Metal Roof Over Shingles Insulation

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

Metal roof over shingles insulation.

The layer can be installed over the existing shingles new roof decking or simply over open rafters. Work up from the initial row starting at the lower corner in a diagonal pattern staggering the shingles to prevent gaps. Asphalt shingles can weigh up to four pounds per square foot depending on the brand. This is part 1 of a 6 part video series explaining how i installed a metal roof on my house.

Things to know about metal over shingle roof problems. Radiant barrier spray metal roof insulation adding the metal roof insulation can be done easily when you renovate your house. Add your insulation layer. Metal roofing is also available in the form of shingles.

Use roofing felt to cover the entirety of the roof and secure it with a staple gun or nails then cover it with a breathable membrane. If you don t want to take our word for it check with your local building department. By placing metal roofing over shingles you can save in the labor costs of ripping them off while also preventing them from being thrown into landfills. In this video i cover measuring the roof figuring the metal th.

Metal is the best choice due to its very low weight per square foot and its unique design. 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. While metal roofs are efficient at its ability to resist heat transfer it is exposed and absorbs just as much heat as a shingle roof. Lay the starter row of metal shingles at the drip edge and affix to the roof with metal roofing nails.

After all you ll be making a significant and long term investment. Both metal and shingle roofs are great options for your next roofing project. As long as the plywood under the shingle roof is in good condition this way can provide many benefits. Technically there is no difference in the insulation value of a metal or shingle roof.

If you are trying to decide between the two materials it s important to carefully look at the metal over shingle roof problems. Shingle roofs weight twice as much as a metal roof which means that it accumulates twice as much heat. Metal roofing weighs less than one pound per square foot. No matter it is an office or a home a layer of metal roof insulation will give you a lot of benefits.

This helps to block moisture from getting trapped between the metal roof and the sheathing.