GRP Fibreglass Roofing in Slough

EPDM is a flexible synthetic rubber membrane usually laid in one large sheet, while GRP is a hard, rigid system made of resin and glass fibres. GRP is much more resistant to impact and vandalism, making it better for roofs that might face foot traffic or falling debris. EPDM is often faster to install, but GRP provides a much more "solid" feel and a very clean, aesthetic finish at the edges thanks to its specialist trims.

When installed correctly on a dry, clean deck with the right resin-to-mat ratio, a GRP roof can easily last 25 to 30 years or more. It does not suffer from the same UV degradation as bitumen-based products, so it won't become brittle over time.

No. This is a common mistake made by inexperienced contractors. The resin and topcoat used in GRP systems will not cure if they come into contact with moisture during the application. At High class roofing, we monitor the weather closely. We only laminate on dry days to ensure the chemical bond is perfect. If we are mid-job and the weather turns, we secure the roof with waterproof sheeting until it is dry enough to continue.

Because GRP is a rigid material, some people worry it might be "loud" during a downpour. However, because it is bonded directly to the timber decking (and often sits above thick insulation), it is usually no noisier than a traditional felt roof.

This is often caused by thermal expansion. If the roof was installed without the correct expansion joints or if the trims weren't fitted properly, the boards can rub against each other as they heat up and cool down. While it sounds alarming, it doesn't always mean the roof is leaking, but it is worth having Jimmy Frankham take a look to ensure the laminate hasn't fractured.

Generally, replacing a roof covering falls under "Permitted Development" and doesn't require planning permission. However, if you live in a Conservation Area in Windsor or a Listed Building in Datchet, there may be restrictions on the materials you can use or the colour of the finish. We can advise you on the local RBWM or Slough Borough Council guidelines during our initial visit.