A professionally laid fiberglass roof is known as GRP roofing. These types of roofing systems have been known to last for at least 30 years with no identifiable deterioration.

However, with GRP roofing supplies readily available at the nearest DIY stores, complete with full tutorials and instructions online – it’s inevitable that insufficiently trained people will be wanting to give this installation a go to cut costs and waiting times. It goes without saying that GRP systems are best installed by a professional.



Without a professional team to do the installation you can be left with a variety of issues, including:

  •  Delamination of the laminate from the boards
  •  Flaking and cracking of the top coat
  •  Patchy or streaky resin or top coat
  •  Resin takes too long to cure/does not cure properly or at all
  •  Unusual colours/markings to the resin

Here at MJO Roofing we have been to endless callouts to repairs roofs that have displayed the above issues (and more!) following an amateur installation. Save your time and money and call the professional team at MJO Roofing on 020 8953 2306 for all of your liquid and flat roofing needs.