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.
Metal roof installation instructions over shingles.
Codes vary so call your local building department to know how to install metal roofing over shingles properly code wise.
In terms of aesthetics you need to be careful in terms of choosing your metal roof solution so that it will blend into your surrounding neighborhood.
The use of underlayment between the shingles and metal roof panels is a standard practice.
Experts recommend that you work diagonally and raising each row of shingles gradually.
Give our friendly sales staff a call if you have any questions.
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.
Yes you can install a metal roof over shingles.
Also if the existing shingles on top are not level or in very poor condition you may need to put a layer of roofing felt down or wooden frame over the shingles before installing the new metal roof.
If you need to reposition your gutters do so at this.
What s involved in how to install metal roofing.
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.
Make sure roof is square.
You should start your metal shingles installation with half a shingle or in accordance with your metal shingles installation manual which should be system specific starting from the left of the starter flashing or gable.
Can i install a new metal roof over shingles.
We get asked this question all the time.
If you come across any large nails that are sticking out either remove them and put them in your debris container or.
Most metal shingles will be attached to the roof using metal shingle.
This is what it looks like when you install a steel shingle roof system over an existing asphalt shingle roof.
Installing the metal roofing over 1x4 s allows the ability to also install additional insulation under the metal 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.
However you ll want to check with your local building department before you make any decisions.