Installing Tin Roofing Over Shingles

Things to know about metal over shingle roof problems.

Installing tin roofing over shingles.

However you should only install a metal roof over shingles if you have less than four layers of shingles on the roof. Anatomy of a steel roof. Both metal and shingle roofs are great options for your next roofing project. A metal roof is an alternative to a shingle covered roof but a metal roof can actually be installed over shingles.

If trapped between the metal roofing and old roofing moisture can build up and cause mold and rot. 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 metal roofing over shingles is the best solution. In terms of performance many homeowners choose a steel roof making it the most popular option when it comes to creating a metal roof over existing shingles.

When choosing to install a metal roof homeowners need to. This is by far the most common way to install a metal roof. The metal used for the roof can be tin copper aluminum or steel. What s involved in how to install metal roofing.

As long as the plywood under the shingle roof is in good condition this way can provide many benefits. Installation of metal roofing over shingles. 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. After all you ll be making a significant and long term investment.

Address any existing roof leaks and replace rotten rafters or. Although you can install corrugated metal roofing over shingles for the best foundation it is recommended that all the old roofing be removed. This is what it looks like when you install a steel shingle roof system over an existing asphalt shingle roof. Codes vary so call your local building department to know how to install metal roofing over shingles properly code wise.

Work at a comfortable steady pace trying not to rip up or carry off too much old roofing at once. If you choose to install metal roofing over shingles there are certain things you must keep in mind. Make sure roof is square. But first here are a few precautions about the underlying material.

3 install 1x4 purlins down over the shingles before installing the metal roof the third way to install a metal roof over shingles is by applying 1x4 purlins over the shingle roof. But roofers can install a vented metal roof that eliminates this potential problem. Or installing the new metal roofing over furring strips 1 x 3s or similar will raise the metal and provide a ventilating air pocket between layers.