Installing Metal Roofing Over Cedar Shingles

The second way to install a metal roof over a shingle roof is with the use of purlins or battens.

Installing metal roofing over cedar shingles.

Installing the metal roofing over 1x4 s allows the ability to also install additional insulation under the metal roof. This is what it looks like when you install a steel shingle roof system over an existing asphalt shingle roof. Yes you can install a metal roof over shingles. 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.

So how to install metal roofing over shingles. Work up from the initial row starting at the lower corner in a diagonal pattern staggering the shingles to prevent gaps. Yes you can and by doing so you save in the labor and hassle of tearing off the old roof and you won t be contributing to filling our landfills. Lay the starter row of metal shingles at the drip edge and affix to the roof with metal roofing nails.

Install the metal edging. This method has its benefits as well. However you ll want to check with your local building department before you make any decisions. You will need to lay some 1 by 4 inch pine boards lengthwise every two feet on your roof.

It can also help dampen the noise of rain on your new metal 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. Because they are so lightweight they can easily be installed over old shingles. Well that s why the metal roof is such like an eco friendly product because you don t have to get rid of all of that stuff to the landfills.

Metal roofing is also available in the form of shingles. Can i install a new metal roof over shingles. Venting the eaves to vent the roof holes are cut in the old roof above the soffit which pulls air through the soffit vents underneath. Make a slat board base on top of the shingles.

This can greatly reduce the time labor and overall cost of installation as well as provide better insulation for your home. Building officials in some areas will only allow a re roof over one layer of shingles while officials in other places may allow you to place the roof over two layers of shingles. How to install a metal roof over shingles hunker.