Venting if there is no soffit.....
I am in central NJ, the ridge vent was installed when the roof was done about 4 years ago because there is the ability to install venting in the front of the house if I took off the trim coil and vinyl soffit and drilled some holes in the old plywood soffit underneath. There is no soffit at all on the rear of the house and my only option would be pulling off the lower courses of shingles to install a smart vent, which I am not even considering.
I actually just got a quote on going with open cell spray foam insulation on the entire upstairs creating a completely sealed attic (well only the top 3 or so feet is actual attic, the rest is, or will be the wall of my bedroom) they said they just cover the inside of the ridge vent with plastic so the foam doesn't expand out the venting while curing.
The open cell foam may be the way I go, the house has a black roof in full sun all day and I think I will regret putting fiberglass and useless venting in there. I'm an electrician by trade and I've been in some attics with the foam, it amazed me how the attic was nearly the same temp as the living space below.
Last edited by Mr. Shed; 02-16-2011 at 06:35 PM.