Proper Way To Install Metal Roof Over Shingles

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.

Proper way to install metal roof over shingles.

The edging or eave flashing consists of metal strips that are used to cover the perimeter of the roof. The industry standard for underlayment is often thought of as felt paper tar paper but there are also many newer synthetic underlayments that are designed to work well with metal roofing. Lay the starter row of metal shingles at the drip edge and affix to the roof with metal roofing nails. 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.

Yes you can install a metal roof over shingles. Step 2 measure roof. Otherwise you will need to remove the shingles. Take your first sheet of.

Step 3 install slat board. This method has its benefits as well. Most metal shingles will be attached to the roof using metal shingle. However you should only install a metal roof over shingles if you have less than four layers of shingles on the roof.

Step 1 work safely. The second way to install a metal roof over a shingle roof is with the use of purlins or battens. Add the metal panels. Step 4 install edging.

Metal roofing is very slippery when wet. How to install a metal roof over shingles with proper tools steel roofs can be noisy and unattractive in residential settings. Always begin working at the point with the longest peak to eave distance. Laying steel roofing over shingles the right way.

However if the steel roof is installed over an existing asphalt roof noise shouldn t be a problem. Step 5 install metal. If you want to install steel over asphalt your best choice for installing metal roofing is to use a steel shingle system like the one shown instead of the more common and more expensive standing seam steel. However you ll want to check with your local building department before you make any decisions.

Work up from the initial row starting at the lower corner in a diagonal pattern staggering the shingles to prevent gaps. Use your 1 1 4. Installing the metal roofing over 1x4 s allows the ability to also install additional insulation under the metal roof. 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.