Roofing Installation Articles

Install Over Low Slope Torch Down Roof

September 24, 2009

Q: I have a 1950’s home that is in need of new roof (estimated year left on old, very low slope torch down roof). I am interested in placing a metal roof on the home and am curious if it possible to install over the existing torch down assuming there are no leaks and sheathing… ( read more )

Cedar Shake Replacement

Q: I currently have a Cedar Shake shingle roof that is some twenty years old. Im considering having a metal shingle style roof installed. My concern is the under lay, and future repair to metal shingles. Is it appropriate to install the metal shingles over the cedar shingles? Once a metal shingle roof is installed… ( read more )

Install Metal Over Old Shingles

Q: I was given a quote to install a metal roof over the existing shingles. The shingles are very curled on parts of the roof. Is this an issue? The installer stated the curls would break off when they are walking on it during the installation. A: I suggest two things. 1) Always a layer… ( read more )

Plywood Beneath Metal Roofing?

September 4, 2009

Q: We are getting estimates on replacing the tin roof on our house. One contractor has given us an estimate with a plywood sheathing base under the metal and another without. He said that adding the sheathing would enhance the wind resistance and leak resistance of the roof. (We live in southeast Louisiana.)Another contractor has… ( read more )

Install Over Old Shingles

September 1, 2009

Q: We’re looking to replace our asphalt shingle roof with a 26 gauge galvalume metal roof. In your opinion should we have the old shingles removed or just have the metal place over the shingles? Also, if leaving the shingles should we have anything between the shingles and the wood? We live in central Texas… ( read more )

Structural Insulated Panels

August 31, 2009

Q: We are building a home with 8″ structural insulated panels (SIPS) for the roof decking (9/12) and want to use a Fabral SSR roof on top. As an engineer, I know the value of ventilation, but when asked, the roof & SIP manufacturers point at each other and say, ‘whatever he says’. Do I… ( read more )