Rather than butt in on the other discussions, I would like to start a new on on a similar subject. I also have a hot second floor in the summer and cool in the winter even though it has fiberglass insulation. The rooms all have cathedral ceilings so I can not put more insulation in. Beside not enough fiberglass I am sure the mice have tunneled throughout the fiberglass further reducing its effectiveness.
My plan is to insulate my +100 year old farm house by taking off the tin roof and decking, removing all the fiberglass insulation, and sistering 2×4’s to the 8″ rafters. The cavities would be foamed, covered with 1/2 inch decking, then 1″ furring strips with another 1/2 inch deck. On top of that I would put new standing seam roofing. Screened vents would be installed at the bottom and ridge of the roof.
Am I crazy, any problems, has anyone done this before?
Imallthumbs
Replies
How much, in time and money, do you think this will take. I would love to do something similar but the costs are scary.
Thanx.
It seems excessive to me cuz i have a similar project in the final stages, and I approached it from the inside. Even tho' my roof is well past its prime, it still works ( 100 yr old terne metal) and I AM a roofer who could do it from the out side, but,I concluded it was better for me and my est. time frame/cash resources/ and available help, to gut the interior side.
I am glad I did...building up all the rakes and cornice and the 3 steep dormers woulda really been a chore.
This allowed me to sister along side the 4'' pole rafters and get a decent plane, install at my leisure the insul, and make other changes without feeling rushed.
Spheramid Enterprises Architectural Woodworks
You gotta be kidding me ..Jorge is @ what %? Now?
Without seeing the numbers, it's a tough call. But unless the roof is failing, or at the end of it's lifespan, it seems the approach you are taking might be effective, but certainly the long way around. Very expensive.
What is the roof condition, and have you run the numbers?
Jake Gulick
[email protected]
CarriageHouse Design
Black Rock, CT
Some of the other facts about this project that I did not have the time to include are that I am going to add on to the house next year and put on a painted metal roof so I want the old part of the house to match. I could gut the inside but I would have to haul sheetrock up the spiral staircase, a real pain when it is necessary to cut it into 2 x 8' sheets. Closets, walls, etc. make the job of doing a complete insulation job difficult.
I have not done the numbers. I could leave it as is but then I have to deal with continually rising energy costs. It appears that the foam will last longer than fiberglass and cellulous and do a better job throughout its lifetime so the extra cost should not be a big issue. I plan on doing much of the tearoff and roofing myself to hold down costs.
I"ll report back in when I get numbers together.
imallthumbs