Grp Roof Delamination

This is a liquid roofing system which uses fibreglass matting topcoat and resin to form a waterproof barrier.

Grp roof delamination.

Fibreglass roof delamination repair or replacement we had an extension built late last year which has a flat fibreglass roof. If a flexible grp roofing system like fibrelast was used. The resins and top coats should be suitably for use in roofing. Traditional wet laid grp roofs where liquid resin is applied directly to a timber substrate before having the glass reinforcement incorporated insitu can provide extremely tough reliable and durable roofs that will outlast any thermoplastic or elastomeric membrane.

F aa rating is available with the exposed aggregate finish. Immediately the mind thinks of the worst possible problem that it can be like a crack in the roof laminate or delamination between the fibreglass and the roof decking. The roof must be laid onto a dry deck in dry conditions at a temperature not below 5 c. A properly laid glass fibre grp roof will last for at least 30 years with no measurable deterioration.

Delamination of the grp panels had been observed during installation on the casino and mice building roofs. This can be caused by a wide range of problems including applying the materials on roof decking not specified for use with the system ie plywood or chipboard instead of osb3 damp roof deck at the time of lamination or incorrect catalyst ratios. 2004 was designated ext f ab no limitations on use. The best fix in most situations is to simply replace the delaminated material with new membrane.

In particular it was alleged that the inner skins of the grp panels were coming apart from the aluminium honeycomb core. Fibreglass grp roofing. Finally roofs on special purpose buildings that generate significant levels of humidity such as freezer facilities or indoor swimming pools are inherently prone to delamination. Surveys were carried out and delamination was allegedly found to be.

20 year guarantee roof leaking after just 3 years. A flat roofing system comprising of a cure it grp laminate with cure it topcoat when tested to bs 476 3. Now because i installed the roof myself i know it was done by the book and the weather and materials were ideal so it was a bit of a mystery i have to say. Resistance to wind uplift the cure it grp roofing system is fully bonded to the roof substrate.

For the purpose of this article we will be examining how to repair a fibreglass or glass reinforced plastic grp flat roof. The steps outlined below are for a standard flat roof repair.