Thermal breaks for window bucks for PHIUS certified
Green Building Advisor
by killix
55m ago
Hi Guys,I am building a PHIUS-certified house in Canada as a self-build project.I am finalizing the design for the window installation and I am encountering some difficulties.My wall is about ..read more
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Help finding temperature data
Green Building Advisor
by jollygreenshortguy
7h ago
IRC2018 defines an insulation ratio for condensation control in unvented roofs.  In note B of Table R806.5 it says, "Alternatively, sufficient insulation shall be installed directly above the structural roof ..read more
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Attached Garage – Vented or Unvented Attic?
Green Building Advisor
by Yanniktk
7h ago
I am working on designing my house and the garage will share one wall with the main house. The main house will have all unvented attics. The obvious answer is that ..read more
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Rigid insulation options
Green Building Advisor
by Skilak24
7h ago
Hi, I am hoping for some advice on insulation questions. I live in coastal (wet) South Central Alaska, zone 6, and am building a 1,200 sq ft, two-story house (one ..read more
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Using window fan in finished attic to exhaust hot air
Green Building Advisor
by user-7828891
9h ago
We live in a large (3000sq ft), old (1907) home in Northern Kentucky. Our house has three finished levels and an unfinished basement. In the summer, our A/C (Daikin Fit ..read more
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Ventilation for musty/humid concrete bunker?
Green Building Advisor
by leon_g
12h ago
Our house's basement has an original cold war era bunker with concrete floor, ceiling, and walls, and no insulation or heating.  The bunker has a door connecting it to other ..read more
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Best way to insulate small bedroom
Green Building Advisor
by scv900
15h ago
We have a 1925 colonial in New England (Zone 5), and we had cellulose blown in most of the walls when we moved in. In one small bedroom, they ran ..read more
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Vapor Retarders for Foundation Walls
Green Building Advisor
by Chuck Bickford
21h ago
Should you use a polyethylene vapor retarder on the interior of a foundation wall ..read more
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Longevity of window films in triple pane IGUs?
Green Building Advisor
by AndyBower
1d ago
https://buildingscience.com/sites/default/files/migrate/pdf/PA_Foam_Shrinks_FHB.pdfIn this FHB article, Lstiburek writes:"Window film is a poor substitute for the right glazing at the time of the deep-energy retrofit, we used the best windows we could buy ..read more
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What do you make of this roof?
Green Building Advisor
by DCcontrarian
1d ago
I've been asked to work on this house and I'm mulling different ideas to improve the energy efficiency while maintaining the character.It was built circa 1967. It was built as ..read more
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