Metal Roof Over Shingles Insulation

If you don t want to take our word for it check with your local building department.

Metal roof over shingles insulation.

This is by far the most common way to install a metal roof. Advantages of metal roofs over shingles. Asphalt shingles can weigh up to four pounds per square foot depending on the brand. Metal roofing weighs less than one pound per square foot.

Disadvantages of metal roofs. The layer can be installed over the existing shingles new roof decking or simply over open rafters. Metal roofing is also available in the form of shingles. If you are trying to decide between the two materials it s important to carefully look at the metal over shingle roof problems.

No matter it is an office or a home a layer of metal roof insulation will give you a lot of benefits. 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. Lay the starter row of metal shingles at the drip edge and affix to the roof with metal roofing nails. Metal roofs over shingles will also provide an extra layer covering your home helping to further insulate it.

Technically there is no difference in the insulation value of a metal or shingle roof. 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. 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.

Work up from the initial row starting at the lower corner in a diagonal pattern staggering the shingles to prevent gaps. 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. Shingle roofs weight twice as much as a metal roof which means that it accumulates twice as much heat. Add your insulation layer.

Radiant barrier spray metal roof insulation adding the metal roof insulation can be done easily when you renovate your house. 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. 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.

After all you ll be making a significant and long term investment.