Ask Todd Miller *Metal Roofing Expert

Tag: re-roofing

Install Over Old Shingles

Filed under: Misc, Roofing Answers, Roofing Installation

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 […]

Metal Over The Old Roof

Filed under: Misc, Roofing Answers, Roofing Installation

Q: I currently have 2 layers of shingles on my house. I live in south western KY and the house is subjected to lots of thunderstorm with high winds, hail, and heavy rains. We also have several tornadoes. My roof has a lot of wind lift from the last storms that went through and now […]

Roof Algae: What Is That Stuff On My Roof?

Filed under: Articles, Misc

As asphalt and fiberglass shingles age, they can sometimes develop streaks of discoloration. This is especially prevalent in damp climates or shaded areas. While these streaks are often seen as a sign of aging of the roof, they are actually biological growth. As dirt accumulates on standard shingles over time, it gets stuck in the […]

Finding a Metal Roofing Manufacturer

Filed under: Misc, Roofing Answers

Q: I am very interested in having a steel roof installed on our home. We are looking at a local company that carries a manufacturer called Akzo Nobel. I did not see them listed in your manufacturers, so I was wondering if their products are any good? It says they offer a 40 year paint […]

Can Metal Be Installed Over Two Layers?

Filed under: Misc, Roofing Answers, Roofing Installation

Dean wrote and asked me: Q: My cottage has one layer of shingles. But my detached garage has two layers. They are getting very old with mold growing on them and are curling in spots. Is it advisable to install metal shingles over the existing layers of asphalt singles? I responded: A: The low weight […]

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