How To Apply Metal Roofing Over Shingles

Yes you can install a metal roof over shingles.

How to apply metal roofing over shingles.

Codes vary so call your local building department to know how to install metal roofing over shingles properly code wise. Both metal and shingle roofs are great options for your next roofing project. The low weight of metal roofing is one thing that encourages this. Things to know about metal over shingle roof problems.

Lay the starter row of metal shingles at the drip edge and affix to the roof with metal roofing nails. We get asked this question all the time. Installing the metal roofing over 1x4 s allows the ability to also install additional insulation under the metal roof. Make sure roof is square.

Install your metal edging around the perimeter of your roof. Yes you can and by doing so you save in the labor and hassle of tearing off the old roof and you won t be contributing to filling our landfills. Make a slat board base on top of the shingles. Then cover the entire roof with a layer of insulation and secure it with a staple gun.

Use 1 1 4 inch. However you ll want to check with your local building department before you make any decisions. 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. Anatomy of a steel roof.

This is what it looks like when you install a steel shingle roof system over an existing asphalt shingle roof. You will need to lay some 1 by 4 inch pine boards lengthwise every two feet on your roof. Most metal shingles will be attached to the roof using metal shingle. 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.

Steel shingles weigh about 1 4 what asphalt shingles weigh and aluminum shingles weigh about 1 8 what standard shingles weigh. Before you install metal roofing repair any damage to the wood under the shingles. The vast majority of installations of the metal roofing systems produced by my company are over existing shingles. How to install a metal roof over shingles.

Next use 1 inch nails to secure some metal edging to the perimeter of the roof. After all you ll be making a significant and long term investment. If you are trying to decide between the two materials it s important to carefully look at the metal over shingle roof problems. Work up from the initial row starting at the lower corner in a diagonal pattern staggering the shingles to prevent gaps.