Natural light solutions for industrial buildings
Double- or triple-skin roof lights available
Energy saving and leak prevention
What is GRP fibreglass roofing?
GRP Fibreglass Roofing is the most popular form of flat roof in the UK; it is made from Glass Reinforced Plastic (GRP), a material consisting of plastic strengthened with glass fibres. This type of roofing is extremely popular because it’s strong and durable, but it doesn’t add too much weight to the building. GRP Roofing also lasts a long time; experts say it can last for at least 25 years.
Our GRP roofing sheets were designed to withstand harsh environments, and they’re a preventative measure against leaky flat roofs for the long term. GRP rooflights are used to provide natural light into a building; their use reduces the electricity costs of running the factory or building, which is a highly effective method of saving money in the long term.
Our Alltite Metal Roofing Systems Ltd team of highly skilled contractors can install GRP rooflights and sheets to the highest standard possible. We are the first choice for many customers when they require GRP fibreglass roofing contract work to be undertaken, which is why we have been serving Lancaster for over three decades.
GRP roofing sheets and rooflights
Along with our GRP roofing sheets, we can also supply and fit roofing lights for you. Wear and tear on roof lights in a sheeted roof construction is always a common cause of leaks and light reduction into a building; therefore, when overcladding a roof, it is advisable to change the old roof lights before installing the new roof
cladding.
Our roof lights and GRP roofing sheets provide an even balance of natural light within any industrial building. This system saves both electricity and energy costs by reducing the need for artificial light. When installing a composite panel roof, we use factory-sealed and assembled GRP roof lights, in which Alltite Metal Roofing Systems Ltd install either a double or triple skin, depending on the U-value required and the requirements of the build.
Call our team today for trusted support and advice.

Benefits and professional installation of GRP systems
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Low maintenance – Once the lights or sheets have been installed, there’s almost nothing you need to worry about, apart from the occasional time they need cleaning.
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Reduce ongoing costs – When properly installed, GRP roof lights will last an extremely long time, and their lifespan is much longer than other industry types.
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Natural light – Of course, installing GRP roof lights and sheets allows a greater volume of natural sunlight to enter your building. This results in less cost needed for artificial light.
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Durability – This type of roofing is forceful and durable, meaning it is able to withstand harsh weather environments.​
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No leaks – GRP Roofing is a preventative measure against leaks in roofs for the long term.See our gallery for finished pieces.
We ordered steel cladding roof sheets bolts and flashings from altite , very happy with the items and the service we recieved , delivery was fast and efficient . overall very helpful would definitely recommend to family and friends .
- Sheryden Carss, Google
Brighter, more efficient roofing with roof lights and sheet installations
Call to speak directly with our experts.

