Leaking Fibreglass Flat Roof

However in my own experience the problems with leaking flat roofs are usually as a result of either poor workmanship installing the roof membrane poor maintenance by the building owner or as a result of age.

Leaking fibreglass flat roof. Flat roofs are known as being problematic with many suffering leaks. Degrading fibreglass roof your fibreglass roof is starting to look a bit tired but essentially there s nothing. I find that the grp wall flashings often used can cause problems where a sand and cement mortar is used or sealant is poorly applied i e. Most flat roofs are made of asphalt rubber.

Holes in fibreglass roof when you notice a hole in your grp roofing it can be worrying especially with heavy. Random sunny days create expansion and slight movement which is perfectly fine under normal circumstances with any fibreglass flat roof. When this is accomplished the rest of the job is manageable for many homeowners. The most important step to properly sealing a fibreglass roof that is leaking is finding the leaks.

Fibreglass flat roof common problems and solutions that work. Diy fibreglass repair the first place to check with a fibreglass roof is the flashings into any abutting wall. Fibreglass roof leaking how are leaks caused in a fibreglass roof. 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.

The normal cause of this is if applying the. Cracks can also occur from expansion and contraction caused by seasonal extremities. Common fibreglass flat roof problems ponding. Providing the roofer has built in some allowance for such movement with 10 20mm gaps to perimeter edges the deck boards were fitted with a 3mm gap on the joints you shouldn t have any problems.

If you look at the photo you can see the mortar missing from the chase and where it s not missing it s cracked and loose. This is often mistaken for the cause of a fibreglass roof leak. These roofs work well but you do need to inspect them on occasion for cracks and other signs of damage. Sometimes the top coat can start to flake and crack.

Fibreglass roofing has extremely good waterproofing properties compared to some other flat roofing systems. Into a dusty brickwork chase.