How Do I Install A Metal Roof Over Shingles

When you install the panels you will have to cut the valleys by hand.

How do i install a metal roof over shingles.

This is what it looks like when you install a steel shingle roof system over an existing asphalt shingle roof. Overlap the rises and dips if using corrugated sheets or lay flat sheeting with a slight vertical overlap. Metal roof over shingles condensation metal roofs must be laid flat on a vapor barrier because steel will condensate if there s any air space underneath it. Make a slat board base on top of the shingles.

Also be careful not to scratch the colored surfaces of the metal. A benefit to doing it this way is that you can see if there is any rotten plywood that needs to be replaced before installing the new roof. Begin laying the metal sheets from the bottom to the top of the roof. Install the metal edging.

Can i install a new metal roof over shingles. The low weight of metal roofing is one thing that encourages this. Steel shingles weigh about 1 4 what asphalt shingles weigh and aluminum shingles weigh about 1 8 what standard shingles weigh. 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.

If you must climb onto the roof to measure the space be. Install the roofing screws vertically along each rib in the panel. Screw the first sheet in the center as well as the edges. How to install a metal roof over shingles hunker.

The vast majority of installations of the metal roofing systems produced by my company are over existing shingles. Always try to measure from the ground first in order to keep yourself safe. Install your metal edging around the perimeter of your roof. Be sure the larger edge is laid so that the small edge of the next panel will overlap it.

Another added benefit is that the layers of your old roof will further insulate your home. A steel roof is a lifetime investment lasting 50 years or more if it s a good one. Asphalt roofs typically last 20 to 30 years depending on the installation and shingle quality. Yes you can and by doing so you save in the labor and hassle of tearing off the old roof and you won t be contributing to filling our landfills.

1 remove the shingles before installing the metal roof the first way to install a metal roof over shingles is by completely removing the old shingles before installing the new metal roof. Put the steel down directly on a vapor barrier. Screw the metal sheets into the slat board with a wood screw every 2 feet along the edges. 5install metal panels or shingles.

It doesn t matter if the air space is a half inch or six inches because the condensation factor will remain the same. Before you can begin to update your roof you will have to get an accurate.