Grp Roof Delamination
A properly laid glass fibre grp roof will last for at least 30 years with no measurable deterioration.
Grp roof delamination. Fibreglass grp roofing. A flat roofing system comprising of a cure it grp laminate with cure it topcoat when tested to bs 476 3. If a flexible grp roofing system like fibrelast was used. Repairing a delaminated roof.
The roof must be laid onto a dry deck in dry conditions at a temperature not below 5 c. The resins and top coats should be suitably for use in roofing. 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. 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.
Delamination of the grp panels had been observed during installation on the casino and mice building roofs. F aa rating is available with the exposed aggregate finish. This guide relates only to the application of the grp laminate and top coat. 20 year guarantee roof leaking after just 3 years.
In particular it was alleged that the inner skins of the grp panels were coming apart from the aluminium honeycomb core. The roof was boarded in exterior ply and this got wet prior to the fibreglass being applied although the contractor dried it off with a blow torch type device. This is a liquid roofing system which uses fibreglass matting topcoat and resin to form a waterproof barrier. Fibreglass roof delamination repair or replacement we had an extension built late last year which has a flat fibreglass roof.
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. Surveys were carried out and delamination was allegedly found to be. 2004 was designated ext f ab no limitations on use.
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. 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.