A range of trims designed to give a professional finish to built up felt
and mastic asphalt flat roofs.
FELT
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ASPHALT
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Fixing Instructions
Method of Fixing
Nutrim should be fixed by means of Cadmium or Galvanised nails or screws at not more than 300mm (12") centres with the ends of each length firmly secured. A minimum of 8 fixings per length is recommended. A gap of 3mm should be left between each length to allow for expansion.
Priming of the fixing leg is recommended.
Built up Felt Roofing
The first layer of felt should be dressed over the kerb and the Nutrim
fixed into position as described.
The top layer of felt is laid in a similar manner over the trim and the top
edge turned into the hood thus eliminating the outside edge of the top
layer of felt lifting.
Mastic Asphalt Roofing
Where Nutrim is used with mastic asphalt this can be fixed in position prior to the laying of the asphalt. On timber kerbs the sheathing felt and expanded metal lathing should be fixed to the inside edge of the fixing arm. On concrete roofs the sheathing felt is stopped at the base of the kerb. The mastic asphalt skirtings are then laid with the top edge turned into the protective hood of the aluminium trim.
Angles 90°
External and Internal angles are cut and welded at our own works and measure 200 x 200 mm.
Jointing Spigots
One jointing spigot per length of trim plus one per angle supplied free of charge.
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