{"id":11101,"date":"2026-07-14T23:55:39","date_gmt":"2026-07-15T03:55:39","guid":{"rendered":"https:\/\/phtech.option-design.ca\/buying-guide\/isolation-rendement-energetique\/"},"modified":"2026-07-15T00:20:17","modified_gmt":"2026-07-15T04:20:17","slug":"isolation-rendement-energetique","status":"publish","type":"buying-guide","link":"https:\/\/phtech.option-design.ca\/fr\/guide-achat\/isolation-rendement-energetique\/","title":{"rendered":"\u00c9tape 5 Privil\u00e9giez une fen\u00eatre \u00e0 isolation \u00e9lev\u00e9e"},"content":{"rendered":"<p>Certification ENERGY STAR\u00ae, valeur R, valeur U, coefficient de gain solaire\u2026 Il est primordial de choisir une fen\u00eatre offrant une excellente isolation.<\/p>\n<h3 class=\"wp-block-heading\">La valeur R<\/h3>\n<p>Mesure l&rsquo;isolation d&rsquo;un mat\u00e9riau. Plus la valeur est \u00e9lev\u00e9e, meilleure est l&rsquo;isolation. Un mur atteint habituellement R-25, alors qu&rsquo;une excellente fen\u00eatre atteindra R-5. Ce n&rsquo;est donc pas votre seul crit\u00e8re d&rsquo;achat.<\/p>\n<h3 class=\"wp-block-heading\">La valeur U<\/h3>\n<p>Inverse de la valeur R. Il faut viser la valeur la plus basse possible.<\/p>\n<h3 class=\"wp-block-heading\">Le coefficient R\u00c9<\/h3>\n<p>Rendement \u00e9nerg\u00e9tique calcul\u00e9 selon un rapport d&rsquo;\u00e9quilibre entre valeur U, gain solaire et \u00e9tanch\u00e9it\u00e9 \u00e0 l&rsquo;air. Plus le R\u00c9 est \u00e9lev\u00e9, plus le produit est efficace.<\/p>\n<h3 class=\"wp-block-heading\">La certification ENERGY STAR\u00ae<\/h3>\n<p>Certification volontaire garantissant un produit parmi les plus performants du march\u00e9, avec isolation certifi\u00e9e par une tierce partie ind\u00e9pendante.<\/p>\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n<div class=\"wp-block-group is-content-justification-space-between is-nowrap is-layout-flex wp-container-core-group-is-layout-5924e470 wp-block-group-is-layout-flex\"><div class=\"wp-block-buttons is-layout-flex wp-block-buttons-is-layout-flex\"><div class=\"wp-block-button is-style-outline is-style-outline--1\"><a class=\"wp-block-button__link wp-element-button\" href=\"\/fr\/guide-achat\/finition\/\">\u2190 \u00c9tape 4 \u00b7 Finition<\/a><\/div><\/div><div class=\"wp-block-buttons is-layout-flex wp-block-buttons-is-layout-flex\"><div class=\"wp-block-button\"><a class=\"wp-block-button__link wp-element-button\" href=\"\/fr\/guide-achat\/vitrage\/\">\u00c9tape 6 \u00b7 Vitrage \u2192<\/a><\/div><\/div><\/div>","protected":false},"excerpt":{"rendered":"<p>Valeur R, valeur U, coefficient de gain solaire\u2026 tout comprendre.<\/p>\n","protected":false},"featured_media":0,"menu_order":5,"template":"","guide-category":[49],"class_list":["post-11101","buying-guide","type-buying-guide","status-publish","hentry","guide-category-fenetres"],"acf":[],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/phtech.option-design.ca\/fr\/wp-json\/wp\/v2\/buying-guide\/11101","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/phtech.option-design.ca\/fr\/wp-json\/wp\/v2\/buying-guide"}],"about":[{"href":"https:\/\/phtech.option-design.ca\/fr\/wp-json\/wp\/v2\/types\/buying-guide"}],"version-history":[{"count":2,"href":"https:\/\/phtech.option-design.ca\/fr\/wp-json\/wp\/v2\/buying-guide\/11101\/revisions"}],"predecessor-version":[{"id":11123,"href":"https:\/\/phtech.option-design.ca\/fr\/wp-json\/wp\/v2\/buying-guide\/11101\/revisions\/11123"}],"wp:attachment":[{"href":"https:\/\/phtech.option-design.ca\/fr\/wp-json\/wp\/v2\/media?parent=11101"}],"wp:term":[{"taxonomy":"guide-category","embeddable":true,"href":"https:\/\/phtech.option-design.ca\/fr\/wp-json\/wp\/v2\/guide-category?post=11101"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}