{"id":106,"date":"2016-10-06T00:00:00","date_gmt":"2016-10-05T22:00:00","guid":{"rendered":"https:\/\/blog.deepki.com\/2016\/10\/06\/interview-lionel-bertrand-france-chantier-renovation-energetique\/"},"modified":"2022-11-17T16:37:49","modified_gmt":"2022-11-17T15:37:49","slug":"interview-lionel-bertrand-france-chantier-renovation-energetique","status":"publish","type":"post","link":"https:\/\/www.deepki.com\/fr\/blog\/interview-lionel-bertrand-france-chantier-renovation-energetique\/","title":{"rendered":"[ITW] Lionel Bertrand : \u201cEn France, le chantier de la r\u00e9novation \u00e9nerg\u00e9tique est encore devant nous\u201d"},"content":{"rendered":"\n<p><strong>Responsable de la division Innovation-D\u00e9veloppement au Centre Scientifique et Technique du B\u00e2timent (<a rel=\"noreferrer noopener\" href=\"http:\/\/www.cstb.fr\/\" target=\"_blank\">CSTB<\/a>), Lionel BERTRAND partage en exclusivit\u00e9 pour Le Blog de Deepki sa vision du march\u00e9 de la r\u00e9novation et de l\u2019am\u00e9lioration de la <a rel=\"noreferrer noopener\" href=\"https:\/\/www.deepki.com\/fr\/glossaire\/performance-energetique\/\" target=\"_blank\">performance \u00e9nerg\u00e9tique<\/a>. Il nous donne \u00e9galement son point de vue sur l\u2019impact de l&rsquo;utilisation de la data sur le chantier de la r\u00e9novation.<\/strong><\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-t-black-color\">Quels sont les chantiers men\u00e9s actuellement par le CSTB ?<\/mark><\/h2>\n\n\n\n<p><strong>LB :<\/strong> Au CSTB, notre objectif est d\u2019accompagner les gestionnaires de parc immobilier vers la <a href=\"https:\/\/www.deepki.com\/fr\/glossaire\/transition-energetique\/\" target=\"_blank\" rel=\"noreferrer noopener\">transition \u00e9nerg\u00e9tique<\/a>. L<strong>\u2019enjeu principal est la r\u00e9novation \u00e9nerg\u00e9tique de l\u2019ensemble des b\u00e2timents existants.<\/strong><br>Nous essayons d\u2019\u00eatre une aide \u00e0 la d\u00e9cision en mettant face \u00e0 face le potentiel de gains de performance et l\u2019effort de r\u00e9novation \u00e0 produire pour l\u2019atteindre. Pour ce faire, nous tentons de r\u00e9pondre \u00e0 diff\u00e9rentes questions :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Que faire avec son parc pour atteindre ses objectifs ?<\/li>\n\n\n\n<li>Quelles sont les solutions techniques pour mobiliser ces gisements ?<\/li>\n\n\n\n<li>Quelles actions prioriser ?<\/li>\n<\/ul>\n\n\n\n<p>Notre r\u00e9flexion comprend diff\u00e9rents champs d\u2019actions : l\u2019enveloppe du b\u00e2timent, les syst\u00e8mes et \u00e9quipements \u00e9nerg\u00e9tiques embarqu\u00e9s, l\u2019exploitation du b\u00e2timent (r\u00e9gulation, actions de maintenance\u2026) et \u00e9galement le comportement de l\u2019occupant.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-t-black-color\">Avez-vous le sentiment que la data peut venir jouer un r\u00f4le dans la <a href=\"https:\/\/www.deepki.com\/fr\/glossaire\/transition-energetique\/\" target=\"_blank\" rel=\"noreferrer noopener\">transition \u00e9nerg\u00e9tique<\/a> ?<\/mark><\/h2>\n\n\n\n<p><strong>LB :<\/strong> C\u2019est en effet une des grandes tendances du moment. Elle va de pair avec un changement de mentalit\u00e9s qui se traduit par <strong>une transition d\u2019une obligation de moyens vers une obligation de r\u00e9sultats.<\/strong> Je m\u2019explique. Pour appr\u00e9hender des ph\u00e9nom\u00e8nes aussi vari\u00e9s que complexes, les simples \u00e9quations et les simulations ne suffisent plus. Il faut de la donn\u00e9e, du concret !<\/p>\n\n\n\n<p>L\u2019approche physique a mis en \u00e9vidence, gr\u00e2ce \u00e0 la simulation, toute une s\u00e9rie de ph\u00e9nom\u00e8nes qu\u2019on avait du mal \u00e0 expliquer ou analyser tant ils \u00e9taient divers.<\/p>\n\n\n\n<p><strong>Les donn\u00e9es et les mod\u00e8les statistiques permettent de se substituer \u00e0 la connaissance des ph\u00e9nom\u00e8nes fondamentaux.<\/strong> Gr\u00e2ce \u00e0 eux, on peut pr\u00e9dire, anticiper, quantifier des ph\u00e9nom\u00e8nes sans \u00eatre oblig\u00e9s de comprendre pr\u00e9cis\u00e9ment leurs d\u00e9terminants. Cela nous a permis de repousser les limites. Mais l\u2019utilisation d\u2019une approche n\u2019exclut pas l\u2019autre. Ce sont des m\u00e9thodes tr\u00e8s compl\u00e9mentaires avec pour r\u00e9sultats une capacit\u00e9 \u00e0 anticiper, cerner au mieux les ph\u00e9nom\u00e8nes, pour avoir au final des mod\u00e8les pr\u00e9dictifs au service de l\u2019aide \u00e0 la d\u00e9cision, du dimensionnement, ou d\u2019\u00e9valuation de la performance.<\/p>\n\n\n<p style=\"text-align: right;\"><span style=\"color: #000000;\"><em>\u00c0 lire \u00e9galement :&nbsp;<a style=\"color: #000000;\" href=\"https:\/\/www.deepki.com\/fr\/blog\/loi-transition-energetique-video-decryptage-nouveaux-decrets-batiment\/\" target=\"_blank\" rel=\"noopener noreferrer\"> Loi sur la transition \u00e9nerg\u00e9tique : vid\u00e9o-d\u00e9cryptage des nouveaux d\u00e9crets pour le b\u00e2timent<\/a><\/em><\/span><\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-t-black-color\">Quels r\u00e9sultats observez-vous actuellement sur cet enjeu de <a href=\"https:\/\/www.deepki.com\/fr\/glossaire\/transition-energetique\/\" target=\"_blank\" rel=\"noreferrer noopener\">transition \u00e9nerg\u00e9tique<\/a> ?<\/mark><\/h2>\n\n\n\n<p><strong>LB :<\/strong> J\u2019ai la nette impression que l\u2019on peut mieux faire et que le chantier, en France, est devant nous.<\/p>\n\n\n\n<p>Gr\u00e2ce \u00e0 l\u2019utilisation de la data et \u00e0 la nouvelle fa\u00e7on d\u2019appr\u00e9hender les choses qu\u2019elle implique, <strong>nous commen\u00e7ons tout juste \u00e0 envisager de nouvelles solutions pour acc\u00e9l\u00e9rer la <a href=\"https:\/\/www.deepki.com\/fr\/glossaire\/transition-energetique\/\" target=\"_blank\" rel=\"noreferrer noopener\">transition \u00e9nerg\u00e9tique<\/a>.<\/strong> Mais en d\u00e9pit des effets d\u2019annonce sur la capacit\u00e9 \u00e0 faire des choses tr\u00e8s performantes, et bien que certains y arrivent, <strong>la r\u00e9alit\u00e9 est que les objectifs ne sont toujours pas tenus.<\/strong><\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-t-black-color\">Quelles sont les bonnes pratiques que vous recommandez ?<\/mark><\/h2>\n\n\n\n<p><strong>LB<\/strong> : Il ne faut pas se limiter dans l\u2019approche de la performance. Que l\u2019on soit en production ou en r\u00e9novation,<strong> il est important d\u2019avoir un dispositif de retour d\u2019exp\u00e9rience pour confronter la r\u00e9alit\u00e9 aux objectifs initiaux.<\/strong> La mise en place de cette boucle n\u00e9cessaire va acc\u00e9l\u00e9rer consid\u00e9rablement la progression du savoir-faire ! Elle est n\u00e9cessaire pour mettre en \u00e9vidence plein d\u2019erreurs majeures issues de fausses bonnes id\u00e9es. Il faut accepter que les techniques de construction traditionnelles ont leurs limites et se remettre en question en permanence.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/content.deepki.com\/fr_deepki_support_webinaire_formation_decret_tertiaire_mai?utm_medium=website&amp;utm_source=blog_cta&amp;utm_campaign=03_2022_FR_WEBINAR_FORMATION_DT&amp;utm_content=blog_article&amp;utm_term=lionel_bertrand\" target=\"_blank\" rel=\"noreferrer noopener\"><img decoding=\"async\" width=\"960\" height=\"540\" src=\"https:\/\/www.deepki.com\/web\/wp-content\/uploads\/2022\/11\/FR_CTA_DT_WEBINAR-4.png\" alt=\"\" class=\"wp-image-69907\" srcset=\"https:\/\/www.deepki.com\/web\/wp-content\/uploads\/2022\/11\/FR_CTA_DT_WEBINAR-4.png 960w, https:\/\/www.deepki.com\/web\/wp-content\/uploads\/2022\/11\/FR_CTA_DT_WEBINAR-4-300x169.png 300w, https:\/\/www.deepki.com\/web\/wp-content\/uploads\/2022\/11\/FR_CTA_DT_WEBINAR-4-768x432.png 768w, https:\/\/www.deepki.com\/web\/wp-content\/uploads\/2022\/11\/FR_CTA_DT_WEBINAR-4-80x45.png 80w, https:\/\/www.deepki.com\/web\/wp-content\/uploads\/2022\/11\/FR_CTA_DT_WEBINAR-4-260x146.png 260w\" sizes=\"(max-width: 960px) 100vw, 960px\" \/><\/a><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>Responsable de la division Innovation-D\u00e9veloppement au Centre Scientifique et Technique du B\u00e2timent (CSTB), Lionel BERTRAND partage en exclusivit\u00e9 pour Le Blog de Deepki sa vision du march\u00e9 de la r\u00e9novation et de l\u2019am\u00e9lioration de la performance \u00e9nerg\u00e9tique. Il nous donne \u00e9galement son point de vue sur l\u2019impact de l&rsquo;utilisation de la data sur le chantier [&hellip;]<\/p>\n","protected":false},"author":38,"featured_media":23,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"footnotes":""},"categories":[116,120],"tags":[],"class_list":["post-106","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-actualites","category-performance-environnementale"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>[ITW] Lionel Bertrand : \u201cEn France, le chantier de la r\u00e9novation \u00e9nerg\u00e9tique est encore devant nous\u201d - Deepki<\/title>\n<meta name=\"description\" content=\"Responsable de la division Innovation-D\u00e9veloppement au Centre Scientifique et Technique du B\u00e2timent (CSTB), Lionel BERTRAND partage 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