roofing weight Articles

#39 – Metal Roof Installation: Should Shingles be Removed?

May 3, 2017

Should Shingles be Removed Before Installing a Metal Roof? If your home is presently roofed with asphalt shingles, you may be able to avoid the expense of tear-off and protect the environment by reducing landfill. Metal roofs are much lower weight than most other roofing materials. Aluminum roofing weighs around 50 pounds per 100 square… ( 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 )