Installing Metal Roof Over Shingles On Shed

Install with 1 4 inch metal wood screws at a distance of every two feet.

Installing metal roof over shingles on shed.

If you want to install steel over asphalt your best choice for installing metal roofing is to use a steel shingle system like the one shown instead of the more common and more expensive standing seam steel. Then cover the entire roof with a layer of insulation and secure it with a staple gun. Be sure the larger edge is laid so that the small edge of the next panel will overlap it. You can install a metal roof on any shed roof fairly easily except a barn style gambrel roof with overhang.

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. Step 1 measure the roof to determine how much metal you will need. Installing metal roofing over shingles is the best solution. By removing the old roof before the new roof s installation you are able to give the underlayment a thorough inspection to ensure there are no damages that could cause leaks or other issues with your new roof.

Install the metal trim. This is because the overhang has a negative angle and needs careful flashing to prevent that joint from leaking. Use notching scissors to notch the metal in the middle so that it will bend over the ridge. Align the first metal roofing panel so that it overlaps the edging by 1 2 to 3 4 of an inch and is square to the roof line.

Metal roofs look great and will last forever. Installing a metal roof over shingles can also result in an increased chance of trapped water vapor and moisture between the new roof and old roof resulting in new mold and rot. Your metal trim will go along the roof s edges as well as the top ridge. Before you install metal roofing repair any damage to the wood under the shingles.

This is by far the most common way to install a metal roof. But it can still be done as demonstrated in these photos. Install the roofing screws vertically along each rib in the panel. Either way a metal roof can add years to a shed because it is impervious to bugs and animals and it weathers well in every climate.

Lay the new metal roof right on top of an old roof or remove the old one first. The metal used for the roof can be tin copper aluminum or steel. Next use 1 inch nails to secure some metal edging to the perimeter of the roof.