{"id":162437,"date":"2026-08-08T09:00:00","date_gmt":"2026-08-08T07:00:00","guid":{"rendered":"https:\/\/www.immo-invest.ch\/?p=162437"},"modified":"2026-08-06T14:56:09","modified_gmt":"2026-08-06T12:56:09","slug":"genfer-umweltlabels-verlieren-auf-der-baustelle-schaerfe","status":"publish","type":"post","link":"https:\/\/www.immo-invest.ch\/fr\/genfer-umweltlabels-verlieren-auf-der-baustelle-schaerfe\/","title":{"rendered":"Les labels environnementaux genevois perdent de leur force sur les chantiers"},"content":{"rendered":"<p>Le probl\u00e8me r\u00e9side dans le r\u00e9gime de contr\u00f4le. \u00c0 Gen\u00e8ve, les labels environnementaux et les programmes relatifs aux mat\u00e9riaux dans le secteur du b\u00e2timent s&rsquo;appuient souvent sur des dossiers, des d\u00e9clarations et des justificatifs fournis par les participants au projet. Les contr\u00f4les syst\u00e9matiques sur place des produits effectivement install\u00e9s sont nettement plus rares. Il en r\u00e9sulte donc un \u00e9cart, pr\u00e9cis\u00e9ment entre les promesses formul\u00e9es lors de la conception et la r\u00e9alisation des travaux.<\/p>\n<p>La situation devient particuli\u00e8rement d\u00e9licate lorsqu\u2019il s\u2019agit de substances susceptibles de nuire \u00e0 la qualit\u00e9 de l\u2019air int\u00e9rieur. Les compos\u00e9s organiques volatils (COV) et le formald\u00e9hyde sont depuis longtemps un sujet de pr\u00e9occupation dans le canton de Gen\u00e8ve. C\u2019est ce que montre le programme cantonal THQMAT, qui guide les ma\u00eetres d\u2019ouvrage vers des prescriptions relatives aux mat\u00e9riaux et propose, avec le certificat \u00ab Low-COV \u00bb, une distinction qui n\u00e9cessite des mesures de l\u2019air int\u00e9rieur \u00e0 la fin des travaux.<\/p>\n<p><strong>Des mesures plut\u00f4t qu\u2019un simple contr\u00f4le sur papier<br \/><\/strong>Le certificat \u00ab Low-COV \u00bb du canton n\u2019est d\u00e9livr\u00e9 qu\u2019apr\u00e8s des mesures de la qualit\u00e9 de l\u2019air int\u00e9rieur \u00e0 la fin des travaux. Selon le canton, ce sont notamment la quantit\u00e9 totale de compos\u00e9s organiques volatils et le formald\u00e9hyde qui sont contr\u00f4l\u00e9s. C\u2019est pr\u00e9cis\u00e9ment ce mod\u00e8le qui met en \u00e9vidence ce qui fait d\u00e9faut \u00e0 de nombreux labels de durabilit\u00e9 g\u00e9n\u00e9raux. Sans mesure ni contr\u00f4le rigoureux sur le chantier, il est difficile de savoir si les mat\u00e9riaux d\u00e9clar\u00e9s ont effectivement \u00e9t\u00e9 utilis\u00e9s et si la qualit\u00e9 de l\u2019air promise est atteinte dans le b\u00e2timent achev\u00e9.<\/p>\n<p><strong>Les normes existent, mais leur application reste le maillon faible<br \/><\/strong>En Suisse, la norme SIA 382\/5 fournit des bases pour la conception, la r\u00e9alisation et l\u2019exploitation de la ventilation dans les b\u00e2timents r\u00e9sidentiels. La Conf\u00e9d\u00e9ration renvoie \u00e9galement \u00e0 des recommandations visant \u00e0 garantir un air int\u00e9rieur sain dans les b\u00e2timents. Cela ne r\u00e9sout toutefois pas automatiquement le probl\u00e8me de l\u2019application sur le chantier. Lorsque les labels reposent principalement sur des documents et que les contr\u00f4les ne sont effectu\u00e9s que de mani\u00e8re ponctuelle, les investisseurs et les futurs propri\u00e9taires s\u2019exposent \u00e0 un risque de r\u00e9putation et de responsabilit\u00e9 d\u00e8s que des probl\u00e8mes li\u00e9s \u00e0 la sant\u00e9 ou aux mat\u00e9riaux apparaissent apr\u00e8s la remise des cl\u00e9s.<\/p>\n<p><strong>De nouvelles r\u00e8gles accentuent la pression<br \/><\/strong>\u00c0 Gen\u00e8ve, la r\u00e9cente r\u00e9glementation relative \u00e0 l\u2019empreinte carbone des mat\u00e9riaux de construction g\u00e9n\u00e8re une pression suppl\u00e9mentaire. Le r\u00e8glement cantonal exige en principe, pour les nouvelles constructions importantes, un bilan conforme \u00e0 la norme SIA 390\/1 ; pour les b\u00e2timents publics, des valeurs limites contraignantes s\u2019appliqueront en outre \u00e0 partir de 2027. L\u2019importance des justificatifs de mat\u00e9riaux respectueux de l\u2019environnement ne cesse donc de cro\u00eetre. Plus le bilan climatique, les exigences sanitaires et les labels environnementaux se rapprochent, moins un simple dossier \u00ab vert \u00bb suffit. Ce qui devient d\u00e9terminant, c\u2019est ce qui est r\u00e9ellement mis en \u0153uvre sur le chantier et mesur\u00e9 au final dans le b\u00e2timent.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u00c0 Gen\u00e8ve, les nouveaux quartiers et immeubles sont de plus en plus souvent titulaires de certificats \u00e9cologiques. Pourtant, c&rsquo;est pr\u00e9cis\u00e9ment l\u00e0 o\u00f9 les mat\u00e9riaux sont mis en \u0153uvre et o\u00f9 les \u00e9missions sont g\u00e9n\u00e9r\u00e9es que les contr\u00f4les restent insuffisants. Cela accentue la pression sur les ma\u00eetres d&rsquo;ouvrage, les concepteurs et les autorit\u00e9s pour qu&rsquo;ils v\u00e9rifient enfin de mani\u00e8re rigoureuse le respect des engagements environnementaux jusqu&rsquo;\u00e0 la r\u00e9ception des travaux.<\/p>\n","protected":false},"author":2,"featured_media":162438,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"pmpro_default_level":"","_surecart_dashboard_logo_width":"180px","_surecart_dashboard_show_logo":true,"_surecart_dashboard_navigation_orders":true,"_surecart_dashboard_navigation_invoices":true,"_surecart_dashboard_navigation_subscriptions":true,"_surecart_dashboard_navigation_downloads":true,"_surecart_dashboard_navigation_billing":true,"_surecart_dashboard_navigation_account":true,"inline_featured_image":false,"_monsterinsights_skip_tracking":false,"footnotes":""},"categories":[22699,47523,22357,56027],"tags":[4192,2685,872,3931,60970,60971,2002,60972,60973],"class_list":["post-162437","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-durabilite","category-genf-fr","category-industrie-du-batiment","category-planification-developpement","tag-baumaterialien-fr","tag-genf-fr","tag-immoinvest-fr","tag-immonews-fr","tag-innenraumluft","tag-low-cov","tag-news-fr","tag-thqmat","tag-umweltzertifikate","pmpro-has-access"],"acf":{"bild_mit_ki_erstellt_worden":["Ja"],"lead":"\u00c0 Gen\u00e8ve, les nouveaux quartiers et immeubles sont de plus en plus souvent titulaires de certificats \u00e9cologiques. Pourtant, c'est pr\u00e9cis\u00e9ment l\u00e0 o\u00f9 les mat\u00e9riaux sont mis en \u0153uvre et o\u00f9 les \u00e9missions sont g\u00e9n\u00e9r\u00e9es que les contr\u00f4les restent insuffisants. Cela accentue la pression sur les ma\u00eetres d'ouvrage, les concepteurs et les autorit\u00e9s pour qu'ils v\u00e9rifient enfin de mani\u00e8re rigoureuse le respect des engagements environnementaux jusqu'\u00e0 la r\u00e9ception des travaux.","autor":"","ort":"","bildunterschrift":"","zusammenfassung":"","bild_im_grid":false,"gallerie":"","newsim":"3570"},"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.1.1 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u00c0 Gen\u00e8ve, les nouveaux quartiers et immeubles sont de plus en plus souvent titulaires de certificats \u00e9cologiques. 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