Used where flat roof butts against existing wall and creates a 45-degree angle to deflect rainwater from wall to roof. Can also be used for gutter lining. It will also provide expansion and perimeter ventilation and is compatible with C2 and C3 universal corners.
Girth: 260mm; Fillet: 135mm & 70mm; Upstand height: 120mm; Length: 1.5 metre / 3 metre
Place the D trim against the vertical face and push down diagonally into the corner until the trim fits snugly. Where the D trim needs to be joined it should be bonded with a strip polyurethane adhesive and bandaged together. The C trim is usually fitted into a bed joint of the brickwork or a 35/50mm (depending on the trim type) deep chase cut out with an angle grinder fitted with a mortar chase disc. Apply polyurethane adhesive to the back of the C trim every 300mm. Fit the trim into the slot and press firmly back to the wall to overlap the D trim.
Apply a clear silicone sealant along the length of the trim into the slot to seal the trim in. A smooth finish can be obtained by wiping the sealant with a moistened finger.
Roof trims should be measured and cut to size with a 'snips' (to reduce dust). A dab of roofing adhesive should be applied to the batons to prevent rattling in the wind. Roof trims should then be either stapled with s/s staples of nailed using 15mm clout nails into place every 120-150mm. Where two trims have to be joined together, ensure an overlap of 50mm and apply roofing adhesive to seal.
It is recommended that 15mm galvanised clout nail is used or s/s staples that will sit flush with the roof.
Whilst we would recommend GRP Trims with a fibreglass roof (the fibreglass will bond better). If you decide to use lead or metal trims, ensure the lead or metal is clean and free from contaminants. Use G4 sealer when overlapping with the fibreglass.
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