Can I Install a Standing Seam Roof Over Asphalt Shingles? | | Always | 11% | | In most cases | 38% | | In some cases | 22% | | Never | 16% | | Not sure | 11% | | | | | Question: Can I Install a Standing Seam Roof Over Asphalt Shingles? Top Answer (38% of 18 votes): In most cases.
Answer: In most cases
Explanation: It is often possible to install a standing seam metal roof over a single layer of asphalt shingles, but it depends on local building codes and the condition of the existing roof. Many installers use a properly designed underlayment system or furring strips to create a smooth, ventilated surface over the shingles.
However, the existing roof must be in good structural condition, and any moisture issues or damage should be addressed first. In some situations, a full tear-off is preferred or required to ensure proper installation and long-term performance. | | Mendoza Construction | Answer: In most cases
Explanation: The answer is, YES! One big advantage to metal roofing is that it is light weight, which makes it the perfect material to be installed over an existing shingle roof Depending on Roof Decking | | HOME SHIELD PRO'S ROOFING & SIDING | Answer: In some cases
Explanation: While not considered a "Best Practice" it and be done but the proper type of barrier must be installed between the metal and the shingles to prevent a galvanic reaction to occur. | | JPS-WNC llc | | | ProMatcher |
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