Recent Q&A

• HRV help

  Hello, House - 2 story, no basement, 2000 sq feet, 4 bedroom, 2.5 bath, Ductless heat pumps, ACH 1.9, Climate zone 6 I am in the process of planning my…

• HRV exhaust duct through garage

  Hello, I was wondering, is it okay to run an hrv/erv exhaust duct through a garage to the exterior? If so would it need to be enclosed in a drywall/fire…

• Ventilation options

  Hello I have completed some energy upgrades to my 1983 2 story slab on grade house in climate zone 6. My final blower door test revealed an ACH rate of…

• Is an HRV/ERV absolutely necessary?

  Hello GBA readers I have recently finished some energy upgrades to my 1983 house in climate zone 6 (southern ontario). Work included exterior rigid and attic insulation, air sealing, new…

• Opinions on my exterior options

  I have posted a few times regarding my situation and have been provided a lot of great information from GBA. I have not really been able to figure out what…

• Would a rainscreen be required?

  Hello, I would like to install 1.5" of mineral wool on the exterior before finishing with vinyl. I am pretty sure vinyl siding can be installed on foam insulation up…

• Ductless minisplit – completed Manual J

  Hello