Residential Metal Roof Over Existing Shingles

This is by far the most common way to install a metal roof.

Residential metal roof over existing shingles.

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. You will want to install layer of underlayment between the old and new roofs. 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.

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. If conditions are right new shingles laid over old shingles can be just as attractive and durable as shingles laid on bare sheathing. But you must take care to install shingles correctly so they lie flat. Getting an accurate measurement will help you determine the.

In some neighborhoods and homeowner associations metal roofs are against jurisdictional policies. In some areas building officials only allow a re roof over one layer of shingles. 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.

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

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. Asphalt roofs typically last 20 to 30 years depending on the installation and shingle quality. However if the steel roof is installed over an existing asphalt roof noise shouldn t be a problem. 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.

Your goal with the roofing felt is to make sure everything is as. Get a precise measurement of your roof surface. Start putting the metal panels. Installation is easier than for a tear off job because you can use the existing shingles as guides for laying the new ones.

Asphalt shingles can weigh up to four pounds per square foot depending on the brand. The second way to install a metal roof over a shingle roof is with the use of purlins or battens. That means it can t be installed or new or existing homes. Step by step guide step 1.

Steel roofs can be noisy and unattractive in residential settings. However you ll want to check with your local building department before you make any decisions.