Proper Way To Install Metal Roofing Over Shingles

Step 3 install slat board.

Proper way to install metal roofing over shingles.

Install metal roofing sheets. Yes you can install a metal roof over shingles. Step 5 install metal. Venting the eaves to vent the roof holes are cut in the old roof above the soffit which pulls air through the soffit vents underneath.

Laying steel roofing over shingles the right way. This is what it looks like when you install a steel shingle roof system over an existing asphalt shingle roof. Step 4 install edging. Place a sheet from top to bottom on a section of the roof.

Make sure that the screws are all aligned evenly as you will be able to see them from the ground if they are. If you want to install steel over asphalt your best choice is to use a steel shingle system like the one shown instead of the more common and more expensive standing seam steel. Use your neoprene washer head screws to secure the metal to the sheathing. Brace your extension ladder.

Choose a day with calm weather to work on the roof. A layer of underlayment installed on top of the existing shingles will help keep the granules of the old shingles from rubbing against the back of the metal and causing possible corrosion. Installing the metal roofing over 1x4 s allows the ability to also install additional insulation under the metal roof. For exposed fasteners avoid over tightening the fastener.

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. Metal roofing is very slippery when wet. Space the screws about 12 in 30 cm apart. Step 1 work safely.

Step 2 measure roof. Most metal shingles will be attached to the roof using metal shingle. It provides a solid flat surface to attach the new metal roof to it creates an air gap between the back of the metal and the shingle roof which allows for airflow. Lay the starter row of metal shingles at the drip edge and affix to the roof with metal roofing nails.

Metal roofing sheets have to be installed one at a time. In a standing seam roof long single panels run vertically all the way from the eave to the ridge.