How To Felt And Batten A Roof Uk

John brash is the uk s leading manufacturer of graded timber roofing battens shingles shakes scaffold boards and commercial anti slip decking. John brash works closely with specialised sectors of the construction industry delivering market leading environmentally sustainable best value and quality timber products. These battens were developed in conjunction with the bre and meet nhbc requirements for fully graded roofing battens.

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When the first length is complete lay the next layer of felt on top of the first so that it overlaps by at least 100mm 4 inches horizontal overlaps where one roll ends and the next one is started should be at least 150mm 6 inches.

How to felt and batten a roof uk.

A slight sag between rafters is ideal as it will allow any water to drain down the felt. Generally battens should be parallel to the eaves and ridge lines. Set the first batten at eaves so that the first course of tiles overhangs the gutter by 45 to 55mm or into the centre of the gutter whichever is the lesser distance. Jb red battens from marley is a high quality roofing batten that is pre graded and meets the performance requirements of bs 5534.

Work along the roof taking out any excess slack in the felt but do not pull it tight. Ensure that full support is provided to fix the ends of the battens at hips and valleys.