Debated between spray foam and batt insulation for my garage attic...

I went with spray foam after getting a $2200 quote from a local Edmonton company and honestly my garage stays way warmer now but I'm worried about the long term ventilation issues has anyone else dealt with moisture problems after spray foaming?

2 comments

2 Comments

bettys511mo ago

I had a buddy in Calgary who sealed his garage roof with spray foam two winters ago and he got some mold spots up there by spring. He ended up drilling a few small vents near the ridge to let the air move without losing all the heat. I'd say keep an eye on the humidity levels especially after big snow melts and maybe toss a dehumidifier in there just to be safe.

thea8571mo ago

Wait @bettys51 your buddy basically turned his garage into a mold terrarium? lmao