Ideal for both built-up felt roofing and mastic asphalt roofing, this Nutrim Aluminium Felt Trim should be fixed at no greater than 300mm (12") centres, using galvanised or cadmium nails or screws, with the ends fitted securely. With a recommended gap of 3mm left between each l... Read More
Ideal for both built-up felt roofing and mastic asphalt roofing, this Nutrim Aluminium Felt Trim should be fixed at no greater than 300mm (12") centres, using galvanised or cadmium nails or screws, with the ends fitted securely.
With a recommended gap of 3mm left between each length to allow for expansion, each length requires an advised minimum of eight fixings and priming of the fixing leg. When installing with built-up felt roofing, the initial layer of felt should be clad over the kerb with the Nutrim fixed into place. The final layer of felt can be placed similarly over the aluminium trim, with the top edge curved into the hood, removing the outer edge of the upper layer of felt lifting.
With mastic asphalt roofing, this Nutrim can be fitted into place prior to fixing the asphalt. For concrete roofs, the sheathing felt terminates at the bottom of the kerb. In the case of timber kerbs, it's recommended to install the sheathing felt and expanded metal lathing on the inner edge of the fixing arm. The mastic asphalt skirtings are then positioned with the top edge turned into the protective hood of this aluminium trim.
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