Repairing A Fibreglass Flat Roof

Grp roofing is an excellent flat roofing system.

Repairing a fibreglass flat roof.

Cracks can also occur from expansion and contraction caused by seasonal extremities. The material is watertight fire resistant and seamless with a 25 year warranty. The roof was not installed correctly. How to install fibreglass roof sheets for flat roof repair.

When prepping the repair zone it is important to remember not sand down past the fibreglass under layer. And the problems above will only occur for three reasons. Fitting the new roof decking osb3 oriented strand board is the roof deck of choice for laying a new fibreglass roof onto. Your fibreglass roof is starting to look a bit tired but essentially there s nothing structurally wrong with it.

The answer is a restoration coating that will fully protect and restore it for another 10. Preventing fibreglass roofing problems. Fibreglass flat roof repair. Acrylic sealant will scrape off and clean with acetone for a permanent repair later on.

If you have any cracks or visible grp pinholes just apply some sealant as a filler first. Use a disc sander to clean down the edges of the repair zone and remove any obtrusive damage material and then clean the area with acetone. Cut around the damaged area until the membrane rests flat. One of the main sources of damage on fibreglass flat roofs can be grp flashings near abutting walls that leak or cracks splits near board joints trims and or upstands.

Sheets are supplied with primer and topcoata and the tools required for fitting are minimal a brush stanley knife or scissors and rollers. Preparing a flat roof for repair. The roof hasn t been properly maintained. Roof deck and trim battens this video is part 1 of a 5 part series that takes you through the process of how to fibreglass a flat roof.

Cut to size resin on top all bubbles removed. Permanent fibreglass roof repair this involves a thorough cleaning and sanding of the affected area first with acetone and 60 grade grit paper for a minimum of 75mm 3 around the repair. Using a utility knife make a shallow cut until you can remove material around the spot without damaging the layers underneath it. The patches and sealant will fix holes and cracks.

The fibreglass roof is at the end of its life span. For most small punctures you can repair your roof simply by forcing sealant into them. A 600g chopped strand mat csm can then be laminated into place resin onto roof area to be repaired c s m. Sometimes doing that is difficult.

Once applied it is ready to walk on in 20 minutes. Fibreglass flat roof common problems and solutions that work. You don t even have to wait for the sealant to dry just paint it straight on. We would recommend a different covering such as grp fibre glass.