Glass Fibre Roof Building Guide

Step by step guide to GRP roof building

MATERIALS/TOOLS REQUIRED

* May not be required

PLEASE TELEPHONE OUR OFFICES FOR YOUR MATERIALS ESTIMATE IF REQUIRED.

Step 1

• Cut fibreglass matting into 1m squares for ease of use
• Ensure that your catalyst is in a dispenser ready for measuring.
• Ensure that all tools and materials are at hand (see list in ?Tips before starting?)

Step 2

• If using plywood boards ensure that you nail or screw down securely.
• Sand down and fix trims and corners if required.

Step 3

• Mix Approximately 2kg of resin with the correct ratio of catalyst (approx. 10-20 ml Catalyst ? 1kg Resin) depending on weather conditions.

Step 4

• Working with 2m square of area using a brush or paint roller apply a thick coat of catalysed resin to your prepared surface.
• Immediately lay 1 square of matting to the wet surface. Using a brush apply more resin.
• Once the matting is totally wetted out (you will need to use approx. 1kg resin to 1m square of matting) proceed to the next step.

Step 5

• You are now ready to repeat the procedure with the second layer.
• You should always stagger overlaps of matting. to avoid a section becoming too thick.
• Coat the second layer of matting with resin and, using a metal roller, consolidate the 2 layers eliminating any trapped air and wrinkles.
• For large areas we suggest you use an extension handle in your roller to avoid constant stooping and stretching.

Step 6

• Move across to the next area and repeat steps 4 and 5, ensuring that the joints in each layer are overlapped by the succeeding layer.

Step 7

• Allow to harden for approx. 2 hours before applying Flow Coat

Step 8

• Applying the Flow Coat. This needs to be applied soon after the newly fabricated structure is ?hardened? to ensure a good bond. The Flo-Coat will provide the UV stable ?weather? or ?wear? suface.
• Mix approximately 5kg of Flow Coat with the catalyst (approx. 20ml ? 30ml of catalyst PER KILO of flow coat).
• Paint the catalysed flow coat to the surface of the whole roof with a large paint brush (you should aim for 600g of flow coat to 1m square).

Step 9

• If an aggregate finish is required it can now be applied (while surface is still wet)

Step 10

• Roof should be dry and ready to stand on within approx. 3 hours depending on weather conditions.

TEL: 01268 696094 EMAIL: support@cyb-glassfibre.co.uk

Note: Plywood boards can be pre-primed with resin if rain is forecasted to prevent water ingress to the surface.

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