Standing Seam Roof Over Shingles

In contrast steel shingles are small panels installed in horizontal rows much like other shingles.

Standing seam roof over shingles.

Mcelroy metal has introduced a method for installing standing seam metal roofing directly over asphalt shingles without a tear off. Standing seam kynar 500 coated aluminum or steel. Standing seam metal roofing is defined as a concealed fastener metal panel system that features vertical legs and a broad flat area between the two legs. In a standing seam roof long single panels run vertically all the way from the eave to the ridge.

The main challenges when installing a metal roof directly over shingles with no underlayment are clip alignment and abrasion on the underside of panels. Architectural and premium shingles. Better steel shingle systems like the one shown install over a framework of 2x2s. Standing seam roofs are a little better than other types because the fasteners are hidden.

Both field locked and snap locked panels the overall installation cost is 950 to 1 550 per square. There are two main reasons. It s also described as having raised seams or vertical legs that rise above the level of the panel s flat area. First of all if you install a standing seam metal roof over asphalt shingles there will be a so called telegraphing effect where shingles can punch horizontal lines in standing seam panels.

Unlike steel and aluminum shingles standing seam panels should not be installed over the existing asphalt shingles. I would say at least every 10 years one should refasten the roof or dope the screw heads.