Metal Roof On House Over Shingles

Installing the metal roofing over 1x4 s allows the ability to also install additional insulation under the metal roof.

Metal roof on house over shingles.

The second way to install a metal roof over a shingle roof is with the use of purlins or battens. If you are trying to decide between the two materials it s important to carefully look at the metal over shingle roof problems. Things to know about metal over shingle roof problems. This method has its benefits as well.

Metal roofs over shingles will also provide an extra layer covering your home helping to further insulate it. 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. It provides a solid flat surface to attach the new metal roof to it creates an air gap between the back of the metal and the shingle roof which allows for airflow. Disadvantages of metal roofs.

Advantages of metal roofs over shingles. A steel roof is a lifetime investment lasting 50 years or more if it s a good one. Both metal and shingle roofs are great options for your next roofing project. Otherwise you will need to remove the shingles.

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. After all you ll be making a significant and long term investment. However you should only install a metal roof over shingles if you have less than four layers of shingles on the roof.