03 Jul '11, 9pm

Green Building Q&A: Tearing off my roof - reducing heat gain in my finished attic w/cathedral ceiling?

Greetings all - Thanks for maintaining such a fantastic forum. I've spent the past few hours reading and learning, and I'm seeking advice on my particular unique situation. The background - I have a 1944 Cape Cod-style house located in Portland, OR, zone 4C. The attic is a finished space with a cathedral ceiling which we use as our bedroom. The rafters are 2x4 with the cavities currently insulated with what is probably R11 fiberglass and no ventilation. The interior is finished with drywall which continues all the way to the peak of the roof - there's no "flat space" at the peak other than a ~6" board. The knee walls are also insulated with r11-13. There is also a small area beyond the kneewalls (under the lowest part of the roof) that has conventional insulation of fiberglass batts between joists. It's time to replace the roof - 2-3 layers of asphalt on cedar, all on top ...

Full article: http://www.greenbuildingadvisor.com/community/forum/gener...

Tweets

GPW: Breaking Ground Contracting Green Roof & Rooftop Garden

GPW: Breaking Ground Contracting Green Roof & R...

greenroofs.com 03 Jul '11, 9pm

Breaking Ground’s green roof is comprised of three main component ecosystems, including native wildflowers, shrubs, small ...

Vegetative Green Roof at Testa Produce a Site to Behold

Vegetative Green Roof at Testa Produce a Site t...

cleantechnica.com 05 Jul '11, 2pm

Roofmeadow says the 4.00-inch thick profile on the barrel roof has a maximum pitch of 43 degrees. The media on the barrel ...