{"id":1050,"date":"2026-03-20T14:13:41","date_gmt":"2026-03-20T13:13:41","guid":{"rendered":"https:\/\/www.saint-paul-angouleme.fr\/blogs4\/401\/?p=1050"},"modified":"2026-03-20T14:13:41","modified_gmt":"2026-03-20T13:13:41","slug":"table-n1-groupe-n1-article-2-ameliorer-le-confort-thermique-isolation-thermique-les-materiaux","status":"publish","type":"post","link":"https:\/\/www.saint-paul-angouleme.fr\/blogs4\/401\/2026\/03\/20\/table-n1-groupe-n1-article-2-ameliorer-le-confort-thermique-isolation-thermique-les-materiaux\/","title":{"rendered":"Table n\u00b01-Groupe n\u00b01-Article 2-Am\u00e9liorer le confort thermique\/Isolation Thermique\/Les Mat\u00e9riaux."},"content":{"rendered":"<p><strong>1<\/strong>-Dans une maison individuelle non isol\u00e9 les parts de d\u00e9perdition de chaleur sont :<img loading=\"lazy\" decoding=\"async\" class=\"wp-image-977 alignright\" src=\"https:\/\/www.saint-paul-angouleme.fr\/blogs4\/401\/wp-content\/uploads\/2026\/03\/DOC4-DeperditionChaleur.jpg\" alt=\"\" width=\"273\" height=\"249\" srcset=\"https:\/\/www.saint-paul-angouleme.fr\/blogs4\/401\/wp-content\/uploads\/2026\/03\/DOC4-DeperditionChaleur.jpg 614w, https:\/\/www.saint-paul-angouleme.fr\/blogs4\/401\/wp-content\/uploads\/2026\/03\/DOC4-DeperditionChaleur-300x274.jpg 300w\" sizes=\"auto, (max-width: 273px) 100vw, 273px\" \/><\/p>\n<p><strong>a<\/strong>&#8211; Pour le toit : <strong>25 \u00e0 30%<\/strong>,<\/p>\n<p><strong>b<\/strong>&#8211; Pour les murs : <strong>20 \u00e0 25%<\/strong>,<\/p>\n<p><strong>c<\/strong>&#8211; Pour l&rsquo;air renouvel\u00e9 et fuites : <strong>20 \u00e0 25%<\/strong>,<\/p>\n<p><strong>d<\/strong>&#8211; Pour les fen\u00eatres :<strong> 10 \u00e0 15%<\/strong>,<\/p>\n<p><strong>e<\/strong>&#8211; Pour les planchers bas :<strong> 7 \u00e0 10%<\/strong>,<\/p>\n<p><strong>f<\/strong>&#8211; Pour les ponts thermiques : <strong>5 \u00e0 10%<\/strong>,<\/p>\n<p>&nbsp;<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-976 alignright\" src=\"https:\/\/www.saint-paul-angouleme.fr\/blogs4\/401\/wp-content\/uploads\/2026\/03\/DOC4-Toit-mal-isole.jpg\" alt=\"\" width=\"241\" height=\"155\" \/><strong>2-<\/strong> Une mauvaise isolation du toit, peut \u00eatre d\u00e9tectable en hiver par temps de neige. La neige accumul\u00e9e sur les toits, fondra plus vite, d\u00e8s qu&rsquo;une habitation pr\u00e9sentera un d\u00e9faut d&rsquo;isolation au niveau de la toiture.<\/p>\n<p>&nbsp;<\/p>\n<p><strong>3-<\/strong> Pour am\u00e9liorer le confort thermique d&rsquo;une habitation, nous utilisons des isolants thermiques qui permettent de r\u00e9duire la quantit\u00e9 de chaleur transmise avec l&rsquo;ext\u00e9rieur. Plusieurs types de mat\u00e9riaux isolants existent :<\/p>\n<p><strong>a-<\/strong> isolant min\u00e9ral (laine de verre, laine de roche, etc.)<\/p>\n<p><strong>b-<\/strong> isolants naturels :<\/p>\n<ul>\n<li>isolant v\u00e9g\u00e9tale (ex : ouate de cellulose.)<\/li>\n<li>isolant animal (ex : laine de mouton.)<\/li>\n<\/ul>\n<p><strong>c-<\/strong> les isolants synth\u00e9tiques (ex : polyur\u00e9thane.)<\/p>\n<p><strong>d-<\/strong> les isolants nouvelles g\u00e9n\u00e9rations (ex : brique monomur.)<\/p>\n<p><strong>e-<\/strong> les isolants mince appel\u00e9s aussi \u00a0\u00bb isolants r\u00e9flecteurs \u00ab\u00a0, \u00a0\u00bb multicouches \u00ab\u00a0. Ils sont assembl\u00e9s d&rsquo;une ou plusieurs couches d&rsquo;aluminium ou film plastique alumin\u00e9, l&rsquo;isolant mince comprend diff\u00e9rentes couches de natures diverses : mousse souple, poly\u00e9thyl\u00e8nes \u00e0 bulles, feutre d&rsquo;origine animale, v\u00e9g\u00e9tale ou de synth\u00e8se. Ce sont des isolants de faible \u00e9paisseur.<\/p>\n<p><strong>4-<\/strong> On am\u00e9liore l&rsquo;isolation thermique d&rsquo;un mat\u00e9riau en augmentant son \u00e9paisseur. Pour une efficacit\u00e9 optimale, <strong>toutes les parois doivent \u00eatre isol\u00e9es.<\/strong> Pour une habitation, on isole les murs ext\u00e9rieurs, le plancher sur vide sanitaire et le plafond sous les combles.<\/p>\n<p><strong>5-<\/strong> La performance thermique d&rsquo;un mat\u00e9riau isolant s&rsquo;appelle <strong>la r\u00e9sistance thermique R.<\/strong>\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0Plus <strong>R<\/strong> est grand et plus le mat\u00e9riau est isolant.\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 <strong>R<\/strong> d\u00e9pend de deux param\u00e8tres : en fonction de la conductivit\u00e9 thermique<strong> \u03bb (lambda)<\/strong> propre \u00e0 chaque mat\u00e9riau et en fonction de son \u00e9paisseur<strong> e.<\/strong><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-978\" src=\"https:\/\/www.saint-paul-angouleme.fr\/blogs4\/401\/wp-content\/uploads\/2026\/03\/DOC4-Tableau-resistance-thermique.jpg\" alt=\"\" width=\"1237\" height=\"217\" srcset=\"https:\/\/www.saint-paul-angouleme.fr\/blogs4\/401\/wp-content\/uploads\/2026\/03\/DOC4-Tableau-resistance-thermique.jpg 1237w, https:\/\/www.saint-paul-angouleme.fr\/blogs4\/401\/wp-content\/uploads\/2026\/03\/DOC4-Tableau-resistance-thermique-300x53.jpg 300w, https:\/\/www.saint-paul-angouleme.fr\/blogs4\/401\/wp-content\/uploads\/2026\/03\/DOC4-Tableau-resistance-thermique-1024x180.jpg 1024w, https:\/\/www.saint-paul-angouleme.fr\/blogs4\/401\/wp-content\/uploads\/2026\/03\/DOC4-Tableau-resistance-thermique-768x135.jpg 768w\" sizes=\"auto, (max-width: 1237px) 100vw, 1237px\" \/><\/p>\n<p>&nbsp;<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-979 alignnone\" src=\"https:\/\/www.saint-paul-angouleme.fr\/blogs4\/401\/wp-content\/uploads\/2026\/03\/DOC5-image1.jpg\" alt=\"\" width=\"324\" height=\"275\" srcset=\"https:\/\/www.saint-paul-angouleme.fr\/blogs4\/401\/wp-content\/uploads\/2026\/03\/DOC5-image1.jpg 562w, https:\/\/www.saint-paul-angouleme.fr\/blogs4\/401\/wp-content\/uploads\/2026\/03\/DOC5-image1-300x255.jpg 300w\" sizes=\"auto, (max-width: 324px) 100vw, 324px\" \/><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-980 alignright\" src=\"https:\/\/www.saint-paul-angouleme.fr\/blogs4\/401\/wp-content\/uploads\/2026\/03\/DOC5-image2.jpg\" alt=\"\" width=\"394\" height=\"268\" srcset=\"https:\/\/www.saint-paul-angouleme.fr\/blogs4\/401\/wp-content\/uploads\/2026\/03\/DOC5-image2.jpg 698w, https:\/\/www.saint-paul-angouleme.fr\/blogs4\/401\/wp-content\/uploads\/2026\/03\/DOC5-image2-300x204.jpg 300w\" sizes=\"auto, (max-width: 394px) 100vw, 394px\" \/><\/p>\n<p>Photo traditionnelle\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 Image infrarouge<\/p>\n<p>Sur l&rsquo;image infrarouge, plus la zone va vers la couleur jaune\/blanc, plus les d\u00e9perditions de chaleur sont importantes. Dans ce cas, le haut du toit ainsi que les planchers bas sont des zones de fortes d\u00e9perditions de chaleur (certainement un d\u00e9faut d&rsquo;isolation).<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-981 alignnone\" src=\"https:\/\/www.saint-paul-angouleme.fr\/blogs4\/401\/wp-content\/uploads\/2026\/03\/DOC5-image3.jpg\" alt=\"\" width=\"296\" height=\"224\" srcset=\"https:\/\/www.saint-paul-angouleme.fr\/blogs4\/401\/wp-content\/uploads\/2026\/03\/DOC5-image3.jpg 633w, https:\/\/www.saint-paul-angouleme.fr\/blogs4\/401\/wp-content\/uploads\/2026\/03\/DOC5-image3-300x227.jpg 300w\" sizes=\"auto, (max-width: 296px) 100vw, 296px\" \/><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-982 alignright\" src=\"https:\/\/www.saint-paul-angouleme.fr\/blogs4\/401\/wp-content\/uploads\/2026\/03\/DOC5-image4.jpg\" alt=\"\" width=\"412\" height=\"222\" srcset=\"https:\/\/www.saint-paul-angouleme.fr\/blogs4\/401\/wp-content\/uploads\/2026\/03\/DOC5-image4.jpg 887w, https:\/\/www.saint-paul-angouleme.fr\/blogs4\/401\/wp-content\/uploads\/2026\/03\/DOC5-image4-300x162.jpg 300w, https:\/\/www.saint-paul-angouleme.fr\/blogs4\/401\/wp-content\/uploads\/2026\/03\/DOC5-image4-768x415.jpg 768w\" sizes=\"auto, (max-width: 412px) 100vw, 412px\" \/><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-981\" src=\"https:\/\/www.saint-paul-angouleme.fr\/blogs4\/401\/wp-content\/uploads\/2026\/03\/DOC5-image3.jpg\" alt=\"\" width=\"5\" height=\"4\" srcset=\"https:\/\/www.saint-paul-angouleme.fr\/blogs4\/401\/wp-content\/uploads\/2026\/03\/DOC5-image3.jpg 633w, https:\/\/www.saint-paul-angouleme.fr\/blogs4\/401\/wp-content\/uploads\/2026\/03\/DOC5-image3-300x227.jpg 300w, https:\/\/www.saint-paul-angouleme.fr\/blogs4\/401\/wp-content\/uploads\/2026\/03\/DOC5-image3-150x150.jpg 150w\" sizes=\"auto, (max-width: 5px) 100vw, 5px\" \/><\/p>\n<p>Photo traditionnelle\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 Image infrarouge avec cam\u00e9ra <strong>FLIR Agema 550<\/strong><\/p>\n<p>Les lignes jaunes de cette image infrarouge mettent en \u00e9vidence l&rsquo;existence de ponts thermiques situ\u00e9s \u00e0 tous les \u00e9tages de l&rsquo;immeuble.<\/p>\n<p>Maison en <strong>ITI<\/strong> :<img loading=\"lazy\" decoding=\"async\" class=\"wp-image-983 alignleft\" src=\"https:\/\/www.saint-paul-angouleme.fr\/blogs4\/401\/wp-content\/uploads\/2026\/03\/DOC5-image5.jpg\" alt=\"\" width=\"546\" height=\"186\" srcset=\"https:\/\/www.saint-paul-angouleme.fr\/blogs4\/401\/wp-content\/uploads\/2026\/03\/DOC5-image5.jpg 1244w, https:\/\/www.saint-paul-angouleme.fr\/blogs4\/401\/wp-content\/uploads\/2026\/03\/DOC5-image5-300x102.jpg 300w, https:\/\/www.saint-paul-angouleme.fr\/blogs4\/401\/wp-content\/uploads\/2026\/03\/DOC5-image5-1024x349.jpg 1024w, https:\/\/www.saint-paul-angouleme.fr\/blogs4\/401\/wp-content\/uploads\/2026\/03\/DOC5-image5-768x262.jpg 768w\" sizes=\"auto, (max-width: 546px) 100vw, 546px\" \/><\/p>\n<p><strong>I<\/strong>solation <strong>T<\/strong>hermique par l&rsquo;<strong>I<\/strong>nt\u00e9rieur<\/p>\n<p>(apparition de ponts thermiques)<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-984 alignleft\" src=\"https:\/\/www.saint-paul-angouleme.fr\/blogs4\/401\/wp-content\/uploads\/2026\/03\/DOC5-image6.jpg\" alt=\"\" width=\"548\" height=\"186\" srcset=\"https:\/\/www.saint-paul-angouleme.fr\/blogs4\/401\/wp-content\/uploads\/2026\/03\/DOC5-image6.jpg 1246w, https:\/\/www.saint-paul-angouleme.fr\/blogs4\/401\/wp-content\/uploads\/2026\/03\/DOC5-image6-300x102.jpg 300w, https:\/\/www.saint-paul-angouleme.fr\/blogs4\/401\/wp-content\/uploads\/2026\/03\/DOC5-image6-1024x348.jpg 1024w, https:\/\/www.saint-paul-angouleme.fr\/blogs4\/401\/wp-content\/uploads\/2026\/03\/DOC5-image6-768x261.jpg 768w\" sizes=\"auto, (max-width: 548px) 100vw, 548px\" \/>Maison en <strong>ITE <\/strong>:<\/p>\n<p><strong>I<\/strong>solation <strong>T<\/strong>hermique par l&rsquo;<strong>E<\/strong>xterieur<\/p>\n<p>(disparition des ponts thermiques)<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>Photos traditionnelles\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 Images infrarouges<\/p>\n","protected":false},"excerpt":{"rendered":"<p>1-Dans une maison individuelle non isol\u00e9 les parts de d\u00e9perdition de chaleur sont : a&#8211; Pour le toit : 25 \u00e0 30%, b&#8211; Pour les murs : 20 \u00e0 25%, c&#8211; Pour l&rsquo;air renouvel\u00e9 et fuites : 20 \u00e0 25%, d&#8211; Pour les fen\u00eatres : 10 \u00e0 15%, e&#8211; Pour les planchers bas : 7 &#8230; <a title=\"Table n\u00b01-Groupe n\u00b01-Article 2-Am\u00e9liorer le confort thermique\/Isolation Thermique\/Les Mat\u00e9riaux.\" class=\"read-more\" href=\"https:\/\/www.saint-paul-angouleme.fr\/blogs4\/401\/2026\/03\/20\/table-n1-groupe-n1-article-2-ameliorer-le-confort-thermique-isolation-thermique-les-materiaux\/\" aria-label=\"En savoir plus sur Table n\u00b01-Groupe n\u00b01-Article 2-Am\u00e9liorer le confort thermique\/Isolation Thermique\/Les Mat\u00e9riaux.\">Lire la suite<\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2],"tags":[],"class_list":["post-1050","post","type-post","status-publish","format-standard","hentry","category-table-1-groupe-1"],"_links":{"self":[{"href":"https:\/\/www.saint-paul-angouleme.fr\/blogs4\/401\/wp-json\/wp\/v2\/posts\/1050","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.saint-paul-angouleme.fr\/blogs4\/401\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.saint-paul-angouleme.fr\/blogs4\/401\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.saint-paul-angouleme.fr\/blogs4\/401\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.saint-paul-angouleme.fr\/blogs4\/401\/wp-json\/wp\/v2\/comments?post=1050"}],"version-history":[{"count":9,"href":"https:\/\/www.saint-paul-angouleme.fr\/blogs4\/401\/wp-json\/wp\/v2\/posts\/1050\/revisions"}],"predecessor-version":[{"id":1194,"href":"https:\/\/www.saint-paul-angouleme.fr\/blogs4\/401\/wp-json\/wp\/v2\/posts\/1050\/revisions\/1194"}],"wp:attachment":[{"href":"https:\/\/www.saint-paul-angouleme.fr\/blogs4\/401\/wp-json\/wp\/v2\/media?parent=1050"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.saint-paul-angouleme.fr\/blogs4\/401\/wp-json\/wp\/v2\/categories?post=1050"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.saint-paul-angouleme.fr\/blogs4\/401\/wp-json\/wp\/v2\/tags?post=1050"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}