Residential Metal Roof Over Existing Shingles

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.

Residential metal roof over existing shingles.

If you don t want to take our word for it check with your local building department. In some neighborhoods and homeowner associations metal roofs are against jurisdictional policies. 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. Step by step guide step 1.

Start putting the metal panels. Yes you can install a metal roof over shingles. And as you can see from the photos if you pick a good looking style from the many choices available your house definitely won t look like a cattle barn. 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.

Asphalt shingles can weigh up to four pounds per square foot depending on the brand. However if the steel roof is installed over an existing asphalt roof noise shouldn t be a problem. If conditions are right new shingles laid over old shingles can be just as attractive and durable as shingles laid on bare sheathing. You will want to install layer of underlayment between the old and new roofs.

This is largely due to the fact that metal roofing is often associated with industrial dwellings. Steel roofs can be noisy and unattractive in residential settings. A steel roof is a lifetime investment lasting 50 years or more if it s a good one. Your goal with the roofing felt is to make sure everything is as.

As long as the plywood under the shingle roof is in good condition this way can provide many benefits. This method has its benefits as well. Getting an accurate measurement will help you determine the. This is by far the most common way to install a metal roof.

This is what it looks like when you install a steel shingle roof system over an existing asphalt shingle roof. Lay down roofing felt over the entire roof. Get a precise measurement of your roof surface. 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.

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. The second way to install a metal roof over a shingle roof is with the use of purlins or battens. However you ll want to check with your local building department before you make any decisions. In some areas building officials only allow a re roof over one layer of shingles.

Metal roofing weighs less than one pound per square foot. But you must take care to install shingles correctly so they lie flat.