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9mm Capping Board Installation
1) All existing fascia material should be removed, and structural timbers checked for any evidence of rotting (and replaced, where required, using treated timber). Likewise the roofing felt should be inspected for any sign of damage and replaced accordingly.
2) All standard and ogee capping boards 150mm - 300mm in depth should be fixed to a 6mm external quality plywood backboard, ensuring the profile follows a straight line between the rafter. Although not advised if secured to an existing timber fascia, all rotten wood must be removed and replaced with timber that has been treated with a wood preservative.
3) The capping boards should be secured to each rafter using 2 x 50mm stainless steel nails. These products are not load bearing, and all roof tiles must be supported by a tilting fillet, which deflects the bottom tile from the top of the fascia.
4) The fixing of finishing trims follows the same procedure as the thicker Euroboard fascias, and guttering should be secured to every rafter using the manufacturer recommended fixing instructions.