Stone coated metal roofing or stone coated steel roofing has a deep architectural profile and can mimic the look of asphalt shingles wood shakes or clay tiles this premium roofing material comes with warranties up to 50 years and is rated highly for resistance to winds hail and fire.
Substitute for roofing felt.
In my expert opinion the three layer felt roofing system is the better option.
Roofing felt is highly flammable and can exacerbate the danger in case of a fire.
You could just put shingles over plywood but you run the risk of replacing your roof and any damage to the structure that may accur.
Roofing felt has been a popular material for flat roofing systems for over a hundred years.
It is waterproof and durable as well as cheap but there are a number of downsides to its use.
A variety of different types of manufacturers have developed proprietary polymer blends that make up synthetic underlayment.
These products are much more tear resistant than felt underlayment.
One of the fastest growing trends in the roofing industry is the use of a synthetic roof underlayment under a number of different roofing systems.
The first glass fibre layer fitted loose this for the purpose of any building movement ensuring the felt does not split.
The felt will help protect the plywood from moisture and rot.
Substituting synthetic roof underlayments for housewrap q.
The second glass fibre layer fully bonded with hot bitumen and the third layer also fully bonded being a high performance non rip material.