The attic space is full of paper-backed insulation and cardboard covering the walls. It has got to go. I spoke with a contractor friend and he gave me some advice on insulating. The other option could have been spray foam insulation but... again, I've got more time than money. This link describes the process-
http://www.soundhome.com/qa/insulation-energy/insulating-2x4-rafters
Summarized it here:
Q: We are in the process of refinishing the upstairs of our 1920's Cape Cod style home. The rafters are 2x4s with no insulation of any type. There are no soffit vents either. I am considering using foam insulation boards between each rafter (leaving an 1 1/2" air gap) adding soffit vents and a ridge vent. Does this sound like a wise plan?
A: I think that you are on the right track. I would use 2" of polyisocyanurate foam board between the rafter and the 1" or more attached to the bottom of the rafters... The 1 1/2" continuous air gap is important. You should have soffit vents at the bottom and a continuous ridge vent at the top...
I already have the soffits in place but there was no airspace.
This is the view looking up, into the attic space above the ceiling. The absolute worst part of this job is removing this clump of loose insulation to allow the airflow. I use a stick to poke it loose and then get out of the way. Rinse and Repeat...
Here you can see someone cut through the rafter to allow passage of the vent stack. Wonder what is holding up the roof here?
I just did half of this side the attic yesterday. It was a huge, black, itchy, nasty mess.
It looks like the roof leaked at one time, those wet looking spots are dry. Here are the stacks of the old rock wool insulation.
And then it was all bagged up and ready to go out to the trash.
1 comment:
When you decide to cover the roof with the Spray Foam Roofing , make sure that the climate is dry. You do not want your roof to be very wet and damp, when you start working, because it might interfere with your work and high performance coatings.
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