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Hi there, Climate zone 7 here. I’m building a 900qft house on a remote property. Off-grid, solar and propane powered. I’ll be using a mix of hydronic heating and wood stove to heat the house. Because of the >/= 400 cfm range hood, and my gas dryer, and the lack of outside air kit to […]
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Green Building Blog What happens when a design team commits to a vapor-open, low-carbon, petrochemical-free building envelope? The Cape Cod Hemp House offers answers. By Murrye Bernard | December 17, 2025 Project Introduction and Goals Set within the densely built coastal neighborhoods of Harwich Port, Massachusetts (Climate Zone 5A), the Cape Cod Hemp House is […]
Doing a remodel on our house in Sacramento Valley, California (climate zone 3b), and making a conditioned/unvented attic with a vapor diffusion port. HVAC system will have dehumidifier and will monitor attic humidity and set dehumidifier to operate/maintain RH in the attic in the 35 – 40 RH range in the fall and winter. Roofer […]
You only insulate partitions (walls or ceilings) that divide spaces that will be kept at different temperatures. In a typical residential setting, this means you insulate the entirety of the “building envelope”, which is all of the walls/ceilings that have outdoor air on one side (i.e. all of the exterior walls, any attic floors or […]
Hi All, Currently remodeling / redesigning an unvented assembly that had water intrusion issues (leaky roof, and / or incorrect insulation). One end of the roof (4:12 pitch) ends outside in closed soffits, while the other end of the cathedral ends in the interior of the house (over a kitchen) where it meets a small […]