Le choix du syst\u00e8me de toiture plate influence la durabilit\u00e9, la performance \u00e9nerg\u00e9tique, l’entretien et le co\u00fbt total de possession d’un b\u00e2timent. Il n’existe pas de meilleur syst\u00e8me dans l’absolu : le bon choix d\u00e9pend de l’usage du b\u00e2timent, de la charge des \u00e9quipements, du budget et de l’horizon de d\u00e9tention. Voici un survol des syst\u00e8mes les plus courants au Qu\u00e9bec.<\/p>
Tr\u00e8s r\u00e9pandue au Qu\u00e9bec pour les toitures plates et \u00e0 faible pente, elle est appliqu\u00e9e en deux couches soud\u00e9es. C’est un syst\u00e8me robuste, r\u00e9put\u00e9 pour son \u00e9tanch\u00e9it\u00e9 et sa r\u00e9sistance au pi\u00e9tinement et aux \u00e9carts de temp\u00e9rature extr\u00eames. \u00c0 consid\u00e9rer : une installation par soudure exigeant une main-d’\u0153uvre sp\u00e9cialis\u00e9e et qualifi\u00e9e.<\/p>
Membrane monocouche thermoplastique, souvent de couleur p\u00e2le, appr\u00e9ci\u00e9e pour sa r\u00e9flectivit\u00e9 solaire (toit blanc) qui r\u00e9duit la charge de climatisation. Elle est l\u00e9g\u00e8re et ses joints sont thermosoud\u00e9s. La qualit\u00e9 varie selon les produits : l’\u00e9paisseur et la pose sont d\u00e9terminantes.<\/p>
Membrane monocouche de caoutchouc synth\u00e9tique, reconnue pour sa long\u00e9vit\u00e9 et sa simplicit\u00e9 d’entretien. G\u00e9n\u00e9ralement de couleur fonc\u00e9e (moins r\u00e9fl\u00e9chissante), elle offre une bonne r\u00e9sistance aux UV; les joints coll\u00e9s demandent une ex\u00e9cution soign\u00e9e.<\/p>
Comparez les syst\u00e8mes sur le cycle de vie complet : dur\u00e9e de vie estim\u00e9e, entretien, performance \u00e9nerg\u00e9tique et garantie. Un syst\u00e8me un peu plus cher \u00e0 l’installation, mais plus durable et plus efficace \u00e9nerg\u00e9tiquement, revient souvent moins cher sur 25 ans. V\u00e9rifiez aussi la compatibilit\u00e9 avec votre isolation, vos \u00e9quipements de toit et les exigences du Code du b\u00e2timent.<\/p>
Le bon syst\u00e8me se choisit avec un partenaire capable d’\u00e9valuer votre b\u00e2timent dans son ensemble \u2014 structure, isolation, drainage et usage \u2014 plut\u00f4t que de proposer une solution unique. C’est l\u00e0 que l’accompagnement en gestion de projet fait la diff\u00e9rence.<\/p>","protected":false},"excerpt":{"rendered":"
Le choix du syst\u00e8me de toiture plate influence la durabilit\u00e9, la performance \u00e9nerg\u00e9tique, l’entretien et le co\u00fbt total de possession […]<\/p>\n","protected":false},"author":4,"featured_media":8077,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[30],"tags":[],"class_list":["post-8657","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-systemes-de-toiture"],"yoast_head":"\n