It can also help dampen the noise of rain on your new metal roof.
Installing metal roofing over cedar shingles.
Install the metal edging.
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.
This method has its benefits as well.
Make a slat board base on top of the shingles.
How to install a metal roof over shingles hunker.
You will need to lay some 1 by 4 inch pine boards lengthwise every two feet on your roof.
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.
Installing the metal roofing over 1x4 s allows the ability to also install additional insulation under the metal roof.
Install your metal edging around the perimeter of your roof.
Another added benefit is that the layers of your old roof will further insulate your home.
This is what it looks like when you install a steel shingle roof system over an existing asphalt shingle roof.
Can i install a new metal roof over shingles.
The second way to install a metal roof over a shingle roof is with the use of purlins or battens.
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.
Yes you can install a metal roof over 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.
This can greatly reduce the time labor and overall cost of installation as well as provide better insulation for your home.
Metal roofing is also available in the form of shingles.
Work up from the initial row starting at the lower corner in a diagonal pattern staggering the shingles to prevent gaps.
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.
So how to install metal roofing over shingles.
But now that i said that i would tell you that if it was my house i probably would and the reason is i don t want to have all those old shingles under the roof.