Recent Q&A

• WRB and air sealing on a log timber frame hybrid renovation

  我在plannin的早期阶段g a renovation on a log timber hybrid home. The structure is all round logs with 2x4 walls in between. The 2x4 wall assembly…

• Tile backer board for 24″ centres?

  Is there a tile backer board suitable for 24" centre studs? Everything I've found seems to be limited to 16" OC.

• Mold Growth on Minisplit Head

  It's left on a lot in summer and it looks like mold is growing on the diffuser blades. There's also some pale brown marks on the wall where it looks…

• How green is mineral wool insulation

  I thought I was settled on using Rockwool batts but as time goes on I question how green it really is. Competitors suggest it has a higher carbon footprint due…

• How high above my attic insulation should my ventilation be?

  New build, mid construction, I have raised heel trusses which measure around 18 inches to the underside of the sheathing and the plan is to have 14 inches of cellulose…

• HFO spray foam issues

  Has anyone heard of issues with keeping HFO spray foams hot enough to spray correctly? I was interested to hear from a reputable contractor who has tried a few brands…

• Real world soundproofing experiences

  As my framing nears it's end I'm still undecided on what level of soundproofing to adopt in my compact 980sq ft home. The layout is attached and the focus is…

• Installing foam on foundation interior in rain. Should I wait?

  My foundation is cured and backfilled and the plan was pour the crawlspace slab this week. One problem I did not anticipate was a weeks worth of rain in June...My…

• Poly under the sill plate

  I've seen a few projects use poly under the sill plate with traditional sill seal on top. Steve Baczek's passive house build featured on this website comes to mind.When does…

• Concrete additives for crawlspace scratch coat/rat slab reinforcing

  I'm considering using a fibre additive instead of wire mesh for reinforcing my ~2" crawlspace scratch coat/rat slab for logistical and practical site reasons at this time.Does anyone have any…