Is It Ok To Install A Metal Roof Over Shingles

The purlins are screwed or nailed down to the roof deck depending on how the metal roofing manufacture has testing for their roofing panels and then the metal is installed to the purlins.

Is it ok to install a metal roof over shingles.

Can i install a new metal roof over shingles. 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. The second way to install a metal roof over a shingle roof is with the use of purlins or battens. Both metal and shingle roofs are great options for your next roofing project.

The second way to install a metal roof over a shingle roof is with the use of purlins or battens. 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. 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. Doesn t provide the flattest surface for the metal roofing to be installed over each course of shingles is about a 1 8 higher than the course just below it.

For instance decking isn t suitable for a third replacement regardless of condition so a third installation with the same decking won t be structurally sound. We get asked this question all the time. After all you ll be making a significant and long term investment. Things to know about metal over shingle roof problems.