Installing Metal Roofing Over Shingles Shakes

Another added benefit is that the layers of your old roof will further insulate your home.

Installing metal roofing over shingles shakes.

Alternatively a metal shingles roof can be installed over the old asphalt shingles if you do not want to tear it off provided there is only one layer of existing shingles on the roof. In a new construction metal shingle roofing can be installed over any type of solid sheeting such as plywood or wooden planks boards that do not have spaces in between them. 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. Use a starter strip or cut pieces for a starter course.

This is by far the most common way to install a metal roof. Attach with nails along the top edge of the strip. Most metal shingles will be attached to the roof using metal shingle. The second way to install a metal roof over a shingle roof is with the use of purlins or battens.

Work up from the initial row starting at the lower corner in a diagonal pattern staggering the shingles to prevent gaps. If you are trying to decide between the two materials it s important to carefully look at the metal over shingle roof problems. Install your metal edging around the perimeter of your roof. 3 install 1x4 purlins down over the shingles before installing the metal roof the third way to install a metal roof over shingles is by applying 1x4 purlins over the shingle roof.

Lay the starter row of metal shingles at the drip edge and affix to the roof with metal roofing nails. Rip cut the starter strip or starter pieces so that they butt up against the second course of existing shingles and are even with the front edge of the existing roofing. This method has its benefits as well. Should old shingles be removed before new installation.

However you ll want to check with your local building department before you make any decisions. Install the metal edging. As long as the plywood under the shingle roof is in good condition this way can provide many benefits. You will need to lay some 1 by 4 inch pine boards lengthwise every two feet on your roof.

After all you ll be making a significant and long term investment. How to install a metal roof over shingles. March 11 2020 by safe harbor roofing reroofing is the practice that involves installing a new roof over an existing one. Yes you can install a metal roof over shingles.

Can i install a new metal roof over shingles. Things to know about metal over shingle roof problems. Make a slat board base on top of the 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.