Putting Metal Roof Over Asphalt Shingles

Need a new roof.

Putting metal roof over asphalt shingles.

Whether you are looking to install a metal roof on a shed or a house it s important to know the difference in the various types of metal roofs available. However you ll want to check with your local building department before you make any decisions. Can you install metal roofing over asphalt shingles. 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.

This is by far the most common way to install a metal roof. 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. 3 install 1 4 purlins down over the shingles before installing the metal roof the third way to install a metal roof over shingles is by applying 1 4 purlins over the shingle roof. This is what it looks like when you install a steel shingle roof system over an existing asphalt shingle roof.

However you should only install a metal roof over shingles if you have less than four layers of shingles on the roof. Can you avoid tearing off your old asphalt shingle roof by putting a steel roof over it. 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. Yes you can install a metal roof over shingles.

Let s take a look at the most common types of metal roofs for houses. Most codes now allow no more than two layers of roofing before. A metal roof is an alternative to a shingle covered roof but a metal roof can actually be installed over shingles. An affordable option and easier to lay than shingles tin is the most commonly used type of metal roofing.

If you are trying to decide between the two materials it s important to carefully look at the metal over shingle roof problems. Covering your existing asphalt shingles with metal roofing might be worth the expense. Things to know about metal over shingle roof problems. Both metal and shingle roofs are great options for your next roofing project.

Can i install a new metal roof over shingles. Otherwise you will need to remove the shingles. We get asked this question all the time. Here are some pros and cons.

This post discusses using stone coated metal shingles over the top of asphalt shingles. The second way to install a metal roof over a shingle roof is with the use of purlins or battens. As long as the plywood under the shingle roof is in good condition this way can provide many benefits. The purlins are screwed or nailed down to the roof deck depending on how the metal roofing manufacturer has testing for their roofing panels and then the metal is installed to the purlins.