <strong>l\u2019accessibilit\u00e9<\/strong>, du <strong>type<\/strong> <strong>de<\/strong> <strong>plancher<\/strong> (b\u00e9ton, bois\u2026) et du <strong>niveau<\/strong> <strong>d\u2019isolation<\/strong> thermique souhait\u00e9.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Lisolation_du_plancher_par_le_bas\"><\/span>L&rsquo;isolation du plancher par le bas<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"1200\" height=\"630\" src=\"https:\/\/www.bobex.be\/wp-uploads\/sites\/2\/Isolation-du-sol-en-laine.jpg\" alt=\"L'isolation du sol avec de la laine\" class=\"wp-image-222651\"\/><\/figure>\n\n\n\n<p>L\u2019isolation par le dessous consiste \u00e0 poser un isolant directement <strong>sous le plancher<\/strong>, g\u00e9n\u00e9ralement au plafond d\u2019une <strong>cave<\/strong>, d\u2019un <strong>garage<\/strong> ou d\u2019un <strong><a href=\"https:\/\/www.bobex.be\/fr-be\/isolation-du-sol\/vide-ventile\/\" target=\"_blank\" rel=\"noreferrer noopener\">vide sanitaire<\/a><\/strong>. Cette m\u00e9thode est id\u00e9ale lorsque ces espaces sont <strong>facilement<\/strong> <strong>accessibles<\/strong>, car elle ne n\u00e9cessite pas de travaux dans la pi\u00e8ce situ\u00e9e au-dessus. C&rsquo;est souvent la solution la plus simple et efficace dans les maisons avec un sous-sol ou un vide sanitaire accessible.<\/p>\n\n\n\n            <div style='\n            --title-color:green;\n            --content-color:black\n        ' class='bobex-pros-block--container-div'>\n                <div class='bobex-pros-block-main-div'>\n                    <div class='bobex-pros-block-plus-container'>\n                        <div class='bobex-pros-block-plus-area'>\n                            <div class='bobex-pros-plus'>\n                                <svg\n                                    style='color: var(--title-color); width: 20px; height: 20px;'\n                                    width='20px'\n                                    height='20px'\n                                    viewBox='0 0 24 24'\n                                    xmlns='http:\/\/www.w3.org\/2000\/svg'\n                                >\n                                    <path d='M12,5a1,1,0,0,1,1,1v5h5a1,1,0,0,1,0,2H13v5a1,1,0,0,1-2,0V13H6a1,1,0,0,1,0-2h5V6A1,1,0,0,1,12,5Z' fill='currentColor'\/>\n                                <\/svg>\n                            <\/div>\n                        <\/div>\n                    <\/div>\n                    <div class='bobex-pros-block-content-area'>\n                        <p class='bobex-block-pros-title'><strong>Avantages<\/strong>\u00a0<\/p>\n                        <p class='bobex-block-pros-content'><\/p>\n                        <div>\n<div class=\"wp-block-bobex-pros\">\n<ul class=\"wp-block-list\">\n<li>Aucun impact sur le rev\u00eatement de sol existant<\/li>\n\n\n\n<li>Travaux <strong>rapides<\/strong> et peu invasifs<\/li>\n\n\n\n<li>Pas de r\u00e9duction de hauteur sous plafond dans les pi\u00e8ces de vie<\/li>\n<\/ul>\n<\/div>\n<\/div>\n                    <\/div>\n                <\/div>\n            <\/div>\n        \n\n\n            <div style='\n            --title-color:red;\n            --content-color:black\n        ' class='bobex-cons-block--container-div'>\n                <div class='bobex-cons-block-main-div'>\n                    <div class='bobex-cons-block-plus-container'>\n                        <div class='bobex-cons-block-plus-area'>\n                            <div class='bobex-cons-plus'>\n                                <svg\n                                    style='color: var(--title-color); width: 20px; height: 20px;'\n                                    width='20px'\n                                    height='20px'\n                                    viewBox='0 0 24 24'\n                                    xmlns='http:\/\/www.w3.org\/2000\/svg'\n                                >\n                                    <path d='M19,13H5a1,1,0,0,1,0-2H19a1,1,0,0,1,0,2Z' fill='currentColor'\/>\n                                <\/svg>\n                            <\/div>\n                        <\/div>\n                    <\/div>\n                    <div class='bobex-cons-block-content-area'>\n                        <p class='bobex-block-cons-title'><strong>Limites<\/strong>\u00a0<\/p>\n                        <p class='bobex-block-cons-content'><\/p>\n                        <div>\n<div class=\"wp-block-bobex-cons\">\n<ul class=\"wp-block-list\">\n<li>N\u00e9cessite un <strong>acc\u00e8s suffisant<\/strong> sous le plancher<\/li>\n\n\n\n<li>Moins adapt\u00e9e si l\u2019espace est humide ou difficile d\u2019acc\u00e8s<\/li>\n\n\n\n<li>Hauteur disponible parfois trop faible pour poser un isolant performant<\/li>\n<\/ul>\n<\/div>\n<\/div>\n                    <\/div>\n                <\/div>\n            <\/div>\n        \n\n\n<p><strong>Mat\u00e9riaux couramment utilis\u00e9s<\/strong>&nbsp;:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Panneaux rigides en polyur\u00e9thane (tr\u00e8s isolants et peu \u00e9pais)<\/li>\n\n\n\n<li>Li\u00e8ge expans\u00e9 (naturel, r\u00e9sistant \u00e0 l\u2019humidit\u00e9)<\/li>\n\n\n\n<li>Laine min\u00e9rale (\u00e0 condition de la prot\u00e9ger de l\u2019humidit\u00e9)<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Lisolation_du_plancher_par_le_dessus\"><\/span>L&rsquo;isolation du plancher par le dessus<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>L\u2019isolation par le dessus consiste \u00e0 poser un isolant directement <strong>sur le plancher<\/strong> existant, avant d\u2019ajouter une chape ou un nouveau rev\u00eatement de sol. Cette m\u00e9thode est fr\u00e9quemment utilis\u00e9e lors de <strong>r\u00e9novations importantes<\/strong> ou lorsqu\u2019un <strong>nouveau sol<\/strong> doit \u00eatre install\u00e9. Elle est id\u00e9ale si vous pr\u00e9voyez d\u00e9j\u00e0 de refaire votre sol ou d&rsquo;engager des travaux de r\u00e9novation lourde.<\/p>\n\n\n\n            <div style='\n            --title-color:green;\n            --content-color:black\n        ' class='bobex-pros-block--container-div'>\n                <div class='bobex-pros-block-main-div'>\n                    <div class='bobex-pros-block-plus-container'>\n                        <div class='bobex-pros-block-plus-area'>\n                            <div class='bobex-pros-plus'>\n                                <svg\n                                    style='color: var(--title-color); width: 20px; height: 20px;'\n                                    width='20px'\n                                    height='20px'\n                                    viewBox='0 0 24 24'\n                                    xmlns='http:\/\/www.w3.org\/2000\/svg'\n                                >\n                                    <path d='M12,5a1,1,0,0,1,1,1v5h5a1,1,0,0,1,0,2H13v5a1,1,0,0,1-2,0V13H6a1,1,0,0,1,0-2h5V6A1,1,0,0,1,12,5Z' fill='currentColor'\/>\n                                <\/svg>\n                            <\/div>\n                        <\/div>\n                    <\/div>\n                    <div class='bobex-pros-block-content-area'>\n                        <p class='bobex-block-pros-title'><strong>Avantages<\/strong>\u00a0<\/p>\n                        <p class='bobex-block-pros-content'><\/p>\n                        <div>\n<div class=\"wp-block-bobex-pros\">\n<ul class=\"wp-block-list\">\n<li>Tr\u00e8s efficace pour am\u00e9liorer les performances thermiques<\/li>\n\n\n\n<li>Permet une isolation continue et <strong>homog\u00e8ne<\/strong><\/li>\n\n\n\n<li>Compatible avec un plancher chauffant<\/li>\n<\/ul>\n<\/div>\n<\/div>\n                    <\/div>\n                <\/div>\n            <\/div>\n        \n\n\n            <div style='\n            --title-color:red;\n            --content-color:black\n        ' class='bobex-cons-block--container-div'>\n                <div class='bobex-cons-block-main-div'>\n                    <div class='bobex-cons-block-plus-container'>\n                        <div class='bobex-cons-block-plus-area'>\n                            <div class='bobex-cons-plus'>\n                                <svg\n                                    style='color: var(--title-color); width: 20px; height: 20px;'\n                                    width='20px'\n                                    height='20px'\n                                    viewBox='0 0 24 24'\n                                    xmlns='http:\/\/www.w3.org\/2000\/svg'\n                                >\n                                    <path d='M19,13H5a1,1,0,0,1,0-2H19a1,1,0,0,1,0,2Z' fill='currentColor'\/>\n                                <\/svg>\n                            <\/div>\n                        <\/div>\n                    <\/div>\n                    <div class='bobex-cons-block-content-area'>\n                        <p class='bobex-block-cons-title'><strong>Limites<\/strong>\u00a0<\/p>\n                        <p class='bobex-block-cons-content'><\/p>\n                        <div>\n<div class=\"wp-block-bobex-cons\">\n<ul class=\"wp-block-list\">\n<li>R\u00e9hausse du sol, pouvant poser un probl\u00e8me pour les seuils, portes ou escaliers<\/li>\n\n\n\n<li>Travaux plus lourds, souvent impossibles \u00e0 r\u00e9aliser pi\u00e8ce par pi\u00e8ce<\/li>\n<\/ul>\n<\/div>\n<\/div>\n                    <\/div>\n                <\/div>\n            <\/div>\n        \n\n\n<p><strong>Isolants adapt\u00e9s<\/strong>&nbsp;:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Panneaux rigides en polyur\u00e9thane (PUR) pour une isolation fine et performante<\/li>\n\n\n\n<li>Panneaux de laine min\u00e9rale ou v\u00e9g\u00e9tale, selon les besoins acoustiques ou \u00e9cologiques<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Lisolation_entre_les_structures_du_plancher\"><\/span>L&rsquo;isolation entre les structures du plancher <span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Cette technique s\u2019applique principalement aux planchers en <strong>bois<\/strong>, notamment entre deux \u00e9tages. L\u2019isolant est ins\u00e9r\u00e9 entre les \u00e9l\u00e9ments porteurs du plancher, comme les <strong>lambourdes<\/strong> ou les <strong>solives<\/strong>, sans modifier l\u2019apparence du sol ou du plafond. C\u2019est une solution efficace pour isoler un \u00e9tage sans trop de travaux visibles, tout en <strong>am\u00e9liorant<\/strong> le <strong>confort<\/strong> thermique et acoustique de votre maison ou appartement.<\/p>\n\n\n\n            <div style='\n            --title-color:green;\n            --content-color:black\n        ' class='bobex-pros-block--container-div'>\n                <div class='bobex-pros-block-main-div'>\n                    <div class='bobex-pros-block-plus-container'>\n                        <div class='bobex-pros-block-plus-area'>\n                            <div class='bobex-pros-plus'>\n                                <svg\n                                    style='color: var(--title-color); width: 20px; height: 20px;'\n                                    width='20px'\n                                    height='20px'\n                                    viewBox='0 0 24 24'\n                                    xmlns='http:\/\/www.w3.org\/2000\/svg'\n                                >\n                                    <path d='M12,5a1,1,0,0,1,1,1v5h5a1,1,0,0,1,0,2H13v5a1,1,0,0,1-2,0V13H6a1,1,0,0,1,0-2h5V6A1,1,0,0,1,12,5Z' fill='currentColor'\/>\n                                <\/svg>\n                            <\/div>\n                        <\/div>\n                    <\/div>\n                    <div class='bobex-pros-block-content-area'>\n                        <p class='bobex-block-pros-title'><strong>Avantages<\/strong>\u00a0<\/p>\n                        <p class='bobex-block-pros-content'><\/p>\n                        <div>\n<div class=\"wp-block-bobex-pros\">\n<ul class=\"wp-block-list\">\n<li>Isolation discr\u00e8te, int\u00e9gr\u00e9e \u00e0 la structure<\/li>\n\n\n\n<li>Bonnes performances thermiques et acoustiques<\/li>\n\n\n\n<li>Convient en r\u00e9novation comme en construction<\/li>\n<\/ul>\n<\/div>\n<\/div>\n                    <\/div>\n                <\/div>\n            <\/div>\n        \n\n\n<p><strong>Mat\u00e9riaux couramment utilis\u00e9s<\/strong>&nbsp;:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Ouate de cellulose (\u00e9cologique et efficace contre les vibrations sonores)<\/li>\n\n\n\n<li>Laine de roche (tr\u00e8s bonne isolation thermique et phonique)<\/li>\n\n\n\n<li>Laine de bois ou laine de verre, selon les besoins<\/li>\n<\/ul>\n\n\n\n                <div class='bobex-cta-block' style='\n            --button-bg-color: #e13c0e;\n            --button-text-color: #ffffff;\n            --banner-bg-color: #aad4e6;\n            --arrow-main-bg-color: #aad4e6;\n            --arrow-secondary-bg-color: #e5f2f7;\n            --banner-title-color: #10375e;\n            --arrow-title-color: #10375e;\n            --banner-text-color: #545454;\n            --arrow-text-color: #545454;         \n            --invert-range: 0deg;\n        '>\n                    <div class='cta-banner'>\n                        <div class='h3'>Besoin d&rsquo;isoler votre plancher ?<\/div>\n                        <div class='text-color'>Contactez des sp\u00e9cialistes en isolation de sol et recevez jusqu\u2019\u00e0 5 devis sans frais.<\/div>\n                        <span>\n                            <img src='https:\/\/www.bobex.be\/wp-uploads\/sites\/2\/arrow-cta-box.png' alt='arrow' class='img-color'\/>\n                            <a class='cta-button-rounded' href=\"#ppp\">Demander votre devis gratuit <\/a>\n                        <\/span>   \n                    <\/div>\n                <\/div>\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Quels_materiaux_isolants_utiliser_pour_isoler_son_plancher\"><\/span>Quels mat\u00e9riaux isolants utiliser pour isoler son plancher ?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"1200\" height=\"630\" src=\"https:\/\/www.bobex.be\/wp-uploads\/sites\/2\/Isolation-sol-par-insufflation.jpg\" alt=\"Insufflation d'un isolant en laine\" class=\"wp-image-222654\"\/><\/figure>\n\n\n\n<p>Le choix de l\u2019isolant d\u00e9pend de plusieurs crit\u00e8res :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>La performance thermique<\/strong>&nbsp;recherch\u00e9e (valeur lambda et \u00e9paisseur)<\/li>\n\n\n\n<li><strong>La r\u00e9sistance \u00e0 l\u2019humidit\u00e9<\/strong>, surtout en cave ou vide sanitaire<\/li>\n\n\n\n<li><strong>L\u2019\u00e9paisseur disponible<\/strong>, notamment en isolation par le dessus<\/li>\n\n\n\n<li><strong>Le type de support<\/strong>, b\u00e9ton ou bois, qui conditionne la pose et la compatibilit\u00e9 du mat\u00e9riau<\/li>\n<\/ul>\n\n\n\n<p>Voici les principaux isolants utilis\u00e9s selon les situations :<\/p>\n\n\n\n<div class=\"wp-block-bobex-vertical-steps bobex-vertical-step-main-wrapper\" style=\"background-color:#e5f2f7\">\n                <div style=\"\n            --title-color:#10375e;\n            --content-color:#5c5c5c\n        \" class=\"bobex-vertical-steps-block--container-div\">\n                    <div class=\"bobex-vertical-steps-block-main-div\">\n                        <div class=\"bobex-vertical-steps-block-number-container\">\n                            <div class=\"bobex-vertical-steps-block-number-area \">\n                                <div class=\"bobex-vertical-steps-number\">1<\/div>\n                            <\/div>\n                        <\/div>\n                        <div class=\"bobex-vertical-steps-block-content-area\">\n                            <p class=\"bobex-block-vertical-step-title\">Polyur\u00e9thane (PUR)<\/p>\n                            <p class=\"bobex-block-vertical-step-content\"><\/p>\n                            <div>\n<div class=\"wp-block-bobex-vertical-step\">\n<p>Tr\u00e8s <strong>performant<\/strong> thermiquement, il est id\u00e9al lorsque l\u2019on dispose de <strong>peu d\u2019\u00e9paisseur<\/strong>, particuli\u00e8rement en isolation par le <strong>dessus<\/strong>. R\u00e9sistant \u00e0 l\u2019humidit\u00e9, il convient aussi en sous-face de plancher b\u00e9ton.<\/p>\n<\/div>\n<\/div>\n                        <\/div>\n                    <\/div>\n                <\/div>\n                \n\n\n                <div style=\"\n            --title-color:#10375e;\n            --content-color:#5c5c5c\n        \" class=\"bobex-vertical-steps-block--container-div\">\n                    <div class=\"bobex-vertical-steps-block-main-div\">\n                        <div class=\"bobex-vertical-steps-block-number-container\">\n                            <div class=\"bobex-vertical-steps-block-number-area \">\n                                <div class=\"bobex-vertical-steps-number\">2<\/div>\n                            <\/div>\n                        <\/div>\n                        <div class=\"bobex-vertical-steps-block-content-area\">\n                            <p class=\"bobex-block-vertical-step-title\">Laine de roche<\/p>\n                            <p class=\"bobex-block-vertical-step-content\"><\/p>\n                            <div>\n<div class=\"wp-block-bobex-vertical-step\">\n<p>Excellente isolation <strong>thermique<\/strong> et <strong>acoustique<\/strong>, adapt\u00e9e aux planchers <strong>bois<\/strong> et aux <strong>\u00e9tages<\/strong>. Bonne tenue au feu et r\u00e9sistance \u00e0 l\u2019humidit\u00e9 mod\u00e9r\u00e9e.<\/p>\n<\/div>\n<\/div>\n                        <\/div>\n                    <\/div>\n                <\/div>\n                \n\n\n                <div style=\"\n            --title-color:#10375e;\n            --content-color:#5c5c5c\n        \" class=\"bobex-vertical-steps-block--container-div\">\n                    <div class=\"bobex-vertical-steps-block-main-div\">\n                        <div class=\"bobex-vertical-steps-block-number-container\">\n                            <div class=\"bobex-vertical-steps-block-number-area \">\n                                <div class=\"bobex-vertical-steps-number\">3<\/div>\n                            <\/div>\n                        <\/div>\n                        <div class=\"bobex-vertical-steps-block-content-area\">\n                            <p class=\"bobex-block-vertical-step-title\">Ouate de cellulose<\/p>\n                            <p class=\"bobex-block-vertical-step-content\"><\/p>\n                            <div>\n<div class=\"wp-block-bobex-vertical-step\">\n<p>Isolant \u00e9cologique et performant, souvent utilis\u00e9 entre <strong>solives,<\/strong> dans les planchers <strong>bois<\/strong>. Tr\u00e8s bon d\u00e9phasage thermique et <a href=\"https:\/\/www.bobex.be\/fr-be\/isolation-du-sol\/isolation-acoustique\/\" target=\"_blank\" rel=\"noreferrer noopener\">isolation acoustique<\/a>.<\/p>\n<\/div>\n<\/div>\n                        <\/div>\n                    <\/div>\n                <\/div>\n                \n\n\n                <div style=\"\n            --title-color:#10375e;\n            --content-color:#5c5c5c\n        \" class=\"bobex-vertical-steps-block--container-div\">\n                    <div class=\"bobex-vertical-steps-block-main-div\">\n                        <div class=\"bobex-vertical-steps-block-number-container\">\n                            <div class=\"bobex-vertical-steps-block-number-area \">\n                                <div class=\"bobex-vertical-steps-number\">4<\/div>\n                            <\/div>\n                        <\/div>\n                        <div class=\"bobex-vertical-steps-block-content-area\">\n                            <p class=\"bobex-block-vertical-step-title\">Li\u00e8ge expans\u00e9<\/p>\n                            <p class=\"bobex-block-vertical-step-content\"><\/p>\n                            <div>\n<div class=\"wp-block-bobex-vertical-step\">\n<p><strong>Naturel<\/strong> et r\u00e9sistant \u00e0 l\u2019humidit\u00e9. Il convient bien \u00e0 l\u2019isolation par le dessous dans des environnements humides.<\/p>\n<\/div>\n<\/div>\n                        <\/div>\n                    <\/div>\n                <\/div>\n                \n\n\n                <div style=\"\n            --title-color:#10375e;\n            --content-color:#5c5c5c\n        \" class=\"bobex-vertical-steps-block--container-div\">\n                    <div class=\"bobex-vertical-steps-block-main-div\">\n                        <div class=\"bobex-vertical-steps-block-number-container\">\n                            <div class=\"bobex-vertical-steps-block-number-area \">\n                                <div class=\"bobex-vertical-steps-number\">5<\/div>\n                            <\/div>\n                        <\/div>\n                        <div class=\"bobex-vertical-steps-block-content-area\">\n                            <p class=\"bobex-block-vertical-step-title\">Laine de verre<\/p>\n                            <p class=\"bobex-block-vertical-step-content\"><\/p>\n                            <div>\n<div class=\"wp-block-bobex-vertical-step\">\n<p><strong>\u00c9conomique<\/strong> et<strong> facile \u00e0 poser,<\/strong> elle propose une bonne performance thermique. Utilisable en panneaux ou en rouleaux, principalement entre solives ou en sous-face.<\/p>\n<\/div>\n<\/div>\n                        <\/div>\n                    <\/div>\n                <\/div>\n                <\/div>\n\n                    <script type=\"application\/ld+json\">\n                        {\"@context\":\"https:\\\/\\\/schema.org\",\"@type\":\"Itemlist\",\"itemListElement\":[\"Polyur\\u00e9thane (PUR)\",\"Laine de roche\",\"Ouate de cellulose\",\"Li\\u00e8ge expans\\u00e9\",\"Laine de verre\"],\"itemListOrder\":\"Ascending\",\"name\":\"Vertical steps: Quel type d\\u2019isolation choisir pour votre plancher ? Mat\\u00e9riaux, prix et primes 2026\"}\n                    <\/script>\n                \n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Le_polyurethane_ideal_sous_un_plancher_ou_un_sol_en_beton\"><\/span>Le polyur\u00e9thane : id\u00e9al sous un plancher ou un sol en b\u00e9ton<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Le&nbsp;<strong>polyur\u00e9thane (PUR)<\/strong>&nbsp;est l\u2019un des isolants les plus performants sur le plan thermique, avec une&nbsp;<strong>faible \u00e9paisseur n\u00e9cessaire<\/strong>&nbsp;pour atteindre une bonne r\u00e9sistance thermique. C\u2019est donc un excellent choix pour l\u2019<a href=\"https:\/\/www.bobex.be\/fr-be\/isolation-du-sol\/sous-chape\/\" target=\"_blank\" rel=\"noreferrer noopener\">isolation sous dalle ou chape<\/a> en b\u00e9ton, surtout lorsque l\u2019espace disponible est limit\u00e9. La pose est relativement simple, mais n\u00e9cessite un support propre, sec et stable. Une&nbsp;<strong>barri\u00e8re contre l\u2019humidit\u00e9<\/strong>&nbsp;peut \u00eatre recommand\u00e9e selon les cas. Il se pr\u00e9sente sous deux formes principales :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Panneaux rigides<\/strong> : \u00e0 poser directement sur la dalle ou sous le plancher.<\/li>\n\n\n\n<li><strong>Mousse projet\u00e9e<\/strong>, qui \u00e9pouse parfaitement les irr\u00e9gularit\u00e9s du support, id\u00e9ale pour les zones difficiles d\u2019acc\u00e8s<\/li>\n<\/ul>\n\n\n\n            <div class=\"bobex-lightblock-maindiv\" style=\"\n            --content-color:#5c5c5c;\n        \">\n                <div class=\"bobex-tip-light-block__icon-area\">\n                    <div class=\"bobex-tip-light-icon-container\">\n                        <img decoding=\"async\" src=\"https:\/\/www.bobex.be\/fr-be\/wp-content\/plugins\/bobex-blocks\/img\/advice.png \" alt=\"advice-icon\" class=\"bobex-tip-light-block__tipsBlueLogo\"\/>\n                    <\/div>\n                <\/div>\n                <div class=\"bobex-tip-light-block__content-area\">\n                    <p class=\"bobex-block-tips-content\"><\/p>\n                    <div>\n<div class=\"wp-block-bobex-advice-light\">\n<p>Le polyur\u00e9thane n\u2019est pas biosourc\u00e9 et sa fabrication est plus <strong>\u00e9nergivore<\/strong> que celle d\u2019isolants naturels. Il reste n\u00e9anmoins tr\u00e8s appr\u00e9ci\u00e9 pour ses performances et son <strong>faible<\/strong> <strong>encombrement<\/strong>, en neuf comme en r\u00e9novation.<\/p>\n<\/div>\n<\/div>\n                <\/div>\n            <\/div>\n        \n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"La_laine_de_roche_ideale_pour_isoler_le_sol_dun_grenier\"><\/span>La laine de roche : id\u00e9ale pour isoler le sol d&rsquo;un grenier<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>La\u00a0<strong>laine de roche<\/strong>\u00a0est une solution efficace pour isoler le sol d\u2019un grenier, notamment lorsqu\u2019il s\u2019agit d\u2019un\u00a0<strong>grenier non am\u00e9nag\u00e9<\/strong>\u00a0ou d\u2019un\u00a0<strong>plancher en bois<\/strong>. Elle offre de bonnes performances\u00a0<strong>thermiques<\/strong>\u00a0et\u00a0<strong>acoustiques<\/strong>, tout en \u00e9tant ignifuge et relativement simple \u00e0 poser.<\/p>\n\n\n\n<p>De plus, elle se pr\u00e9sente g\u00e9n\u00e9ralement en&nbsp;<strong>rouleaux ou panneaux semi-rigides<\/strong>, \u00e0 d\u00e9rouler directement sur le plancher. Pour conserver toutes ses propri\u00e9t\u00e9s isolantes, il est essentiel de&nbsp;<strong>ne pas la comprimer<\/strong>&nbsp;lors de la pose : l\u2019air contenu dans la fibre joue un r\u00f4le cl\u00e9 dans son efficacit\u00e9. La laine de roche constitue donc une option int\u00e9ressante pour les greniers utilis\u00e9s comme espace de stockage ou laiss\u00e9s non chauff\u00e9s, tout en limitant les pertes de chaleur vers le bas.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Le_liege_expanse_naturel_et_durable_pour_le_plafond_de_la_cave\"><\/span>Le li\u00e8ge expans\u00e9 : naturel et durable pour le plafond de la cave<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Le&nbsp;<strong>li\u00e8ge expans\u00e9<\/strong>&nbsp;est un&nbsp;<strong>isolant naturel<\/strong>&nbsp;efficace contre le froid, durable et r\u00e9sistant \u00e0 l\u2019humidit\u00e9. Id\u00e9al pour une pose en&nbsp;<strong>sous-face<\/strong>, notamment au plafond d\u2019une cave ou d\u2019un vide sanitaire, c&rsquo;est une solution id\u00e9ale qui convient parfaitement aux&nbsp;<strong>logements anciens ou humides<\/strong>.<br>\u00c9cologique et imputrescible, il propose une isolation fiable et saine dans le temps.<\/p>\n\n\n<div class='bobex-cta-block' style='\n            --button-bg-color: #e13c0e;\n            --button-text-color: #ffffff;\n            --banner-bg-color: #aad4e6;\n            --arrow-main-bg-color: #aad4e6;\n            --arrow-secondary-bg-color: #e5f2f7;\n            --banner-title-color: #10375e;\n            --arrow-title-color: #10375e;\n            --banner-text-color: #545454;\n            --arrow-text-color: #545454;         \n            --invert-range: 0deg;\n        '><a class='cta-button-rounded' href='#ppp'>Faites appel \u00e0 un expert pour l&rsquo;isolation de votre sol<\/a><\/div>\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Pourquoi_la_qualite_hygrothermique_est-elle_essentielle_pour_bien_isoler_un_plancher\"><\/span>Pourquoi la qualit\u00e9 hygrothermique est-elle essentielle pour bien isoler un plancher ?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"1200\" height=\"630\" src=\"https:\/\/www.bobex.be\/wp-uploads\/sites\/2\/Rouleau-isolant-en-laine.jpg\" alt=\"Rouleau d'isolant en laine avec des outils\" class=\"wp-image-222657\"\/><\/figure>\n\n\n\n<p>La&nbsp;<strong>qualit\u00e9 hygrothermique<\/strong>&nbsp;d\u00e9signe la capacit\u00e9 d\u2019un isolant \u00e0&nbsp;<strong>g\u00e9rer \u00e0 la fois la chaleur et l\u2019humidit\u00e9<\/strong>. C\u2019est un crit\u00e8re essentiel pour garantir une isolation efficace et durable, surtout dans des zones sensibles comme les&nbsp;<strong>planchers en bois<\/strong>, les&nbsp;<strong>caves<\/strong>&nbsp;ou les&nbsp;<strong>logements anciens<\/strong>.<\/p>\n\n\n\n<p>Un isolant mal adapt\u00e9 \u00e0 l\u2019humidit\u00e9 peut perdre ses propri\u00e9t\u00e9s thermiques, se d\u00e9t\u00e9riorer ou favoriser l\u2019apparition de&nbsp;<strong>moisissures<\/strong>. D\u2019o\u00f9 l\u2019importance de choisir un mat\u00e9riau&nbsp;<strong>respirant<\/strong>&nbsp;(comme la ouate de cellulose ou la laine de bois) ou&nbsp;<strong>r\u00e9sistant \u00e0 l\u2019humidit\u00e9<\/strong>&nbsp;(comme le li\u00e8ge expans\u00e9 ou le polyur\u00e9thane) selon les conditions du b\u00e2timent.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Existe-t-il_des_primes_pour_lisolation_du_plancher_en_Belgique\"><\/span>Existe-t-il des primes pour l&rsquo;isolation du plancher en Belgique ?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Plusieurs aides r\u00e9gionales existent en Belgique pour l\u2019isolation du plancher, avec des conditions et montants qui varient selon que vous r\u00e9sidiez en&nbsp;<strong>Wallonie<\/strong>, \u00e0 Bruxelles ou en Flandre. Voici un aper\u00e7u des principales primes disponibles selon votre r\u00e9gion<\/p>\n\n\n\n            <div style=\"\n            --bg-color: #e5f2f7;\n            --title-color: #10375e;\n            --content-color:#5c5c5c\n        \" class=\"bobex-block-steps-main-div\">\n                <div class=\"bobex-block-steps-main-container\">\n                    <div class=\"bobex-block-steps-container\">\n                        <div class=\"bobex-block-steps-number-container\">\n                            <img decoding=\"async\" src=\"https:\/\/www.bobex.be\/fr-be\/wp-content\/plugins\/bobex-blocks\/img\/step1.png\" alt=\"step 1.png\"\/>\n                        <\/div>\n                        <div class=\"bobex-steps-block__content-area\">\n                            <p class=\"bobex-block-steps-title\">\ud83d\udccd<strong>Wallonie<\/strong><\/p>\n                            <p style=\"color: #5c5c5c \" class=\"bobex-block-steps-content\">\u00c0 partir du<strong> 14\u00a0f\u00e9vrier 2025<\/strong>, de nouvelles\u00a0<strong>Primes Habitation (r\u00e9gime 2025\u20112026)<\/strong>\u00a0couvrent l\u2019isolation thermique des sols\u00a0:<br><br>Jusqu&rsquo;\u00e0 6\u00a0\u20ac<strong>\/m\u00b2<\/strong>\u00a0pour des isolants classiques, 8\u00a0\u20ac<strong>\/m\u00b2<\/strong>\u00a0si biosourc\u00e9, avec un niveau de\u00a0<strong>r\u00e9sistance thermique R \u2265 3,5\u00a0m\u00b2. K\/<\/strong>W<strong> et 2\u00a0\u20ac\/m\u00b2 pour remplacer les finitions de planchers en cas d&rsquo;isolation par le haut.<\/strong><br><br>Pour b\u00e9n\u00e9ficier de ces primes, il faut : un logement existant, un isolant conforme aux crit\u00e8res techniques, des travaux recommand\u00e9s (souvent apr\u00e8s audit) et r\u00e9alis\u00e9s par un professionnel agr\u00e9\u00e9.<\/p>\n                        <\/div>\n                    <\/div>\n                    <div class=\"bobex-block-steps-container\">\n                        <div class=\"bobex-block-steps-number-container\">\n                            <img decoding=\"async\" src=\"https:\/\/www.bobex.be\/fr-be\/wp-content\/plugins\/bobex-blocks\/img\/step2.png\" alt=\"step 2.png\"\/>\n                        <\/div>\n                        <div class=\"bobex-steps-block__content-area\">\n                            <p style=\"color: #10375e \" class=\"bobex-block-steps-title\">\ud83d\udccd<strong>Flandre<\/strong><\/p>\n                            <p style=\"color: #5c5c5c \" class=\"bobex-block-steps-content\">Depuis le\u00a0<strong>1\u1d49\u02b3\u00a0juillet 2025<\/strong>, la Flandre propose des aides financi\u00e8res pour l\u2019isolation du sol via le programme\u00a0<strong>Mijn VerbouwPremie<\/strong>. Le montant varie selon la\u00a0<strong>cat\u00e9gorie de revenus<\/strong>\u00a0et le co\u00fbt des travaux. Voici un aper\u00e7u des montants accord\u00e9s :<br><br><strong>Cat.\u00a04\u00a0: <\/strong>jusqu&rsquo;\u00e0 50\u00a0% de la facture (hors TVA), max\u00a01\u00a0500\u00a0\u20ac. Facture entre<strong> 1\u00a0000\u00a0\u20ac et 3\u00a0000\u00a0\u20ac<\/strong>.<br><br><strong>Cat.<\/strong> <strong>3<\/strong> : jusqu&rsquo;\u00e0\u00a0<strong>35\u202f%<\/strong>, max\u00a0<strong>1\u202f050\u202f\u20ac<\/strong>. Facture entre\u00a0<strong>1\u202f000 \u20ac et 3\u202f000 \u20ac<\/strong>.<br><br><strong>Cat. 2 : <\/strong>9\u00a0\u20ac<strong>\/m\u00b2<\/strong>, max\u00a075\u00a0m\u00b2, soit 675\u00a0\u20ac, sans d\u00e9passer 25\u00a0% du montant\u00a0HT. Facture min.<strong>\u00a01\u00a0000\u00a0\u20ac<\/strong>.<br><br><strong>Cat. <\/strong>1 : 6\u00a0\u20ac<strong>\/m\u00b2<\/strong>, max\u00a0450\u00a0\u20ac, limit\u00e9 \u00e0 75\u00a0m\u00b2 et 20\u00a0% du montant\u00a0HT. Facture min.<strong>1\u202f000\u202f\u20ac<\/strong>.<\/p>\n                        <\/div>\n                    <\/div>\n                    <div class=\"bobex-block-steps-container\">\n                        <div class=\"bobex-block-steps-number-container\">\n                            <img decoding=\"async\" src=\"https:\/\/www.bobex.be\/fr-be\/wp-content\/plugins\/bobex-blocks\/img\/step3.png\" alt=\"step 3.png\"\/>\n                        <\/div>\n                        <div class=\"bobex-steps-block__content-area\">\n                            <p style=\"color: #10375e \" class=\"bobex-block-steps-title\">\ud83d\udccdBruxelles<\/p>\n                            <p style=\"color: #5c5c5c \" class=\"bobex-block-steps-content\">Les primes Renolution pour 2025 \u00e0 Bruxelles ne sont <strong>pas encore connues<\/strong>, car la R\u00e9gion attend la formation d\u2019un nouveau gouvernement avant de d\u00e9cider des montants et des conditions. <br><br>En cons\u00e9quence, <strong>aucune demande ne peut \u00eatre introduite<\/strong> pour des travaux dont les factures datent de 2025.<\/p>\n                        <\/div>\n                    <\/div>\n                <\/div>\n                <div>\n<div class=\"wp-block-bobex-steps\"><\/div>\n<\/div>\n            <\/div>\n        \n                    <script type=\"application\/ld+json\">\n                        {\"@context\":\"https:\\\/\\\/schema.org\",\"@type\":\"Itemlist\",\"itemListElement\":[\"\\ud83d\\udccd<strong>Wallonie<\\\/strong>\",\"\\ud83d\\udccd<strong>Flandre<\\\/strong>\",\"\\ud83d\\udccdBruxelles\"],\"itemListOrder\":\"Ascending\",\"name\":\"Steps: Quel type d\\u2019isolation choisir pour votre plancher ? Mat\\u00e9riaux, prix et primes 2026\"}\n                    <\/script>\n                \n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Vous_souhaitez_isoler_le_sol_de_votre_habitation_Recevez_jusqua_5_devis_gratuits\"><\/span>Vous souhaitez isoler le sol de votre habitation ? Recevez jusqu&rsquo;\u00e0 5 devis gratuits <span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Vous d\u00e9sirez isoler le sol de votre habitation ? Gr\u00e2ce \u00e0 notre&nbsp;<strong>formulaire Bobex<\/strong>, vous pouvez \u00eatre mis en contact avec des&nbsp;<strong>sp\u00e9cialistes de l\u2019isolation<\/strong>&nbsp;pr\u00e8s de chez vous et recevoir<strong> jusqu&rsquo;\u00e0 devis gratuits<\/strong>, sans engagement.<\/p>\n\n\n<div id=\"ppp\" class=\"bob-form-wrapper\" data-ajax_url=\"https:\/\/www.bobex.be\/fr-be\/wp-admin\/admin-ajax.php\" data-fa_a=\"\" data-fa_b=\"\"><div class=\"loader\" aria-hidden=\"true\"><\/div>    <div>\n        <div class=\"row mx-auto mb-2\" style=\"max-width: 900px;\">\n            <div class=\"col-md-4\"><i class=\"mr-1 fas fa-check\" style=\"color:green;\"><\/i>Devis gratuits et rapides<\/div>\n            <div class=\"col-md-4\"><i class=\"mr-1 fas fa-check\" style=\"color:green;\"><\/i>Sans engagement et obligation<\/div>\n            <div class=\"col-md-4\"><i class=\"mr-1 fas fa-check\" style=\"color:green;\"><\/i>Professionnels agr\u00e9\u00e9s<\/div>\n        <\/div>\n    <\/div><div id=\"form-69f24dc63a0f0\" class=\"bob-form-container\" style=\"background-color: white; font-family: Roboto, sans-serif !important; font-size: 16px !important; color: #545454; box-shadow: 0 2px 10px rgba(0,0,0,0.1); --font_title: Poppins; --font_size_title: 20px; --title_bg_color: #175da6; --copyright_color: #fde8e1; --box_upload_color: #e5f2f7; padding:unset;\" data-form-type=\"inline\" data-form-id=\"69f24dc63a0f0\"><style>#form-69f24dc63a0f0 .bob-form-inline-question.even {\n  background-color: #e5f2f7;\n}\n#form-69f24dc63a0f0 .single_multiple.multiple_button {\n  background-color: #e5f2f7 !important;\n}\n#form-69f24dc63a0f0 .bob-form-inline-question--hidden {\n  display: none;\n}<\/style><div class=\"form-questions\"><form id=\"bob-form\" class=\"bob-form bob-form-tag\" method=\"post\" action=\"https:\/\/www.bobex.be\/fr-be\/wp-admin\/admin-ajax.php?action=bobex-form-validation\">    <div class=\"form-title\">\n        Formulez votre demande\n        <div class=\"form-title-info-line\">\n            R\u00e9pondez \u00e0 quelques questions et entrez en contact avec des sp\u00e9cialistes fiables. Nous vous demandons vos coordonn\u00e9es afin de s\u00e9lectionner les professionnels actifs dans votre r\u00e9gion.\n        <\/div>\n    <\/div><div class=\"form-questions bob-form-inline-question\"><div class=\"row\"><div class=\"question col-md-4\"><label>1*. Quel type d&rsquo;isolation d\u00e9sirez-vous?<\/label><\/div><div class=\"answer col-md-8\"><div class=\"bob-form-radio d-flex\"><input type=\"radio\" class=\"inline-radio\" id=\"69f24dc63a0f0-input-0-1\" data-unique-id=\"69f24dc63a0f0\" name=\"XML_extra_radio\" value=\"1\"  required=\"required\"><label for=\"69f24dc63a0f0-input-0-1\">Isolation du plancher grenier<\/label><\/div><div class=\"bob-form-radio d-flex\"><input type=\"radio\" class=\"inline-radio\" id=\"69f24dc63a0f0-input-0-2\" data-unique-id=\"69f24dc63a0f0\" name=\"XML_extra_radio\" value=\"2\"  required=\"required\"><label for=\"69f24dc63a0f0-input-0-2\">Isolation des sols<\/label><\/div><div class=\"bob-form-radio d-flex\"><input type=\"radio\" class=\"inline-radio\" id=\"69f24dc63a0f0-input-0-3\" data-unique-id=\"69f24dc63a0f0\" name=\"XML_extra_radio\" value=\"3\"  required=\"required\"><label for=\"69f24dc63a0f0-input-0-3\">Isolation du vide ventil\u00e9<\/label><\/div><div class=\"bob-form-radio d-flex\"><input type=\"radio\" class=\"inline-radio\" id=\"69f24dc63a0f0-input-0-4\" data-unique-id=\"69f24dc63a0f0\" name=\"XML_extra_radio\" value=\"4\"  required=\"required\"><label for=\"69f24dc63a0f0-input-0-4\">Je ne sais pas, conseillez-moi<\/label><\/div><\/div><\/div><\/div><div class=\"form-questions bob-form-inline-question even\"><div class=\"row\"><div class=\"question col-md-4\"><label>2*. Quelle technique d&rsquo;isolation de sol d\u00e9sirez-vous?<\/label><\/div><div class=\"answer col-md-8\"><div class=\"bob-form-radio d-flex\"><input type=\"radio\" class=\"inline-radio\" id=\"69f24dc63a0f0-input-1-1\" data-unique-id=\"69f24dc63a0f0\" name=\"XML_extra_radio2\" value=\"1\"  required=\"required\"><label for=\"69f24dc63a0f0-input-1-1\">El\u00e9ments de plancher rev\u00eatus d&rsquo;isolation<\/label><\/div><div class=\"bob-form-radio d-flex\"><input type=\"radio\" class=\"inline-radio\" id=\"69f24dc63a0f0-input-1-2\" data-unique-id=\"69f24dc63a0f0\" name=\"XML_extra_radio2\" value=\"2\"  required=\"required\"><label for=\"69f24dc63a0f0-input-1-2\">Panneaux isolants<\/label><\/div><div class=\"bob-form-radio d-flex\"><input type=\"radio\" class=\"inline-radio\" id=\"69f24dc63a0f0-input-1-3\" data-unique-id=\"69f24dc63a0f0\" name=\"XML_extra_radio2\" value=\"3\"  required=\"required\"><label for=\"69f24dc63a0f0-input-1-3\">Mortier isolant<\/label><\/div><div class=\"bob-form-radio d-flex\"><input type=\"radio\" class=\"inline-radio\" id=\"69f24dc63a0f0-input-1-4\" data-unique-id=\"69f24dc63a0f0\" name=\"XML_extra_radio2\" value=\"4\"  required=\"required\"><label for=\"69f24dc63a0f0-input-1-4\">Mousse polyur\u00e9thane (PUR)<\/label><\/div><div class=\"bob-form-radio d-flex\"><input type=\"radio\" class=\"inline-radio\" id=\"69f24dc63a0f0-input-1-5\" data-unique-id=\"69f24dc63a0f0\" name=\"XML_extra_radio2\" value=\"5\"  required=\"required\"><label for=\"69f24dc63a0f0-input-1-5\">Autre \/ Je ne sais pas<\/label><\/div><\/div><\/div><\/div><div class=\"form-questions bob-form-inline-question\"><div class=\"row\"><div class=\"question col-md-4\"><label>3*. Quelle superficie devra \u00eatre isol\u00e9e (estimation)?<\/label><\/div><div class=\"answer col-md-8\"><div class=\"bob-form-radio d-flex\"><input type=\"radio\" class=\"inline-radio\" id=\"69f24dc63a0f0-input-2-1\" data-unique-id=\"69f24dc63a0f0\" name=\"XML_extra_radio3\" value=\"1\"  required=\"required\"><label for=\"69f24dc63a0f0-input-2-1\">Moins de 30 m2<\/label><\/div><div class=\"bob-form-radio d-flex\"><input type=\"radio\" class=\"inline-radio\" id=\"69f24dc63a0f0-input-2-2\" data-unique-id=\"69f24dc63a0f0\" name=\"XML_extra_radio3\" value=\"2\"  required=\"required\"><label for=\"69f24dc63a0f0-input-2-2\">Entre 30 et 100 m2<\/label><\/div><div class=\"bob-form-radio d-flex\"><input type=\"radio\" class=\"inline-radio\" id=\"69f24dc63a0f0-input-2-3\" data-unique-id=\"69f24dc63a0f0\" name=\"XML_extra_radio3\" value=\"3\"  required=\"required\"><label for=\"69f24dc63a0f0-input-2-3\">Entre 100 et 500 m2<\/label><\/div><div class=\"bob-form-radio d-flex\"><input type=\"radio\" class=\"inline-radio\" id=\"69f24dc63a0f0-input-2-4\" data-unique-id=\"69f24dc63a0f0\" name=\"XML_extra_radio3\" value=\"4\"  required=\"required\"><label for=\"69f24dc63a0f0-input-2-4\">Plus de 500 m2<\/label><\/div><\/div><\/div><\/div><div class=\"form-questions bob-form-inline-question even\"><div class=\"row\"><div class=\"question col-md-4\"><label>4*. Quand d\u00e9sirez-vous d\u00e9buter l&rsquo;installation de l&rsquo;isolation?<\/label><\/div><div class=\"answer col-md-8\"><div class=\"bob-form-radio d-flex\"><input type=\"radio\" class=\"inline-radio\" id=\"69f24dc63a0f0-input-3-1\" data-unique-id=\"69f24dc63a0f0\" name=\"XML_extra_radio4\" value=\"1\"  required=\"required\"><label for=\"69f24dc63a0f0-input-3-1\">Le plus rapidement possible, sous le mois<\/label><\/div><div class=\"bob-form-radio d-flex\"><input type=\"radio\" class=\"inline-radio\" id=\"69f24dc63a0f0-input-3-2\" data-unique-id=\"69f24dc63a0f0\" name=\"XML_extra_radio4\" value=\"2\"  required=\"required\"><label for=\"69f24dc63a0f0-input-3-2\">Entre 1 et 3 mois<\/label><\/div><div class=\"bob-form-radio d-flex\"><input type=\"radio\" class=\"inline-radio\" id=\"69f24dc63a0f0-input-3-3\" data-unique-id=\"69f24dc63a0f0\" name=\"XML_extra_radio4\" value=\"3\"  required=\"required\"><label for=\"69f24dc63a0f0-input-3-3\">Entre 4 et 6 mois<\/label><\/div><div class=\"bob-form-radio d-flex\"><input type=\"radio\" class=\"inline-radio\" id=\"69f24dc63a0f0-input-3-4\" data-unique-id=\"69f24dc63a0f0\" name=\"XML_extra_radio4\" value=\"4\"  required=\"required\"><label for=\"69f24dc63a0f0-input-3-4\">Entre 7 et 12 mois<\/label><\/div><\/div><\/div><\/div><div class=\"form-questions bob-form-inline-question\"><div class=\"d-flex flex-column\"><label class=\"question\" for=\"69f24dc63a0f0-input-4\">5. Description de votre projet<\/label><textarea class=\"bob-form-input\" name=\"XML_remarks\" id=\"69f24dc63a0f0-input-4\" data-unique-id=\"69f24dc63a0f0\"><\/textarea><\/div><\/div><div class=\"bob-inline-form bob-form-tag upload-box mb-3\">\n                    <div class=\"row\">\n                        <div class=\"col-md-12 mb-2 question\">Ajouter des photos ou des pi\u00e8ces jointes (en Option)<\/div>\n                        <div class=\"col-md-12\">\n                            <div class=\"box__input\" style=\"background-color: #e5f2f7;\"\n                                 ondrop=\"drop(event)\"\n                                 ondragover=\"allowDrop(event)\"\n                                 ondragleave=\"removeDropFx(event)\"\n                                >\n                                <input type=\"file\"\n                                       class=\"file__input\"\n                                       name=\"attachments[]\"\n                                       id=\"attachments\"\n                                       multiple=\"multiple\"\n                                       accept=\"image\/jpeg, image\/png, image\/gif, application\/pdf\"\n                                       data-multiple-caption=\"{count} files selected\">\n                                <div>\n                                    <label for=\"attachments\"><strong>S\u00e9lectionnez un fichier <\/strong>ou glissez-le ici<\/label>\n                                    <span class=\"box__button bobex-round-cta m-1 py-1\"\n                                          style=\"mix-blend-mode: luminosity\">\n                                        <i class=\"fas fa-cloud-upload-alt text-white\"><\/i>\n                                        T\u00e9l\u00e9charger\n                                    <\/span>\n                                <\/div>\n            \n                                <div class=\"row preview_wrapper m-0\"><\/div>\n                            <\/div>\n            \n                            <div class=\"box__uploading\">Uploading\u2026<\/div>\n                            <div class=\"box__success\">Done!<\/div>\n                            <div class=\"box__error\">Error! <span><\/span>.<\/div>\n                        <\/div>\n                    <\/div>\n                <\/div>    <div class=\"form-title\">\n        Vos donn\u00e9es\n    <\/div><div class=\"bob-form-contact-data\" style=\"padding: 20px\"><div class=\"row lead-info\"><div class=\"col-md-6 mb-3\">  <div class=\"form-group\">    <input value=\"\" type=\"text\" class=\"form-control\" id=\"firstName\" name=\"firstName\" placeholder=\"Pr\u00e9nom\" required>    <div class=\"valid-feedback\">Enchant\u00e9 !<\/div>    <div class=\"invalid-feedback\">Veuillez indiquer votre pr\u00e9nom<\/div>  <\/div><\/div><div class=\"col-md-6 mb-3\">  <div class=\"form-group\">    <input value=\"\" type=\"text\" class=\"form-control\" id=\"lastName\" name=\"lastName\" placeholder=\"Nom\" required>    <div class=\"valid-feedback\">Sympa<\/div>    <div class=\"invalid-feedback\">Veuillez indiquer votre nom de famille<\/div>  <\/div><\/div><div class=\"col-md-12 mb-3\">  <div class=\"form-group\">    <input value=\"\" type=\"email\" class=\"form-control\" id=\"email\" name=\"email\" placeholder=\"E-mail\" required style=\"max-width: unset;\">    <div class=\"valid-feedback\">C&rsquo;est tout bon<\/div>    <div class=\"invalid-feedback\">Veuillez indiquer une adresse e-mail valide<\/div>  <\/div><\/div><div class=\"col-md-12 mb-3\">  <div class=\"form-group\">    <input value=\"\" type=\"tel\" class=\"form-control\" id=\"phone\" name=\"phone\" placeholder=\"T\u00e9l\u00e9phone\" required style=\"max-width: unset;\">    <div class=\"valid-feedback\">Parfait<\/div>    <div class=\"invalid-feedback\">Veuillez indiquer un num\u00e9ro de t\u00e9l\u00e9phone valide<\/div>  <\/div><\/div><div class=\"col-md-12 mb-3\">  <div class=\"form-group\">    <input value=\"\" type=\"text\" class=\"form-control\" id=\"companyAddress\" name=\"companyAddress\" placeholder=\"Adresse\" required style=\"max-width: unset;\">    <div class=\"valid-feedback\">C&rsquo;est not\u00e9<\/div>    <div class=\"invalid-feedback\">Veuillez indiquer une adresse valide<\/div>  <\/div><\/div><div class=\"col-md-6 mb-3\">  <div class=\"form-group\">    <input value=\"\" type=\"text\" class=\"form-control\" id=\"companyPostalCode\" name=\"companyPostalCode\" placeholder=\"Code postal\" required>    <div class=\"valid-feedback\">Excellent !<\/div>    <div class=\"invalid-feedback\">Veuillez indiquer un code postal valide<\/div>  <\/div><\/div><div class=\"col-md-6 mb-3\">  <div class=\"form-group\">    <input value=\"\" type=\"text\" class=\"form-control\" id=\"companyCity\" name=\"companyCity\" placeholder=\"Ville\" required>    <div class=\"valid-feedback\">Bien jou\u00e9<\/div>    <div class=\"invalid-feedback\">Veuillez indiquer une ville valide<\/div>  <\/div><\/div><div class=\"d-flex mt-3\"><input name=\"promoOptin\" value=\"true\" id=\"promoOptin\" type=\"checkbox\" class=\"me-2\" style=\"width: unset\"><label for=\"promoOptin\">Je souhaite rester inform\u00e9 de ma demande et recevoir des conseils pratiques (fortement recommand\u00e9 !) <\/label><\/div><\/div><\/div><input type=\"hidden\" class=\"session_var\" name=\"newform\" value=\"true\"><input type=\"hidden\" class=\"session_var\" name=\"lead-validation-nonce\" value=\"24cd3332a7\"><input type=\"hidden\" class=\"session_var\" name=\"aff\" value=\"minisite\"><input type=\"hidden\" class=\"session_var\" name=\"utm_source\" value=\"https:\/\/www.bobex.be\/fr-be\/wp-json\/v2\/content\/204800\"><input type=\"hidden\" class=\"session_var\" name=\"bobx\" value=\"\"><input type=\"hidden\" class=\"session_var\" name=\"sessionType\" value=\"B2C\"><input type=\"hidden\" class=\"session_var\" name=\"utm_medium\" value=\"web\"><input type=\"hidden\" class=\"session_var\" name=\"utm_campaign\" value=\"search\"><input type=\"hidden\" class=\"session_var\" name=\"rem_source\" value=\"https:\/\/www.bobex.be\/fr-be\/isolation-du-sol\/isolation-du-plancher\/\"><input type=\"hidden\" class=\"session_var\" name=\"pixel_id\" value=\"-1\"><input type=\"hidden\" class=\"session_var\" name=\"tabo_id\" value=\"-1\"><input type=\"hidden\" class=\"session_var\" name=\"click_id\" value=\"-1\"><input type=\"hidden\" class=\"session_var\" name=\"gclid\" value=\"-1\"><input type=\"hidden\" class=\"session_var\" name=\"msclkid\" value=\"-1\"><input type=\"hidden\" class=\"session_var\" name=\"past_aff\" value=\"bobex\"><input type=\"hidden\" class=\"session_var\" name=\"redirectTo\" value=\"BE\"><input type=\"hidden\" class=\"session_var\" name=\"is_type_id\" value=\"true\"><input type=\"hidden\" class=\"session_var\" name=\"typeid\" value=\"30004\"><input type=\"hidden\" class=\"session_var\" name=\"companyType\" value=\"label.companytype.consumer\"><input type=\"hidden\" class=\"session_var\" name=\"input_names\" value=\"XML_extra_radio,XML_extra_radio2,XML_extra_radio3,XML_extra_radio4,XML_remarks\"><input type=\"hidden\" class=\"form_context\" value=\"BE\"><img decoding=\"async\" class=\"bobex-pixel\" src=\"\" alt=\"\" style=\"display:none\" \/>    <div class=\"bob-form-submit d-flex justify-content-center\">\n        <button type=\"submit\" class=\"form-submit\" style=\"background-color: #F1653A; color: white; border: none !important; border-radius: 5px !important; font-family: Roboto, sans-serif; font-size: 16px;\">\n            Demander un devis\n        <\/button>\n    <\/div>    <div class=\"bob-inline-form form-footer\" style=\"border-radius: 0 0 10px 10px\">\n        <div class=\"bob-form-privacy-text\">\n            <div style=\"float:left;\"><i class=\"fa fa-lock\"><\/i><\/div>\n            <div class=\"ms-2\">\n                <div style='padding-left: 15px;font-size: 0.8em !important;z-index: 10;'><b>Nous respectons votre vie priv\u00e9e<\/b><br> Conform\u00e9ment \u00e0 la loi du 8\/12\/1992 relative \u00e0 la protection de la vie priv\u00e9e, vous disposez d&rsquo;un droit d&rsquo;acc\u00e8s et de rectification \u00e0 vos donn\u00e9es. Pour en savoir plus, consultez notre <span class=\"link_ob\" data-link=\"aHR0cHM6Ly93d3cuYm9iZXguYmUvZnItYmUvcHJvdGVjdGlvbi1kZS1sYS12aWUtcHJpdmVlLw==\" target=\"_blank\">charte sur la vie priv\u00e9e<\/span>.<\/div>\n                \n            <\/div>\n        <\/div>\n    <\/div><\/form><\/div><div class=\"multiple_mini hidden\" data-lead_id=\"\"><p class=\"multiple-title\">Merci d&rsquo;avoir pris le temps de remplir ce formulaire<\/p><p>Nous vous contacterons d\u00e8s que possible pour vous orienter vers le meilleur sp\u00e9cialiste correspondant \u00e0 votre demande.<\/p><div class=\"multiple_wrapper\"><div class=\"loader\"><\/div><p class=\"multiple-title\">Vous cherchez d&rsquo;autres services ?<\/p><p class=\"multiple_text\">Vous souhaitez comparer d&rsquo;autres devis ou explorer d&rsquo;autres services ? Faites-le nous savoir et nous vous mettrons rapidement en relation<\/p><div class=\"multiple_container\"><div class=\"single_multiple multiple_button\" data-typeid=\"11364\"><i class=\"fa-3x cat icon-11364\"><\/i><span class=\"multiple_name\">Panneaux solaires<\/span><\/div><div class=\"single_multiple multiple_button\" data-typeid=\"11461\"><i class=\"fa-3x cat icon-11461\"><\/i><span class=\"multiple_name\">Traitement de l&rsquo;humidit\u00e9<\/span><\/div><div class=\"single_multiple multiple_button\" data-typeid=\"11452\"><i class=\"fa-3x fad fa-door-closed\"><\/i><span class=\"multiple_name\">Ch\u00e2ssis, portes et fen\u00eatres<\/span><\/div><div class=\"single_multiple multiple_button\" data-typeid=\"11997\"><i class=\"fa-3x cat icon-11997\"><\/i><span class=\"multiple_name\">Chemin\u00e9e<\/span><\/div><div class=\"single_multiple multiple_button\" data-typeid=\"11995\"><i class=\"fa-3x cat icon-11995\"><\/i><span class=\"multiple_name\">R\u00e9novation salle de bain<\/span><\/div><div class=\"single_multiple multiple_button\" data-typeid=\"11428\"><i class=\"fa-3x cat icon-11428\"><\/i><span class=\"multiple_name\">Pompe \u00e0 chaleur<\/span><\/div><\/div><\/div><\/div><\/div><\/div>\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Vos_questions_sur_lisolation_dune_habitation\"><\/span>Vos questions sur l&rsquo;isolation d&rsquo;une habitation&nbsp;<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Vous avez encore des questions sur l\u2019isolation du sol ? D\u00e9couvrez notre&nbsp;<strong>FAQ<\/strong>&nbsp;pour trouver rapidement des r\u00e9ponses claires aux interrogations les plus fr\u00e9quentes.<\/p>\n\n\n\n<div class=\"wp-block-bobex-frequently-asked-questions bobex-faq-main-wrapper\">\n            <div class=\"bobex-simple-question-answer-block\">\n                <div class=\"bobex-simple-question-answer-block__question\" style=\"background-color: #63b0d1!important; color: white!important;\">\n                    <h3 style=\"color: white!important; margin:unset; font-size:1.2rem;\" class=\"bobex-simple-question-answer-block__question__content\"><span class=\"ez-toc-section\" id=\"Quel_isolant_choisir_pour_un_plancher_bois_a_letage\"><\/span>Quel isolant choisir pour un plancher bois \u00e0 l\u2019\u00e9tage ?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n                    <div class=\"bobex-simple-question-answer-block__question__toggle\">+<\/div>\n                <\/div>\n                <div class=\"bobex-simple-question-answer-block__answer\" style=\"background-color: !important; color: black!important;\">\n                    <div class=\"bobex-simple-question-answer-block__answer__content\">La\u00a0<strong>laine de roche<\/strong>\u00a0ou la\u00a0<strong>ouate de cellulose<\/strong>\u00a0sont id\u00e9ales pour un plancher bois \u00e0 l\u2019\u00e9tage : elles offrent une bonne isolation thermique et acoustique, sans alourdir la structure.<\/div>\n                    <div>\n<div class=\"wp-block-bobex-simple-question-answer\"><\/div>\n<\/div>\n                <\/div>\n            <\/div>\n        \n\n\n            <div class=\"bobex-simple-question-answer-block\">\n                <div class=\"bobex-simple-question-answer-block__question\" style=\"background-color: #63b0d1!important; color: white!important;\">\n                    <h3 style=\"color: white!important; margin:unset; font-size:1.2rem;\" class=\"bobex-simple-question-answer-block__question__content\"><span class=\"ez-toc-section\" id=\"Quelle_est_la_meilleure_isolation_pour_le_sol_dune_maison_ancienne\"><\/span>Quelle est la meilleure isolation pour le sol d&rsquo;une maison ancienne ?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n                    <div class=\"bobex-simple-question-answer-block__question__toggle\">+<\/div>\n                <\/div>\n                <div class=\"bobex-simple-question-answer-block__answer\" style=\"background-color: !important; color: black!important;\">\n                    <div class=\"bobex-simple-question-answer-block__answer__content\">Le\u00a0<strong>li\u00e8ge expans\u00e9<\/strong>\u00a0ou la\u00a0<strong>mousse polyur\u00e9thane projet\u00e9e<\/strong>\u00a0sont souvent les meilleurs choix pour une maison ancienne : ils sont efficaces, r\u00e9sistants \u00e0 l\u2019humidit\u00e9 et adapt\u00e9s aux sols irr\u00e9guliers.<\/div>\n                    <div>\n<div class=\"wp-block-bobex-simple-question-answer\"><\/div>\n<\/div>\n                <\/div>\n            <\/div>\n        \n\n\n            <div class=\"bobex-simple-question-answer-block\">\n                <div class=\"bobex-simple-question-answer-block__question\" style=\"background-color: #63b0d1!important; color: white!important;\">\n                    <h3 style=\"color: white!important; margin:unset; font-size:1.2rem;\" class=\"bobex-simple-question-answer-block__question__content\"><span class=\"ez-toc-section\" id=\"Faut-il_isoler_la_toiture_ou_le_plancher_du_grenier\"><\/span><strong>Faut-il isoler<\/strong>\u00a0la\u00a0<strong>toiture ou<\/strong>\u00a0le plancher du\u00a0<strong>grenier<\/strong>\u00a0?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n                    <div class=\"bobex-simple-question-answer-block__question__toggle\">+<\/div>\n                <\/div>\n                <div class=\"bobex-simple-question-answer-block__answer\" style=\"background-color: !important; color: black!important;\">\n                    <div class=\"bobex-simple-question-answer-block__answer__content\">Si le grenier est\u00a0<strong>non chauff\u00e9<\/strong>, il vaut mieux isoler le\u00a0<strong>plancher<\/strong>. S\u2019il est\u00a0<strong>am\u00e9nag\u00e9 ou chauff\u00e9<\/strong>, il faut isoler la\u00a0<strong>toiture<\/strong>.<\/div>\n                    <div>\n<div class=\"wp-block-bobex-simple-question-answer\"><\/div>\n<\/div>\n                <\/div>\n            <\/div>\n        \n\n\n            <div class=\"bobex-simple-question-answer-block\">\n                <div class=\"bobex-simple-question-answer-block__question\" style=\"background-color: #63b0d1!important; color: white!important;\">\n                    <h3 style=\"color: white!important; margin:unset; font-size:1.2rem;\" class=\"bobex-simple-question-answer-block__question__content\"><span class=\"ez-toc-section\" id=\"Peut-on_poser_un_chauffage_au_sol_sur_une_isolation_avant_chape\"><\/span><strong>Peut-on poser un chauffage au sol sur une isolation avant chape ?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n                    <div class=\"bobex-simple-question-answer-block__question__toggle\">+<\/div>\n                <\/div>\n                <div class=\"bobex-simple-question-answer-block__answer\" style=\"background-color: !important; color: black!important;\">\n                    <div class=\"bobex-simple-question-answer-block__answer__content\"><strong>Oui<\/strong>, c\u2019est m\u00eame la configuration id\u00e9ale pour limiter les d\u00e9perditions vers le bas et optimiser l\u2019efficacit\u00e9 du syst\u00e8me.<\/div>\n                    <div>\n<div class=\"wp-block-bobex-simple-question-answer\"><\/div>\n<\/div>\n                <\/div>\n            <\/div>\n        <\/div>\n\n                    <script type=\"application\/ld+json\">\n                        {\"@context\":\"https:\\\/\\\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Quel isolant choisir pour un plancher bois \\u00e0 l\\u2019\\u00e9tage ?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"La\\u00a0<strong>laine de roche<\\\/strong>\\u00a0ou la\\u00a0<strong>ouate de cellulose<\\\/strong>\\u00a0sont id\\u00e9ales pour un plancher bois \\u00e0 l\\u2019\\u00e9tage : elles offrent une bonne isolation thermique et acoustique, sans alourdir la structure.\"}},{\"@type\":\"Question\",\"name\":\"Quelle est la meilleure isolation pour le sol d'une maison ancienne ?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Le\\u00a0<strong>li\\u00e8ge expans\\u00e9<\\\/strong>\\u00a0ou la\\u00a0<strong>mousse polyur\\u00e9thane projet\\u00e9e<\\\/strong>\\u00a0sont souvent les meilleurs choix pour une maison ancienne : ils sont efficaces, r\\u00e9sistants \\u00e0 l\\u2019humidit\\u00e9 et adapt\\u00e9s aux sols irr\\u00e9guliers.\"}},{\"@type\":\"Question\",\"name\":\"<strong>Faut-il isoler<\\\/strong>\\u00a0la\\u00a0<strong>toiture ou<\\\/strong>\\u00a0le plancher du\\u00a0<strong>grenier<\\\/strong>\\u00a0?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Si le grenier est\\u00a0<strong>non chauff\\u00e9<\\\/strong>, il vaut mieux isoler le\\u00a0<strong>plancher<\\\/strong>. 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