The heart of our building system and our flagship product is the Ecocor PassivWall™. Built to exacting standards and pre-insulated in our shop, our walls are the most thermally effective, robust and resilient assemblies available.
The heart of our building system and our flagship product is the Ecocor PassivWall. Built to exacting standards and pre-insulated in our shop, our walls are the most thermally effective, robust and resilient assemblies available. Vapor Open to both the exterior and interior, insulated with 100% mineral borate treated, fiberized cellulose insulation, and air-sealed with advanced, zero-VOC membranes, tapes and adhesives from Europe; our walls are engineered with unique connections allowing for truly airtight, insulated construction joints, and unmatched design freedom.
Our proprietary methods of detailing the building’s exterior corners result in negative Psi (Ψ) values, meaning that not only are they free of thermal bridging, they are a net gain when performing heat loss calculations.
Our Ψ at building exterior corners is -0.068 W/mK (-0.039 Btu/h ft² °F) and at building interior corners the Ψ value is 0.026 W/mK (0.015 Btu/h ft² °F).
Airtightness is achieved primarily using Huber’s ZIP system sheathing as both the structural diaphragm and the air barrier. All seams are taped with Pro Clima’s Tescon Vana tape, an 8-Perm, zero-VOC acrylic-adhesive product originally designed for the aerospace industry. These tapes are tested under accelerated conditions to remain effective for at least 100 years. That's 3 generations. In addition to taping the seams, we also tape every fastener, to ensure a high level of air tightness and performance over the life of the building. Where panels meet on site, before taping the joints we also run a bead of Pro Clima’s Contega HF, a zero-VOC flexible adhesive sealant.
On the interior side of the wall assembly is a structural layer that serves as a service cavity, allowing for mechanical and electrical work to be completed conventionally before being insulated with mineral wool batts and finished with drywall, wood or the interior cladding of your choice. Because the air barrier is located within the wall, making the interior cladding (typically drywall) airtight is not necessary.