Residential Metal Roof Over Existing Shingles

Asphalt roofs typically last 20 to 30 years depending on the installation and shingle quality.

Residential metal roof over existing shingles.

However you ll want to check with your local building department before you make any decisions. Yes you can install a metal roof over shingles. Every situation will be different but generally speaking installing one of the more heavily textured metal roofs such as a corrugated vertical seam or or a horizontal metal shingle over your existing shingles should not be a problem. Getting an accurate measurement will help you determine the.

Steel roofs can be noisy and unattractive in residential settings. If conditions are right new shingles laid over old shingles can be just as attractive and durable as shingles laid on bare sheathing. Metal roofing weighs less than one pound per square foot. Installation is easier than for a tear off job because you can use the existing shingles as guides for laying the new ones.

That means it can t be installed or new or existing homes. 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. Get a precise measurement of your roof surface. However if the steel roof is installed over an existing asphalt roof noise shouldn t be a problem.

This is largely due to the fact that metal roofing is often associated with industrial dwellings. If you don t want to take our word for it check with your local building department. Asphalt shingles can weigh up to four pounds per square foot depending on the brand. Step by step guide step 1.

You will want to install layer of underlayment between the old and new roofs. In some areas building officials only allow a re roof over one layer of shingles. In some neighborhoods and homeowner associations metal roofs are against jurisdictional policies. The second way to install a metal roof over a shingle roof is with the use of purlins or battens.

This method has its benefits as well. This is what it looks like when you install a steel shingle roof system over an existing asphalt shingle roof. So the investment might be worth it but the range of choices makes shopping for a steel roofing system more complicated than you might think. Lay down roofing felt over the entire roof.

But you must take care to install shingles correctly so they lie flat. Your goal with the roofing felt is to make sure everything is as. A steel roof is a lifetime investment lasting 50 years or more if it s a good one. This is by far the most common way to install a metal roof.

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. As long as the plywood under the shingle roof is in good condition this way can provide many benefits.