Installing Metal Roofing Over Shingles Shakes

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

Installing metal roofing over shingles shakes.

Things to know about metal over shingle roof problems. You will need to lay some 1 by 4 inch pine boards lengthwise every two feet on your roof. Lay the starter row of metal shingles at the drip edge and affix to the roof with metal roofing nails. Work up from the initial row starting at the lower corner in a diagonal pattern staggering the shingles to prevent gaps.

As long as the plywood under the shingle roof is in good condition this way can provide many benefits. Make a slat board base on top of the shingles. This is by far the most common way to install a metal roof. However you ll want to check with your local building department before you make any decisions.

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. How to install a metal roof over shingles. If you are trying to decide between the two materials it s important to carefully look at the metal over shingle roof problems. Another added benefit is that the layers of your old roof will further insulate your home.

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. Both metal and shingle roofs are great options for your next roofing project. Use 1 1 4 inch.

Install the metal edging. Use a starter strip or cut pieces for a starter course. After all you ll be making a significant and long term investment. Should old shingles be removed before new installation.

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. Attach with nails along the top edge of the strip. 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. 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.

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. March 11 2020 by safe harbor roofing reroofing is the practice that involves installing a new roof over an existing one. This method has its benefits as well. 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.