Installing Corrugated Metal Roofing Over Shingles

The first one being that the new underlayment will act as a second line of defense in case water would to somehow get underneath the metal roof.

Installing corrugated metal roofing over shingles.

Yes you can 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. Our metal roofing profiles. Step 2 measure roof.

Step 5 install metal. Install the metal edging. Anatomy of a steel roof. Work up from the initial row starting at the lower corner in a diagonal pattern staggering the shingles to prevent gaps.

Install your metal edging around the perimeter of your roof. This is what it looks like when you install a steel shingle roof system over an existing asphalt shingle roof. Make a slat board base on top of the shingles. Step 3 install slat board.

Step 4 install edging. Metal roofing is very slippery when wet. Step 1 work safely. 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.

Installing the metal roofing over 1x4 s allows the ability to also install additional insulation under the metal roof. What s involved in how to install metal roofing. Metal roofing resists rot is not susceptible to insect damage and is non combustible a boon in fire prone areas. Lay the starter row of metal shingles at the drip edge and affix to the roof with metal roofing nails.

Most metal shingles will be attached to the roof using metal shingle. Choose a day with calm weather to work on the roof. However you ll want to check with your local building department before you make any decisions. The first way is to run new underlayment over the existing shingle roof completely covering the old roof.

There are really two ways to install a metal roof over a shingle roof. 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. Brace your extension ladder.

Codes vary so call your local building department to know how to install metal roofing over shingles properly code wise. 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. A corrugated metal roof is quieter than pvc when it rains. You will need to lay some 1 by 4 inch pine boards lengthwise every two feet on your roof.

This provides a couple of benefits.