Add strips of felt paper or polymer underlayment horizontally across the roof making sure to overlap the layers by at least four inches.
Will serve polymer roofing.
A perfect example of a man made polymer is plastic.
A natural polymer is rubber from the caoutchouc or indian rubber tree.
Polymer shingles having nothing but a large overlap can be prone to water intrusion.
Where two parts of the roof meet in a valley overlap the metal roof underlayment generously.
Polymer has a long lasting nature which is a good property to meet roofing requirements.
It is light to moderate in weight.
If i were considering these products i would insist on seeing actual or accelerated weatherization test results going out to replicate at least 20 years and preferably longer.
Even though it s not really possible to know exactly how long plastic polymer shingles will do a good job as a roofing material it can be stated with near certainty that this may be for a considerable amount of time.
Corps of engineers commentary on roofing systems some general criteria for system selection aspects of protected membrane and vegetated roof systems and traditional bituminous.
Staple each strip at the ends and once per square foot in the middle of the strip.
Plastic polymer roofing is moderately priced and is good against both wind and fire.
Polymer modified bituminous roofing systems 08 08 2007 by richard l.
This low maintenance roofing has a long life span and can be made to look like wood slate and clay.
Life expectancy of polymer roofing.
Davinci products are modeled from actual slate and hand split shake for natural non repeating beauty and decades of enduring and worry free beauty.
They occur naturally and can also be man made.
Among the many newer innovative materials used in the construction of residential rooftops today like fiberglass asphalt and metal polymer based roofing products are an exceptional option for installation in both new home constructions and roof replacements.
When used in single ply roofing a polymer can provide both a rubber like absorption to impact combined with a tough underlying structure to resist damage.
Watertightness of polymer roofing.