Residential Metal Roof Over Existing Shingles

If conditions are right new shingles laid over old shingles can be just as attractive and durable as shingles laid on bare sheathing.

Residential metal roof over existing shingles.

If you don t want to take our word for it check with your local building department. Get a precise measurement of your roof surface. In some neighborhoods and homeowner associations metal roofs are against jurisdictional policies. You will want to install layer of underlayment between the old and new roofs.

The second way to install a metal roof over a shingle roof is with the use of purlins or battens. Asphalt roofs typically last 20 to 30 years depending on the installation and shingle quality. That means it can t be installed or new or existing homes. This is what it looks like when you install a steel shingle roof system over an existing asphalt shingle roof.

As long as the plywood under the shingle roof is in good condition this way can provide many benefits. 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. 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. In some areas building officials only allow a re roof over one layer of 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. Start putting the metal panels. A steel roof is a lifetime investment lasting 50 years or more if it s a good one. Metal roofing weighs less than one pound per square foot.

However you ll want to check with your local building department before you make any decisions. Lay down roofing felt over the entire roof. This is largely due to the fact that metal roofing is often associated with industrial dwellings. Asphalt shingles can weigh up to four pounds per square foot depending on the brand.

Steel roofs can be noisy and unattractive in residential settings. However if the steel roof is installed over an existing asphalt roof noise shouldn t be a problem. Step by step guide step 1. Your goal with the roofing felt is to make sure everything is as.

Installation is easier than for a tear off job because you can use the existing shingles as guides for laying the new ones. This is by far the most common way to install a metal roof. But you must take care to install shingles correctly so they lie flat. Getting an accurate measurement will help you determine the.

Yes you can install a metal roof over shingles. 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.