In short any roof covering that can make a flat roof waterproof in one layer unlike roofing felt with its 3 layer system for instance.
Fibreglass flat roof coverings.
The biggest allure of course is the low up front cost.
Below is a guide to each type of flat roof covering.
The top layer is covered with gravel which protects the roof from ultraviolet rays.
Grp fibreglass has become one of the most popular forms of flat roofing systems because it is not only a strong material but doesn t add too much extra weight to the structure.
One of the benefits is that you can finish with sand and cement and retain the look of a period property for example.
The flexibility of grp flat roofing means that it can easily be applied to both large areas and small as well as fit any design.
This material has been used for decades and is often seen on boats.
A topseal fibreglass roof represents the pinnacle of grp roofing technology guaranteed to last a generation designed to last a life time.
Topseal grp fibreglass flat roofing systems have been installed on millions of square metres of roofs over the last 20 years all over the uk.
The epdm roof is now the most common flat roofing system in the u s.
Glass reinforced plastic grp is comprised of polyester resin and chopped strand mat glass fibres which are mixed together to form a laminate.
There is a downside to fibreglass unlike bitumen felt it cannot be laid onto old ply or chipboard.
A grp flat roof or fiberglass roof as it s also known is one of the most popular flat roofing solutions in the uk.
Potential problems with flat roof coverings.
Grp stands for glass reinforced polyester a composite material formed by strengthening plastic with fine fibres made of glass.
Fibreglass is suitable for any shape roof.
Materials can be cut to the shape of the roof and the appropriate trims used to cover a surface effectively.
Some people prefer to finish their flat roof with lead flashings instead of grp flashings as a fibreglass roof installer i prefer the look of traditional lead flashings also.
It was first used on flat roofs several decades ago but got an undeserved bad reputation due to poor workmanship and techniques that have now been improved with updated standards.
Fibreglass is a long lasting tough yet slippery material that has been used as a flat roof covering for decades.
It s commonly seen on smaller flat roofs such as single garages porch roofs and door canopies.