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Vapor Retarders for Foundation Walls
Should you use a polyethylene vapor retarder on the interior of a foundation wall?
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Seeking Quiet Heat Pump Water Heaters
Is noise part of the bargain for a HPWH?
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What to do With an Unused Chimney
Remove it entirely, take it down to the attic floor, or cap it—what is the best option?
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Going Above Prescriptive Code Insulation Values
How much is too much? Consider this rough cost-benefit analysis of adding extra cellulose insulation to an attic floor.
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Ventilating a Concrete Dome Home
Is there a viable solution that will provide adequate fresh air?
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Low-Slope Roof and Ice Dams
Can eave-to-ridge roof venting, vigilant air-sealing, and robust thermal control prevent ice dams in high-snow country?
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Insulating a Partially Finished Basement in a Cold Climate
Does it make sense to insulate the interior side of foundation walls with air-permeable fiberglass batts?
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Recurring Mold in the Attic
What is the source of moisture in this cold-climate vented roof assembly with cellulose insulation?
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Air-Sealing and Insulating an Existing Wall
What are the most effective air-sealing strategies and best insulation types for minimizing airflow through a north-facing wall?
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Considerations When Insulating With Dense-Pack Cellulose
Is netting and strapping the ideal method? What's the best drywall thickness? How can you minimize bulging?