Roofing/Expert Profile

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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 in the area

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


The National Roofing Contractors Assoc and Virginia Association of Roofing Contractors


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

Average Ratings

Recent Reviews from Users

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    K = Knowledgeability    C = Clarity of Response    P = Politeness
Carol04/24/15101010I would like to thank Tom for .....
James04/16/15101010After I asked this question I went .....
Bill03/16/15101010Thanks Tom!
rose 11/29/14101010Thank you
John09/24/13101010Response was clear and concise and went .....

Recent Answers from Tom Petrilli

2016-06-04 Roof Adhesive Smell 9 Months Later:

Sounds like they may have spilled some glue- when applying adhesive to the membrane and insulation the installer will generally use a thin coat on each. Once the adhesive has dried the surfaces are mated

2016-03-14 asphalt shingles protection:

When shingle roofs are first installed they go through a period of shedding granules;  this only lasts for a few months and then the roof will enter a long period where the shedding stops.    There is

2015-04-24 humps in rooof:

Hello Carol,      His initial application and his attempt at a remedy are both failures.  Your roof should not have fasteners placed through the shingles to hold down plywood that wasn't properly installed

2015-04-14 New roof problems:

These questions are impossible to answer without seeing the job; but from what you've said it doesn't sound good.     My best advice would be to hire a local roofing contractor and pay him to for a written

2015-03-15 40 year old flashing:

The answer is no, all flashings should be replaced when installing a new roof but there can be exceptions.   If the existing flashings are 20oz copper, TCSII, or stainless steel then everything will probably


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