Expert Exchange Q&A
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Cutting channels in EXP insulation board to mimic a dimple mat for cement basement floor: Will this work?
I am looking for advice on the best way to reduce humidity seeping up from my unfinished basement floor of my large, Second Empire Victorian house in Western Massachusetts that…
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Cold climate slab on grade
hello all, building a home in climate zone six a, relatively high water table, building slab on grade because we cannot dig a basement. my Builder wants to use precast…
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Cottage HVAC design approach
We are building a 1,300 sq.ft. cottage and would like expert advice on the best strategy to heat and cool It is a one story home with a low crawl…
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European Windows- OKNOPLAST
Hello there. I am a builder of high-performance homes in Minneapolis area. I have developed 5 Passive homes in the last 3 years and used Access Windows out of Canada.…
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Open cell spray foam—water damage
Hi everyone, I could use some guidance. I’ve been dealing with serious indoor air quality issues in my custom-built home since day one. The house is two years old,…
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Fire rating increase with Denslgass over OSB – am I in for a drying/perm problem?
In planning a wall assembly on a new home, we're tasked with adding some fire resistance to the wall assembly while not significantly expanding the wall thickness. By adding a…
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Climate zones 6,7, & 8 – Attic kneewalls encased in spray foam. Help needed
Hello everyone. I inspect homes and produce residential construction related educational content in Alaska's climate zone 8. Occasionally I come across situations that I'd be very appreciative of input. This…
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small office cabin hydronic heating with air-to-water heat pump
Hi,I am building a 420 ft2 home office cabin that will also serve as a sleeping cabin when we have guests in our main house. In the main house I…
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Can cross-wiring in a Mitsubishi multi-split system cause evaporator coil failure?
I'm seeking expert opinions on whether a cross-wiring installation error in a Mitsubishi multi-split system could lead to evaporator coil failure. Here are the key details:1. System: Mitsubishi multi-split with…
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Consolidating multiple exhaust vents
We're preparing to begin our mechanical rough in on a new construction home in climate zone 6a. Between make-up air and exhaust, we will need 7 penetrations, and this is…