How To Install Metal Roofing Over Shingles Step By Step

This is what it looks like when you install a steel shingle roof system over an existing asphalt shingle roof.

How to install metal roofing over shingles step by step. Codes vary so call your local building department to know how to install metal roofing over shingles properly code wise. Again start at the bottom and nail the shingles into place. July 14 2020july 14 2020 bsupple601. Whats involved in how to install metal roofing.

This is by far the most common way to install a metal roof. Place a sheet from top to bottom on a section of the roof. Use 14 inch metal wood screws to attach the metal sheets to the wood slat board base. When the felt is secured you can start laying the metal shingles.

Metal roofing sheets have to be installed one at a time. Install metal panels or shingles align the first metal roofing panel so that it overlaps the edging by 12 to 34 of an inch and is square to the roof line. 3 install 1x4 purlins down over the shingles before installing the metal roof the third way to install a metal roof over shingles is by applying 1x4 purlins over the shingle roof. Install metal roofing sheets.

Install the roofing screws vertically along each rib in the panel. Then work your way up to the top or center of the roof. Be sure the larger edge is laid so that the small edge of the next panel will overlap it. As long as the plywood under the shingle roof is in good condition this way can provide many benefits.