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About Tom Petrilli
Expertise
I can answer questions about residential and light commercial roofing. I really enjoy solving complicated problems. My expertise is in shingle, slate and traditional metals (copper, lead, terne, stainless) as well as single ply low slope roofing. I have also installed a considerable amount of synthetic slate.

Experience
I have been a roofer for 21 years, I've owned my own company for the past 13.

Organizations
The National Roofing Contractors Assoc and Virginia Association of Roofing Contractors

Education/Credentials
I have attended numerous manufacturer training programs as well as sought out experts in specialized work for instruction.

Awards and Honors
A+ rating from the Better Business Bureau, A rating from Angies List, highest mark for quality and value from the Washington Consumer Checkbook

You are here: Experts > Home/Garden > Home Improvement/Repair > Roofing > roof

Roofing - roof

Expert: Tom Petrilli - 11/10/2009

Question
Hi i am bidding a job to roof a very steep roof but that is not the problem . the house is a shaley
style . the roof is framed with 3x6 every two feet with 2x6 tung and grove bevel one side for sheathing then they put 2"styra foam on top of 2x6 then wood roof shingles. i have to remove the wood shingles and install asphalt roof shingles. if i put the roof shingles on top of styra foam i feel the nails will blow right throw the shingle and the foam. and if i install plywood on to of the foam will that be ok for the back side of the ply wood . can you help. thanks

Answer
Richard,
Ive only done one project like this. This was the material we used, it has plywood bonded to the insulation. You might want to look into this:

http://www.hpanels.com/pages/pdfs/Lit_Prod_Color/H-Shield-NB.pdf

Good luck with the job,
Tom

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