Installing Corrugated Metal Roofing Over Shingles

Metal roofing is very slippery when wet.

Installing corrugated metal roofing over shingles.

However you ll want to check with your local building department before you make any decisions. A corrugated metal roof is quieter than pvc when it rains. Installing the metal roofing over 1x4 s allows the ability to also install additional insulation under the metal roof. How to install a metal roof over shingles hunker.

Work up from the initial row starting at the lower corner in a diagonal pattern staggering the shingles to prevent gaps. 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. There are really two ways to install a metal roof over a shingle roof. Lay the starter row of metal shingles at the drip edge and affix to the roof with metal roofing nails.

You will need to lay some 1 by 4 inch pine boards lengthwise every two feet on your roof. Choose a day with calm weather to work on the roof. The first way is to run new underlayment over the existing shingle roof completely covering the old roof. This is what it looks like when you install a steel shingle roof system over an existing asphalt shingle roof.

Step 3 install slat board. This provides a couple of benefits. 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. One downside is that the metal sheets have a susceptibility to denting both in installation and during hailstorms.

This is what it looks like when you install a steel shingle roof system over an existing asphalt shingle roof. Anatomy of a steel roof. Most metal shingles will be attached to the roof using metal shingle. Our metal roofing profiles.

Step 4 install edging. Codes vary so call your local building department to know how to install metal roofing over shingles properly code wise. Step 2 measure roof. Step 5 install metal.

Brace your extension ladder. Install the metal edging. Laying steel roofing over shingles the right way. Metal roofing resists rot is not susceptible to insect damage and is non combustible a boon in fire prone areas.

Install your metal edging around the perimeter of your roof. So when we talk about metal roofing over shingles how does it work. Step 1 work safely. 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.

Make a slat board base on top of the shingles.