Recent Q&A

• Repair for collapsed garage floor

  Hi, I bought a house a few years ago (construction – 1968). I noticed a crack in the garage that had been patched with new concrete. The patch was now falling…

• Vapour barrier – XPS and batts?

  I'm in the process of redoing my bathroom. There was two inches paper facing batt insulation on plywood, which I removed. The stuff was full of holes created by mice…

• Condensation and insulation

  I insulated my attic with cellulose a few years ago. But before I did, I sealed all gaps using Great Stuff. Yesterday, I had to go in my attic to…

• Ridge vents with/or box vent?

  Hi,I bought a house a few years ago. My shingles are old, so I want to refoof. A contractor came to give me an estimate and he said that the…

• Continuous back-up?

  I am trying to understand the fire code here: http://www.cufca.ca/fire.php. I want to put up some hardboard to cover ridig foam in my basement walls. What does the code mean…

• Condensation on plexiglass?

  Hi, In fall-winter-spring, I have lots of condensation on my double-pane windows. After reading multiple sources on the Internet stating that condensation does not form on acrylic, I fastened a…

• Cellulose over 1/2″ drywall and 24″ o.c. furring strips

  Hi,