Metal Roofing Installation Over Shingles

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.

Metal roofing installation over shingles.

In a standing seam roof long single panels run vertically all the way from the eave to the ridge. However you should only install a metal roof over shingles if you have less than four layers of shingles on the roof. Building officials in some areas will only allow a re roof over one layer of shingles while officials in other places may allow you to place the roof over two layers of shingles. Be sure the larger edge is laid so that the small edge of the next panel will overlap it.

However you ll want to check with your local building department before you make any decisions. Steel shingles weigh about 1 4 what asphalt shingles weigh and aluminum shingles weigh about 1 8 what standard shingles weigh. The low weight of metal roofing is one thing that encourages this. 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.

Can i install a new metal roof over shingles. 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. 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. The vast majority of installations of the metal roofing systems produced by my company are over existing shingles.

In a standing seam roof long single panels run vertically all the way from the eave to the ridge. 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. 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. Yes you can install a metal roof over shingles.

Another added benefit is that the layers of your old roof will further insulate your home. A metal roof is an alternative to a shingle covered roof but a metal roof can actually be installed over shingles.