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.

How do i install a metal roof over shingles.

A steel roof is a lifetime investment lasting 50 years or more if it s a good one. Install the roofing screws vertically along each rib in the panel. Also be careful not to scratch the colored surfaces of the metal. Can i install a new metal roof over shingles.

Make a slat board base on top of the shingles. Screw the metal sheets into the slat board with a wood screw every 2 feet along the edges. Another added benefit is that the layers of your old roof will further insulate your home. 5install metal panels or shingles.

Screw the first sheet in the center as well as the edges. Before you can begin to update your roof you will have to get an accurate. How to install a metal roof over shingles hunker. 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.

Be sure the larger edge is laid so that the small edge of the next panel will overlap it. 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. The vast majority of installations of the metal roofing systems produced by my company are over existing shingles.

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. It doesn t matter if the air space is a half inch or six inches because the condensation factor will remain the same. 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. If you must climb onto the roof to measure the space be.

You will need to lay some 1 by 4 inch pine boards lengthwise every two feet on your roof. Measure the length width and rise of one section your roof. Put the steel down directly on a vapor barrier. When you install the panels you will have to cut the valleys by hand.

Begin laying the metal sheets from the bottom to the top of the roof. 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. Asphalt roofs typically last 20 to 30 years depending on the installation and shingle quality. Install your metal edging around the perimeter of your roof.

Steel shingles weigh about 1 4 what asphalt shingles weigh and aluminum shingles weigh about 1 8 what standard shingles weigh. Always try to measure from the ground first in order to keep yourself safe.