Metal Roof On House Over Shingles

Both metal and shingle roofs are great options for your next roofing project.

Metal roof on house over shingles.

A steel roof is a lifetime investment lasting 50 years or more if it s a good one. Otherwise you will need to remove the shingles. A metal roof is an alternative to a shingle covered roof but a metal roof can actually be installed over shingles. However you should only install a metal roof over shingles if you have less than four layers of shingles on the roof.

Installing the metal roofing over 1x4 s allows the ability to also install additional insulation under the metal roof. Metal roofs over shingles will also provide an extra layer covering your home helping to further insulate it. If you are trying to decide between the two materials it s important to carefully look at the metal over shingle roof problems. The second way to install a metal roof over a shingle roof is with the use of purlins or battens.

Asphalt roofs typically last 20 to 30 years depending on the installation and shingle quality. Disadvantages of metal roofs. After all you ll be making a significant and long term investment. Anatomy of a steel roof this is what it looks like when you install a steel shingle roof system over an existing asphalt shingle roof.

This method has its benefits as well. 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. 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.