Flat Roof Felt Or Grp

We compare grp and epdm on price installation durability and more.

Flat roof felt or grp.

Felt is not capable of substantial elongation without failure. This material consists of a layer of polyester resin which is reinforced with glass fibres to form a laminated layer. Although grp is pricier than felt or epdm rubber roofing systems when you factor in this impressive longevity along with the lack of maintenance needed resistance to all weather and attractive laminated finish fibreglass roofs can be worth every penny. Sleek clean appearance extremely moss resistant.

We all know epdm and grp are two of the fastest flat roof systems on the market today but which is best for your project. Its unique construction gives it waterproofing properties for one of the most durable flat roofs on the market. Epdm is highly flexible and can cope with building movement. The covering which makes them water tight can be achieved using various products with 2 standing out as the industries norm.

Grp roofing vs three layer felt system the majority of all loft conversions will have a flat roof constructed to them. The first being a 3 layer felt systems and second grp glass reinforced plastic. Grp is not designed to be capable of any measurable elongation or movement but will withstand normal building movement through expansion and or contraction. While felt may be the most traditional form of flat roofing grp glass reinforced plastic fibreglass is now becoming more popular.

Given the greatly superior durability of grp roofing to felt systems you might think that a grp flat roof would cost a great deal more.