Repairing A Fibreglass Flat Roof

The flat roof is torch on bitumen with torch on flashing this roof has been patched repaired previously torch on felt roofs have an approximate life span of 10 12 years merely as a covering.

Repairing a fibreglass flat roof.

The roof hasn t been properly maintained. Perfect for rejuvenating a fibreglass flat roof it only requires one coat looks fantastic and is incredibly tough once cured. Grp roofing is an excellent flat roofing system. How to install fibreglass roof sheets for flat roof repair.

For most small punctures you can repair your roof simply by forcing sealant into them. The fibreglass roof is at the end of its life span. This will remove any obstructions and prepare the area for bonding. 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.

Cracks can also occur from expansion and contraction caused by seasonal extremities. 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. Using a utility knife make a shallow cut until you can remove material around the spot without damaging the layers underneath it. Sometimes doing that is difficult.

Acrylic sealant will scrape off and clean with acetone for a permanent repair later on. The roof was not installed correctly. Fitting the new roof decking osb3 oriented strand board is the roof deck of choice for laying a new fibreglass roof onto. The material is watertight fire resistant and seamless with a 25 year warranty.

Cut to size resin on top all bubbles removed. A 600g chopped strand mat csm can then be laminated into place resin onto roof area to be repaired c s m. Preparing a flat roof for repair. Cut around the damaged area until the membrane rests flat.

Preventing fibreglass roofing problems. Your fibreglass roof is starting to look a bit tired but essentially there s nothing structurally wrong with it. If you have any cracks or visible grp pinholes just apply some sealant as a filler first. And the problems above will only occur for three reasons.

We would recommend a different covering such as grp fibre glass. 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. When prepping the repair zone it is important to remember not sand down past the fibreglass under layer. 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.

Fibreglass flat roof repair. Sheets are supplied with primer and topcoata and the tools required for fitting are minimal a brush stanley knife or scissors and rollers. The patches and sealant will fix holes and cracks. Once applied it is ready to walk on in 20 minutes.