Metal Roof On Top Of Shingles

However you should only install a metal roof over shingles if you have less than four layers of shingles on the roof.

Metal roof on top of shingles.

Typically a roof starts with shingles but did you know that you can actually just install the new metal roof on top of the shingles. Technically the answer is yes you can install a metal roof on top of shingles as long as there are fewer than four layers of shingles on the roof. The second way to install a metal roof over a shingle roof is with the use of purlins or battens. A metal roof reduces cooling costs during the summer months because it can reflect the sun s rays.

Asphalt over asphalt is not advisable. Why not install a metal roof over shingles. It is very much like constructing a non loadbearing interior wall framework and sticking that framework on top of your roof. This means the total roof weight was probably greater when the previous layer of shingles was installed than the new metal roofing.

Metal roofing weighs less than one pound per square foot. Metal is the best choice due to its very low weight per square foot and its unique design. Wood framework base for the metal but the way that we get around it with the steel roofing is to construct a wood framework of one by four s and then lay the metal on top of that framework. The metal used for the roof can be tin copper aluminum or steel.

In terms of performance many homeowners choose a steel roof making it the most popular option when it comes to creating a metal roof over existing shingles. Metal roofing can be installed over top of shingles. However that process can lead to a variety of complications and therefore is not recommended. Installing metal roofing over shingles is the best solution.

Asphalt shingles can weigh up to four pounds per square foot depending on the brand. One of the major advantages of metal roofing is that it is very lightweight. One important thing to remember when you re deciding what type of roof to buy is that new asphalt shingles shouldn t be placed on top of old asphalt shingles. Otherwise you will need to remove the shingles.

It doesn t matter if the air space is a half inch or six inches because the condensation factor will remain the same. Put the steel down directly on a vapor barrier. Metal roof over shingles condensation. Metal roofs must be laid flat on a vapor barrier because steel will condensate if there s any air space underneath it.

If you don t want to take our word for it check with your local building department. This method has its benefits as well. This makes it a perfect material to be installed right on top of an existing shingle roof. 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.