General Questions
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Attic conversion knee walls
I have a 24' x 35' attic that has roof going all the way to floor but with steep pitch. I have t&g ply for the floors, but I am…
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Floor Insulation
I bought and am remodeling a house built in the 1920's with dirt floor vented crawlspace and an addition that was built in the 60's had to tear out and…
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Can subfloor breathe between Quietwalk and Rmax Thermasheath polyso
Hi all,We're in Zone 5, Northern California mountains, with very dry summers and variable-humidity winters (rain/snow raises humidity).We have a dirt crawlspace which we plan to put a vapor barrier…
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Ice and water shield
I'm doing a ventilated deep rafter cathedral.The main path for any drying would be in the ventilated cavity.So is there a risk to coving the entire roof in ice shield?Or…
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ceiling drywall bowing up
what could be causing the drywall in a small house with an ERV that is very tight to bow up between the ceiling joists ?
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Hybrid Insulation Zone 3 – Exterior vs. Interior Ratio
I'm building a new house in the Dallas TX and I want to use a hybrid insulation strategy of poly-iso and mineral wool batts, but I'm struggling to understand the…
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Dew point data
Someone posted here a few months ago a site where you could get 99th percentile dew point data. Now I can't find it.Does that rig any bells?
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Window jamb extensions
Hello,I have 2" RockWool exterior insulation, vertical furring strips, and horizontal furring strips and I will be using Hardie Panel on top of that. My windows are flanged and taped…
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HRV without using existing furnace fan?
Hello everyone,Following the sage advice in this forum, I have done a number of green energy upgrades to my house, including sealing the house really tightly, and switching my heating…
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Foam and Siding over Existing T1-11 Siding
Location Zone 3A OKC, OK. House constructed 1979. Wall details-5/8 Sheetrock-2/4 Wood Stud Fiberglass batt (Unsure if faced or not. I know areas I have demoed in interior walls separating the…