Recent Q&A

• Detailing the Tyvek house wrap at window with Dudley boxes and exterior foam

  The Dudley boxes have a 6" wide face frame (3/4" thick like the furring strips) to accomodate 4" wood face trim and a J channel. Please point me to the detail…

• Can I leave a layer of tyvek over the 1st course of 1 1/2 foam when adding another course?

  I got a surprise when i stripped the vinyl siding off my walls..I expected XERO exterior foam but found 1 1/2" covered by a layer of tyvek. Q- Is there…

• 闪光的细节问题在里面outside corners (3 inch foam)

  I've stripped my exterior walls to the plywood and am about to install the metal flashing at the bottom of the wall... with 3 inches of foam and 3/4 inch…

• Re: (metal) flashing a flanged window set in 3″ of foam…trying to get this right!

  Zone 7 Kenora NW Ontario CanadaI am ready to get to work on my first wall(of my reno) , it is stripped to the plywood and the existing windows are…

• Minimum foam on the exterior of 2×6 wall…has it changed recently?

  My daughter lives in a wood framed condo. It has 2x6 exterior walls with fiberglass bat insulation in the joist bays. There is 6 mil poly on the interior side…

• Fastening Deck to Ledger Board

  Hi, I am a long time reader and was (until last year) a member... but I'm back. I'm in zone 7 (NW Ontario Canada) I'm ready to tear off the…

• Trouble using Manual J calculator, I could use some help

  I have a couple of companies quoting ASHP for my house is Kenora Ontario, Canada (zone 7). I have not heard back from all yet but would like an accurate…

• I would appreciate a review of an air-source heat pump quote

  zone 7 Kenora Ontario, Canada. I asked for a quote for an ASHP unit that would work for the time being as well as in the near future when the…

• Pellet stove to heat a workshop?

  I have a 24 x 30 garage that has been converted into a year round workshop. 2 x 6 construction (16" centers: I didn't know any better when I built…

• Tongue-and-groove OSB over 3/4″ foam problem

  I'm helping a friend with a basement remodel.. Winnipeg, Manitoba Canada zone 7. 1040 sq/ft basement, concrete walls and floor. no exterior insulation. We are gluing (PL300) 2.5 inches EPS…