These battens were developed in conjunction with the bre and meet nhbc requirements for fully graded roofing battens.
How to felt and batten a roof uk.
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.
Generally battens should be parallel to the eaves and ridge lines.
Jb red battens from marley is a high quality roofing batten that is pre graded and meets the performance requirements of bs 5534.
Ensure that full support is provided to fix the ends of the battens at hips and valleys.
Work along the roof taking out any excess slack in the felt but do not pull it tight.
John brash is the uk s leading manufacturer of graded timber roofing battens shingles shakes scaffold boards and commercial anti slip decking.