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How to Fibreglass a roof with Resin

How to Fibreglass a roof with Resin

How to Fibreglass a roof with Resin

Before you start any roof its a good idea to learn How to Fibreglass a roof with Resin first, either by watching some videos or using our site content. first off, Unroll 1m of the previously cut mat along the lowest part of the roof and align so it can be unrolled across the roof without running off-line. Carefully roll the mat back.
To get a ratio of 3:1 one-third resin should be applied on the board and two-thirds resin on the mat dip the 7” polyester roller into the bucket of the catalysed base resin. Lift the roller out of the bucket and without letting the excess runoff, drop 3 rollers full onto the board and coat 1 square metre. This will ensure that there is a ratio of one-third resin on the board.
Unroll the mat onto the resin-coated board. In strips of 7” (1 roller width) wet out the mat by dropping 1 roller full in the middle of each 7” run, push the roller away to the end of the 1-metre run, then pull back over the full 1 metre (figure 4. IN THE FULL GUIDE) Continue across the 1m² (approximately 6 runs) and then roll the roller over the whole area again to ensure good even coverage. Wet out the next 1m² of the board in the same way, remembering to use one-third of the resin on the board and two-thirds of the resin on the mat. Roll out the mat over the next 1m² of wet outboard and continue to roll out the resin as previously described. Consolidating Let the resin soak into the mat to break down the emulsion binder for 2 to 3 minutes.
Using the paddle roller and applying a little pressure, roll back and forth along the 2 edges and the end of the wetted-out mat, feathering them in as you go. Now roll the paddle roller over the whole of the wet-out mat, ensuring the paddle roller makes at least 2 passes over the whole area. In colder weather, the resin will be thicker and will take a little longer to wet out.
When a laminate is correctly wetted out it should be transparent, there should be no white or opaque areas. Take care near the edge of the roof and in windy conditions as a fine spray will be emitted from the roller.
Make regular close inspections of the laminate as it is consolidated, checking for ‘pinholes’ and areas short of resin. Pinholes in the laminate will lead to porosity and water penetration. On all overlaps of the mat, pay extra attention to the ‘feathering in’ as this will improve the overall appearance of the finished roof.
• Never attempt to lay a roof in wet weather or when wet weather is forecast.
• If it starts to rain while you are laying a roof, the roof must be covered and must not get wet, always keep a large visqueen sheet on-site to cover the roof. The Visqueen will not bond to the curing laminate
• If rain is forecast while laying boards, the boards can be temporarily sealed with a coating of catalysed resin. Always ensure that as much of the roof is covered as possible, and ensure that edges or areas of possible water ingress are covered.
• If decking has become damp, do not attempt to lay laminate on top.
• Always ensure that the surface you are laying on is completely dry and free from debris before you start. A wet surface can lead to delamination.