Recent Q&A

• Sill gasket

  I'm currently planning on using an EDPM gasket under my sill plate (new construction). I'm also planning on using sprayed close cell to fill/seal the rim joist on the basement…

• Whole House Dehumidifier – Is it worth while?

  I'm building a new home in Climate zone 6 (central PA). It will be well insulated and air sealed. While I'm still wrestling with the ERV vs dedicated bath exhaust…

• 有个困难m with too much attic ventilation?

  As I finalize the soffit & vent design for my new home, I'm coming up with some out of balance numbers. The attic area is ~4200 sq ft (this include…

• Propane fired vs Heat pump HWH

  Has anyone seen any direct comparisons/reviews of using propane fired HWH (tank & tankless) vs a heat pump based HWH?

• Double Bubble for Underslab insulation

  I found a thread on GBA "discussing" the pros and cons of using foil based radiant barrier products for insulation of ducts and attic spaces. One of the foundation contractors…

• Confusion on Flash and Batt

  I know there has been a lot written and a lot discussed about flash and batt. I thought I understood the pros and cons. The most import design criteria is…

• Any updates on Huber Zip Wall R Sheathing?

  A while back I asked for opinions on my proposed insulation plan for a home I'm getting ready to build in PA - zone 6. The original plan was as…

• Valley Flashing Options?

  Per my roof installer, the roofing shingle I have specified (Certainteed Presidential) cannot be woven in the valleys. He says it voids the warranty. He says we have to go…

• Plan for exterior wall construction and insulation

  I am planning a new home in PA - zone 6. The options for insulation/exterior wall construction are mind numbing. My wall will be 2x6 single wall construction. I am…

• Attaching furring thru Foamboad

  Referencing GBA diagram "Plan detail // cement board lap siding // 1 1/2" rigid insulation" as a starting point, If I am attaching the furring thru the foam to the…