{"id":5120,"date":"2026-08-28T00:54:30","date_gmt":"2026-08-28T04:54:30","guid":{"rendered":"https:\/\/groupescp.ca\/faq-items\/what-is-a-vapour-barrier-or-vapour-control-layer\/"},"modified":"2026-08-28T00:54:30","modified_gmt":"2026-08-28T04:54:30","slug":"what-is-a-vapour-barrier-or-vapour-control-layer","status":"publish","type":"avada_faq","link":"https:\/\/groupescp.ca\/en\/faq-items\/what-is-a-vapour-barrier-or-vapour-control-layer\/","title":{"rendered":"What is a vapour barrier or vapour-control layer?"},"content":{"rendered":"<p>A vapour-control layer helps manage the diffusion of water vapour through building assemblies. Its appropriate location and characteristics depend on the wall or roof assembly and environmental conditions. Vapour control should be considered together with insulation, air control and moisture management.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>A vapour-control layer helps manage the diffusion of water vapour  [&#8230;]<\/p>\n","protected":false},"author":3,"featured_media":1948,"menu_order":0,"comment_status":"open","ping_status":"closed","template":"","format":"standard","meta":{"_yoast_wpseo_focuskw":"Building Envelope","_yoast_wpseo_title":"BUILDING ENVELOPE | Groupe SCP is perfectly suited for Envelope Inspection, Assessment and Diagnostic Services, discover our FAQs.","_yoast_wpseo_metadesc":"BUILDING ENVELOPE | Groupe SCP is perfectly suited for Envelope Inspection, Assessment and Diagnostic Services, discover our 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