How Do I Install A Metal Roof Over Shingles

How to install a metal roof over shingles hunker.

How do i install a metal roof over shingles.

Overlap the rises and dips if using corrugated sheets or lay flat sheeting with a slight vertical overlap. Always try to measure from the ground first in order to keep yourself safe. 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.

Install the roofing screws vertically along each rib in the panel. Before you can begin to update your roof you will have to get an accurate. A steel roof is a lifetime investment lasting 50 years or more if it s a good one. Screw the metal sheets into the slat board with a wood screw every 2 feet along the edges.

Make a slat board base on top of the shingles. Also be careful not to scratch the colored surfaces of the metal. Put the steel down directly on a vapor barrier. 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.

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. Install your metal edging around the perimeter of your roof. If you must climb onto the roof to measure the space be. Be sure the larger edge is laid so that the small edge of the next panel will overlap it.

Begin laying the metal sheets from the bottom to the top of the roof. When you install the panels you will have to cut the valleys by hand. 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. You will need to lay some 1 by 4 inch pine boards lengthwise every two feet on your roof.

Install the metal edging. 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. Measure the length width and rise of one section your roof. The low weight of metal roofing is one thing that encourages this.

Can i install a new metal roof over shingles. The vast majority of installations of the metal roofing systems produced by my company are over existing shingles. Steel shingles weigh about 1 4 what asphalt shingles weigh and aluminum shingles weigh about 1 8 what standard shingles weigh. You can pre measure closely and install them as you go along or you can cut the panels close leaving out some of the screws and then come back later.

Asphalt roofs typically last 20 to 30 years depending on the installation and shingle quality. Screw the first sheet in the center as well as the edges.