How we install the new flat GRP roof

First of all the old roof is stripped down to the existing joists. We remove not just the felt but the decking also. Depending on the size of the roof a skip may be required for the waste. This will be organised by Aqua Seal.

New external grade OSB (3) 18mm BBA. approved boards are then fixed to the joists. If the roof requires additional fall new firrings will be put in. This will help to eliminate any puddling effects on refurbished roofs. However this might not totally get rid of puddling but as GRP roofing products are totally seamless with no joints, glue or welds no water will penetrate the roof from the deepest of puddles. Unlike felt a GRP roof is not absorbent therefore will not hold water. Any water that does collect will soon evaporate through normal weathering.

A primary basecoat of polyester resin is then applied. There is no heat needed for any of our process’s so there is no fire risk.
The roof is then applied with 600gsm chopstrand fibreglass matting. A secondary layer of polyester resin is then applied to ensure a strong and completely watertight barrier.

Finally a topcoat in a choice of colour is applied, however we do recommend light grey as this helps to eliminate thermal gain. A non slip finish can be applied if you wish. You now have a high performance covering that looks superb and compliments your home.

Skylights and ventilation systems i.e. mushroom vents can be added and the fibreglass is taken up the sides to ensure a completely watertight seal.
The long-term benefits are what really counts as your new roof is maintenance free and no matter what the weather your home is protected for a very long time.

Q: Is this a new idea?
A: GRP (Glass Reinforced Plastic) or fibreglass has been used for many years for all kinds of products. Boats and pond liners are a couple of products that many people would associate with it. It is light, durable, waterproof, seamless and lasts for many decades. Where better to use this but on your roof. Lots of people have installed this on their roof and have enjoyed it for many years so it is not a new idea its just that people are seeing the advantages, benefits of saving money and a maintenance free roof.

Q. I have a balcony that we use during the summer can I have a non slip surface?
A. Yes, some customers prefer a non slip surface.

Q. What is the difference between GRP and a rubber roof covering?
A. GRP is seamless, does not use glue, can be walked or worked on and will last for years. Vessels built over fifty years ago made of the same material are still in use today. Some rubber roof coverings can also be seamless however, glue is used which can break down and deteriorate that could allow seepage of water to penetrate. This will eventually rot timbers underneath and could not be noticed until it is too late. Rubber can be pierced when walked on and can break down, crack and deteriorate during normal weather conditions.

Q. My roof is dirty how can I clean it?
A. Your GRP roof can be swept clean as there is no problem walking on it. You can even use a pressure washer on it knowing there are no seams or joints. Do not use a pressure washer on felt roofs as water could penetrate the seams and would break down the roof covering.

Q. Can I have a different colour?
A. Yes, all colours are BSI approved. Please ask to see our colour range. We have thirty nine different colours although we recommend a light grey colour to diminish thermal gain.

Q. Can puddles or ponding be eliminated completely?
A. If the roof requires additional fall new firrings will be put in. This will help to elliminate any puddling effects on refurbished roofs. However this might not totally get rid of puddling but as GRP roofing products are totally seamless with no joints, glue or welds no water will penetrate the roof from the deepest of puddles. Unlike felt a GRP roof is not absorbent therefore will not hold water. Any water that does collect will soon evaporate through normal weathering.

Q. How long will a GRP roof last?
A. Aquaseal give a lifetime guarantee as we know that boats made of the same material over fifty years ago are showing no signs of breakdown and are still seaworthy today.