{"id":2396,"date":"2014-08-26T15:32:50","date_gmt":"2014-08-26T13:32:50","guid":{"rendered":"https:\/\/www.la-maison-naturelle.com\/blog\/?p=2396"},"modified":"2023-08-04T20:08:27","modified_gmt":"2023-08-04T18:08:27","slug":"rt-2012-vers-la-rt-2020-ou-rbr-2020","status":"publish","type":"post","link":"https:\/\/www.la-maison-naturelle.com\/blog\/rt-2012-vers-la-rt-2020-ou-rbr-2020\/","title":{"rendered":"R\u00e9glementation Thermique : explications"},"content":{"rendered":"<table style=\" width=\"100%\",max-width=\"839\">\n<tbody>\n<tr>\n<td colspan=\"3\"><a href=\"https:\/\/www.la-maison-naturelle.com\/\"><img decoding=\"async\" class=\"wp-image-5568 aligncenter\" src=\"https:\/\/www.la-maison-naturelle.com\/blog\/wp-content\/uploads\/2012\/05\/Dark-Green-and-Gray-Professional-and-Clean-E-Commerce-Email-Header-300x35.png\" alt=\"\" width=\"839\" srcset=\"https:\/\/www.la-maison-naturelle.com\/blog\/wp-content\/uploads\/2012\/05\/Dark-Green-and-Gray-Professional-and-Clean-E-Commerce-Email-Header-300x35.png 300w, https:\/\/www.la-maison-naturelle.com\/blog\/wp-content\/uploads\/2012\/05\/Dark-Green-and-Gray-Professional-and-Clean-E-Commerce-Email-Header-1024x119.png 1024w, https:\/\/www.la-maison-naturelle.com\/blog\/wp-content\/uploads\/2012\/05\/Dark-Green-and-Gray-Professional-and-Clean-E-Commerce-Email-Header-768x89.png 768w, https:\/\/www.la-maison-naturelle.com\/blog\/wp-content\/uploads\/2012\/05\/Dark-Green-and-Gray-Professional-and-Clean-E-Commerce-Email-Header-1536x178.png 1536w, https:\/\/www.la-maison-naturelle.com\/blog\/wp-content\/uploads\/2012\/05\/Dark-Green-and-Gray-Professional-and-Clean-E-Commerce-Email-Header.png 1578w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a><\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/www.la-maison-naturelle.com\/5260-materiaux-et-bricolage\"><img loading=\"lazy\" decoding=\"async\" class=\"alignright size-medium wp-image-5565\" src=\"https:\/\/www.la-maison-naturelle.com\/blog\/wp-content\/uploads\/2012\/05\/73a5f09c-2ef6-46dd-90d1-9cf73599e16b-1-249x300.png\" alt=\"Mat\u00e9riaux et bricolage\" width=\"249\" height=\"300\" srcset=\"https:\/\/www.la-maison-naturelle.com\/blog\/wp-content\/uploads\/2012\/05\/73a5f09c-2ef6-46dd-90d1-9cf73599e16b-1-249x300.png 249w, https:\/\/www.la-maison-naturelle.com\/blog\/wp-content\/uploads\/2012\/05\/73a5f09c-2ef6-46dd-90d1-9cf73599e16b-1.png 397w\" sizes=\"auto, (max-width: 249px) 100vw, 249px\" \/><\/a><\/td>\n<td><a href=\"https:\/\/www.la-maison-naturelle.com\/5266-amenagement-du-jardin\"><img loading=\"lazy\" decoding=\"async\" class=\"alignright size-medium wp-image-5564\" src=\"https:\/\/www.la-maison-naturelle.com\/blog\/wp-content\/uploads\/2012\/05\/9224811f-6da5-4d4d-8634-e9a2517a9565-1-249x300.png\" alt=\"Jardin et ext\u00e9rieur\" width=\"249\" height=\"300\" srcset=\"https:\/\/www.la-maison-naturelle.com\/blog\/wp-content\/uploads\/2012\/05\/9224811f-6da5-4d4d-8634-e9a2517a9565-1-249x300.png 249w, https:\/\/www.la-maison-naturelle.com\/blog\/wp-content\/uploads\/2012\/05\/9224811f-6da5-4d4d-8634-e9a2517a9565-1.png 397w\" sizes=\"auto, (max-width: 249px) 100vw, 249px\" \/><\/a><\/td>\n<td><a href=\"https:\/\/www.la-maison-naturelle.com\/5267-interieur-et-decoration\"><img loading=\"lazy\" decoding=\"async\" class=\"alignright size-medium wp-image-5563\" src=\"https:\/\/www.la-maison-naturelle.com\/blog\/wp-content\/uploads\/2012\/05\/b9400ea8-440a-4a4a-8db6-682fde3f9652-1-249x300.png\" alt=\"Int\u00e9rieur et d\u00e9coration\" width=\"249\" height=\"300\" srcset=\"https:\/\/www.la-maison-naturelle.com\/blog\/wp-content\/uploads\/2012\/05\/b9400ea8-440a-4a4a-8db6-682fde3f9652-1-249x300.png 249w, https:\/\/www.la-maison-naturelle.com\/blog\/wp-content\/uploads\/2012\/05\/b9400ea8-440a-4a4a-8db6-682fde3f9652-1.png 397w\" sizes=\"auto, (max-width: 249px) 100vw, 249px\" \/><\/a><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>La d\u00e9nomination RBR 2020 (R\u00e9glementation B\u00e2timent Responsable) devrait s&rsquo;imposer progressivement en lieu et place du terme RT 2020.<\/h2>\n<p>Le grand public se perd dans les d\u00e9nominations qui se sont accumul\u00e9es au gr\u00e8s des nouvelles r\u00e9glementations successives et des multiples propositions des diff\u00e9rents organismes et experts charg\u00e9s par les pouvoirs publics de r\u00e9fl\u00e9chir \u00e0 la transition \u00e9nerg\u00e9tique et aux moyens d&rsquo;y parvenir.<\/p>\n<p>Nous tentons dans ce chapitre de faire un \u00ab\u00a0arr\u00eat sur image\u00a0\u00bb afin aider l&rsquo;auto-constructeur et le grand public en g\u00e9n\u00e9ral \u00e0 s&rsquo;y retrouver dans ce m\u00e9andre de termes qui nomment, ici\u00a0 un \u00ab\u00a0label pilote\u00a0\u00bb propos\u00e9 par une association au nom barbare, l\u00e0 un \u00ab\u00a0label officiel r\u00e9glementaire\u00a0\u00bb, ailleurs une \u00ab\u00a0directive gouvernementale\u00a0\u00bb&#8230;.<\/p>\n<h2>\u00c9volution de la R\u00e9glementation Thermique au cours des deux d\u00e9cennies de 2000 \u00e0 2020<\/h2>\n<p>Ce qui int\u00e9resse un premier lieu un n\u00e9ophyte est de comprendre, \u00e0 une date donn\u00e9e de son projet, o\u00f9 en sont les obligations en terme d&rsquo;\u00e9conomie d&rsquo;\u00e9nergie\u00a0de son habitation en cours de r\u00e9novation ou de sa future construction, son extension ou encore sa sur\u00e9l\u00e9vation.<\/p>\n<h2>Quelle est la meilleure fa\u00e7on de traiter l&rsquo;isolation thermique de votre chantier \u00e0 venir.<\/h2>\n<h3>Rappel des exigences thermiques de la r\u00e9glementation RT 2005 \/ RT2012 \/ RBR020<\/h3>\n<p>La RT 2005 pr\u00e9voyait d&rsquo;atteindre un niveau de consommation d&rsquo;\u00e9nergie maximum qui exprim\u00e9 en litres de fioul,\u00a0 ne devrait pas d\u00e9passer les 1000 litres de fioul dans une habitation moyenne (110 m\u00b2 de SHON) pour assurer les besoins de chauffage et d&rsquo;eau chaude sanitaire, avec une facture moyenne de ne d\u00e9passant par les 1000 \u20ac annuel \u00e0 l&rsquo;\u00e9poque. Soit\u00a0 une consommation maximum en kilowatt \/ heure de : 130 kWh\/m\u00b2 annuel. Ce plafond de consommation \u00e9tant consid\u00e9r\u00e9 d&rsquo;un bon niveau.<\/p>\n<p>La RT 2012\u00a0 a \u00e9t\u00e9 beaucoup plus exigeante pour plafonner \u00e0 50 kWh\/m\u00b2 annuel soit presque trois fois moins. Cette exigence passant par un investissement suppl\u00e9mentaire d&rsquo;environ 8000 \u20ac amortissable en 9 ann\u00e9es, soit un gain au bout de 20 ann\u00e9es de 28 000 \u20ac <em>(sans tenir compte de l&rsquo;<\/em><em>augmentation du prix de l&rsquo;\u00e9nergie, dont on nous annonce qu&rsquo;elle sera cons\u00e9quente)<\/em>.<\/p>\n<p>La RT 2012 permet de r\u00e9duire la consommation d&rsquo;\u00e9nergie maximum \u00e0 moins de 400 litres de fioul pour une habitation (SHON 110 m\u00b2), soit une facture moyenne inf\u00e9rieur \u00e0\u00a0 400 \u20ac annuel.<\/p>\n<h3>Le niveau z\u00e9ro de consommation dans nos habitats est programm\u00e9 pour 2020.<\/h3>\n<p>Cela signifie l&rsquo;av\u00e8nement des B\u00e2timents \u00e0 Energie POSitive (BE POS), pour un co\u00fbt d&rsquo;investissement suppl\u00e9mentaire moyen de environ 35 000 \u20ac ammortisable sur 16 ans et un gain d&rsquo;environ 21000 \u20ac.<\/p>\n<h3>Comment isoler sa maison\u00a0 pour \u00eatre en phase avec la prochaine r\u00e9glementation RBR 2020 ?<\/h3>\n<p>Avant toute chose,\u00a0 il convient de se pencher, un court moment rassurez-vous, sur les crit\u00e8res techniques communs \u00e0 tous les <a href=\"https:\/\/www.la-maison-naturelle.com\/5273-isolation\">isolants thermiques<\/a>. Le terme R pour <a href=\"https:\/\/www.la-maison-naturelle.com\/blog\/la-resistance-thermique\/\" data-internallinksmanager029f6b8e52c=\"78\" title=\"Qu'est-ce que la r\u00e9sistance thermique ?\">R\u00e9sistance Thermique<\/a> est le seul et unique coefficient \u00e0 retenir pour connaitre l&rsquo;\u00e9paisseur de l&rsquo;isolant qui doit \u00eatre plac\u00e9 selon qu&rsquo;il s&rsquo;agisse de la toiture, des murs ou des sols.<\/p>\n<p>Tous les isolants en vente sur ce site donnent ce chiffre R, \u00e9paisseur par \u00e9paisseur.<\/p>\n<p>A retenir : Plus l&rsquo;\u00e9paisseur de l&rsquo;isolant thermique sera importante plus ce chiffre R sera \u00e9lev\u00e9.<\/p>\n<p>La R\u00e9glementation Thermique pr\u00e9voyait que pour atteindre la r\u00e9duction de la consommation d&rsquo;\u00e9nergie indiqu\u00e9e ci-dessus, le niveau de R\u00e9sistance Thermique (somme des R de chaque mat\u00e9riaux install\u00e9 composant la paroi)\u00a0 de l&rsquo;enveloppe devait \u00eatre\u00a0 au miminum de :<\/p>\n<table border=\"1\" width=\"222\" cellspacing=\"1\" cellpadding=\"1\" align=\"center\">\n<tbody>\n<tr>\n<td><\/td>\n<td>Murs<\/td>\n<td>Toitures<\/td>\n<td>Sols<\/td>\n<\/tr>\n<tr>\n<td>RT 2005<\/td>\n<td>R = 3,4<\/td>\n<td>R = 5<\/td>\n<td>R = 2,2<\/td>\n<\/tr>\n<tr>\n<td>RT 2012<\/td>\n<td>R = 5<\/td>\n<td>R = 7,5<\/td>\n<td>R = 4,2<\/td>\n<\/tr>\n<tr>\n<td>RT 2020<\/td>\n<td>R = 6<\/td>\n<td>R = 8,5<\/td>\n<td>R = 4,7<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>On retiendra donc que la R\u00e9glementation Thermique entre 2013 et 2019 sera exig\u00e9e pour un R de 5 en mur, 7,5 en toiture, et 4,2 pour le sol.<\/p>\n<h4>Le vitrage isolant<\/h4>\n<p>Le niveau de d\u00e9perdition de la chaleur \u00e0 travers les vitrages est aussi d\u00e9fini. Il r\u00e9clame au minimum le double vitrage et l&rsquo;existence de volets dont les performances sont certifi\u00e9es : le niveau demand\u00e9 depuis 2012 est de 1,4 W\/m\u00b2\/K ( les sp\u00e9cialistes de la fen\u00eatre vous renseigneront sur ce point).<\/p>\n<h4>L&rsquo;\u00e9tanch\u00e9it\u00e9 \u00e0 l&rsquo;air<\/h4>\n<p>La notion d&rsquo;<a href=\"https:\/\/www.la-maison-naturelle.com\/3042-etancheite-a-l-air\" data-internallinksmanager029f6b8e52c=\"138\" title=\"\u00e9tanch\u00e9it\u00e9 \u00e0 l\u2019air\">\u00e9tanch\u00e9it\u00e9 \u00e0 l&rsquo;air<\/a> est devenue primordiale pour atteindre les exigences : Ce niveau est d\u00e9fini en d\u00e9bit de fuite d&rsquo;air de l&rsquo;ensemble de l&rsquo;enveloppe : exprim\u00e9 en m3 \/ heure \/m\u00b2 de la surface totale de l&rsquo;habitation.<\/p>\n<p>Pour simplifier cette notion nous avons indiqu\u00e9 dans le descriptif\u00a0 des produits d&rsquo;\u00e9tanch\u00e9it\u00e9 en vente sur ce site, ceux qui sont garantis par les fabricants en RT 2012 ( niveau actuel demand\u00e9)<\/p>\n<p>Par exemple : Frein vapeur <a href=\"https:\/\/www.la-maison-naturelle.com\/blog\/cest-quoi-la-valeur-sd-dun-pare-vapeur\/\" data-internallinksmanager029f6b8e52c=\"76\" title=\"valeur SD\">sd<\/a> = 18m\u00a0 (Film \u00e9tanch\u00e9it\u00e9 conforme au <a href=\"https:\/\/www.la-maison-naturelle.com\/blog\/un-dtu-norme-batiment\/\" data-internallinksmanager029f6b8e52c=\"126\" title=\"Qu'est-ce qu'un DTU ?\">DTU<\/a> et \u00e0 la\u00a0 RT2012)<\/p>\n<h3>Les Equipements dans le cadre de\u00a0 RT 2012 :<\/h3>\n<p>La RT 2012 r\u00e9clame pour atteindre pleinement son but,\u00a0 l&rsquo;installation d\u00a0\u00bb\u00e9quipements \u00e0 savoir : une chaudi\u00e8re \u00e0 condensation, la production d&rsquo;eau chaude solaire et une VMC \u00e0 simple flux.<\/p>\n<h3><\/h3>\n<h3>Les Equipements en RBR 2020 :<\/h3>\n<p>En 2020, le respect des donn\u00e9es thermiques d\u00e9velopp\u00e9es dans les paragraphes pr\u00e9c\u00e9dents ne suffiront plus pour acc\u00e9der \u00e0 la notion de B\u00e2timent \u00e0 Energie POSitive\u00a0 (BE POS) et se sont principalement le renforcement des performances des \u00e9quipements qui sera d\u00e9terminant en se diff\u00e9renciant de la RT 2012 : VMC double flux +\u00a0 20 m\u00b2 de panneaux photovolta\u00efques afin d&rsquo;obtenir un surplus d&rsquo;\u00e9nergie donc Positive.<\/p>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":5,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6],"tags":[],"class_list":["post-2396","post","type-post","status-publish","format-standard","hentry","category-les-dossiers"],"_wp_attached_file":null,"_wp_attachment_metadata":null,"_wp_attachment_context":null,"_wp_attachment_image_alt":null,"_hf_settings":null,"hf_message_success":null,"hf_message_invalid_email":null,"hf_message_required_field_missing":null,"hf_message_error":null,"_menu_item_type":null,"_menu_item_menu_item_parent":null,"_menu_item_object_id":null,"_menu_item_object":null,"_menu_item_target":null,"_menu_item_classes":null,"_menu_item_xfn":null,"_menu_item_url":null,"_yoast_wpseo_primary_category":"6","_thumbnail_id":null,"_oembed_26d84b2c06432105b0a19987ae029a71":null,"_oembed_43e9e2dfde1b9b4ed91c9711026b7ef9":null,"_oembed_1fe1564764edbddc3b61e81acf52be88":null,"_oembed_df60f474cd845141e7ce6596d101e4a0":null,"_oembed_825e674795e2435c0bc66eb08e5d2c8b":null,"_oembed_time_825e674795e2435c0bc66eb08e5d2c8b":null,"_oembed_e917352ff4cc21ea91383201eeaa08cf":null,"_oembed_2363c16c972791c33e283320dc564fce":null,"_oembed_cc9ad5b5073a84776f6a62e33e6c7498":null,"_oembed_time_cc9ad5b5073a84776f6a62e33e6c7498":null,"_oembed_305147fcf4b856de518466e695c209cd":null,"_oembed_8517a877084ae01a5296813ee1d16a2b":null,"_oembed_2741f1556b243e68379198f98ba7f864":null,"_oembed_c3ffa24981451396c950ece2129da0f6":null,"_oembed_6f9091ebe2f3f5fcb5698ba6f4b41477":null,"_wp_old_slug":null,"_oembed_e4fb0f68ba12b85e9e231afe151ba12a":null,"_oembed_3c60e98bd703e617e67f5bbb3b97424d":null,"_oembed_bb060374498dcf40cb6068efe4be87e1":null,"_oembed_d0403e1e71c3a29020bd546b159480f1":null,"_oembed_b030ff17fbbbf8661c59c2ab8ff289eb":null,"_oembed_5cec699ba0631c6c0e4ba4f6af5f228e":null,"_oembed_b06a67f278b90cf4e8dd17cb12fe67b0":null,"_oembed_8e190e4fea2256f17420434651556236":null,"_oembed_b5ded119f1337916a0fc64d2ad85c95f":null,"_oembed_d9364a7a81be31c01415da2c50a48932":null,"_oembed_738cafa36d51a58e5ae3e458aa8f7584":null,"_oembed_ebcab5184b6b321b28efbcbec079859b":null,"_oembed_3dd9e35c2b7b268070e74da5b89cf937":null,"_oembed_e14b167b493e311a1c4e2aab38a463e8":null,"_oembed_dc8f7d108b38f3f0c2e0785b8bc46cae":null,"_oembed_55cf1c5142884afed312c2666bf27520":null,"_oembed_2292333bf03a956b4b61afafeff6bca0":null,"_oembed_82a986a6b900856fec23169de03a0038":null,"_oembed_4048ded025352b83569104210074165a":null,"_oembed_033b42b1af757abc39e4487233cee7f5":null,"_oembed_aec1d50f2b159366be8e37e94b201be1":null,"_oembed_0adc8480b2fcadf9a1733f572ce3d3f8":null,"_yoast_wpseo_title":null,"_yoast_wpseo_focuskw":null,"_yoast_wpseo_linkdex":null,"_yoast_wpseo_metadesc":null,"_yoast_wpseo_wordproof_timestamp":"","_tpl_archive_meta_key":null,"_form":null,"_mail":null,"_mail_2":null,"_messages":null,"_additional_settings":null,"_locale":null,"_wp_old_date":null,"_edit_last":"5","_wpb_vc_js_status":"false","_yoast_wpseo_estimated-reading-time-minutes":"5","_edit_lock":"1691172377:5","_yoast_wpseo_content_score":"30","yoast_head":"<!-- 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