re-roofing Articles

Low-Pitch Roofing

September 19, 2010

Q: We are re-roofing our Colorado mountain cabin. There is a large portion of the roof that is virtually flat and has, historically, been the source of much leakage. It was covered a year ago by new asphalt. We are now planning to install a metal roof. Is metal a good choice for this low-pitch… ( read more )

Going Over Old Roofs (Roofing Weight)

December 15, 2009

Q: “I hear differing opinions on installing metal over old shingles. Can the metal be too much roofing weight on a home?” A: Most metal roofs weigh from 40 pounds per square (aluminum) up to maybe 145 (for stone coated steel). A square is 100 square feet. Asphalt shingles on the other hand weigh from… ( read more )

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 )

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 )