Seasonal Weather Conditions for Fibreglass Roofing

Seasonal Weather Conditions are a factor to be considered when fibreglass roofing

Advice when using GRP during winter months

Fibreglass Roofing Scotland will not take chances we have the up to date met office report and always check the weather forecast to ensure conditions will be suitable for fibreglass roofing.

During the winter, avoid topcoating a roof after 2.30pm unless it is a clear bright day and not too cold. The heat from the sun contributes a great deal towards the curing of the laminate during colder months. After the sun has set, it is unlikely that the topcoat will cure over night. If left uncured, the topcoat may cure with debris and leaves stuck to the surface, or with an undesirable finish if it rains.
Fibreglass Roofing Scotland ensure that the surface temperature of the boards is checked before laying the resin or topcoat.

Fibreglass Roofing Scotland ensure that the resin is warmed before use if the ambient temperature is below 10ºC. This can be achieved by leaving it in a warm room the night before a job.
We do not use resin or top coat in temperatures below 5ºC.
If it begins to rain,our operatives are instructed to stop immediately and cover the roof with a visqueen sheet, keeping the roof as sheltered as possible, the decking will need to be completely dry before continuing.
If we are unable to laminate over a prepared deck before it will rains, then we coat the decking with catalysed resin and cover any exposed edges. This will seal the deck and prevent moisture uptake until the laminate can be applied.
Fibreglass Roofing Scotland always ensure the deck or substrate to be laid onto is completely dry before laying the laminate. Sweep off any excess water and mop up the excess with dry cloths before allowing the roof to dry naturally.
We do not start to lay a roof if a period of rain is forecast.

Advice when using GRP during summer months

Fibreglass Roofing Scotland do not use resin or top coat in temperatures above 35 degrees C.
We will mix smaller batches of resin then you normally would to give adequate time to apply it before it starts to catalyse.
We will use LPT catalyst in hotter weather if the resin starts to cure too quickly.

summer on roof

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Fibreglass Roofing Scotland apply the laminate in the shortest runs possible across a roof. The shorter the length of laminate, the less likely it is that the resin will catalyse before it can be consolidated into the CSM.
Fibreglass Roofing Scotland use a temperature sensor to measure the surface temperature of the laminate before applying the topcoat. If topcoat is applied to surfaces at very high temperatures, the wax component of the topcoat will melt and the topcoat will remain tacky to the touch, this will usually mean that any loose debris will stick to the roof and the colour of the topcoat will also be impaired.
If possible, topcoat the roof out of direct sunlight or wait until later in the day before applying it, it may mean that the roof will take you longer to complete but it will save you time spent returning to the roof to re-topcoat it at a later date.

Fibreglass Roofing Scotland ensure that the resin is warmed before use if the ambient temperature is below 10ºC. This can be achieved by leaving it in a warm room the night before a job.
Do not use resin or top coat in temperatures below 5ºC.
If it begins to rain, we stop immediately and cover the roof with a visqueen sheet, keeping the roof as sheltered as possible, the decking will need to be completely dry before continuing.
If Fibreglass Roofing Scotland are unable to laminate over aone we can be proud of prepared deck before it will rain, then coat the decking with catalysed resin and cover any exposed edges. This will seal the deck and prevent moisture uptake until the laminate can be applied.
Always ensure the deck or substrate to be laid onto is completely dry before laying the laminate. Sweep off any excess water and mop up the excess with dry cloths before allowing the roof to dry naturally.
Do not start to lay a roof if a period of rain is forecast.

Taking the Seasonal Weather Conditions into consideration help us to ensure a good quality job one we can be proud of.


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