|This ceiling could have had fiberglass - with minimum R value in the old rafters|
So we looked at several different options and finally decided on spray foam. Spray foam was twice the budget of fiberglass, but it will cover the entire roof, which is important when you have a hip roof with multiple dormers. This means the space behind the knee walls will be nice and toasty - keeping the first floor ceilings warm as well. And with an R value of 7 per inch, it gives us the best possible insulation value.
Ed Libby from T.E.A.M Insulation came out to do the job. It's a messy process with chemicals, so he needed a lot of PPE (personal protective equipment).
He suited up and showed me how it was done. Doesn't it look easy? I love watching this video - see how the foam expand on contact with the roof sheathing? And it heats up to 220 degrees!
So I gave it a try with Ed coaching me along. And quickly discovered, .....it's not so easy. He was able to contain all the spray into a tight pattern - I ended up with a sloppy mess. Thankfully he went back and fixed my handiwork :-)
It was a big job that took two days. And now that it's done? We couldn't be happier. As soon as you walk upstairs you notice the difference. The house feels tighter and warmer - but also much quieter. There is a sound insulation effect that is an added bonus.
|Foamed Hip Dormer|
So yes, we splurged on the foam insulation - but think it was the right decision! The future homeowners will really appreciate it. Now we just need to figure out how to balance our reno budget.