4/27/2024 0 Comments Metal roof rafter spacing![]() We recommend splitting up your notes to make this step easier. This will give you the total length of battens needed for each side of the roof. ![]() Multiply the number of rows in each section of the roof by the length of the eaves for that specific section.Note these measurements down separately but do not add them together. Measure the length of the eaves for each section of the roof.You can do so by following this easy method: To ensure you have enough battens to cover the square metreage of your roof, you’ll also need to calculate the total length of batten material required. Therefore, the batten spacing for this roof should be 325mm. 5200mm (distance from bottom to top) ÷ 16mm (number of tile rows) = 325mm.5200mm (distance from bottom to top) ÷ 330mm (maximum tile gauge) = 7mm rounded up to 16mm.After measuring, the distance from top of the bottom batten to top of top batten is 5200mm.400mm (length of tile) - 75mm (overhang) – 25mm (nib) = 300mm (distance to next batten).This will give you the batten spacing for your roof, or its batten gauge. Divide the distance between the top and bottom battens by the number of courses.This will tell you how many courses are needed to tile your roof. Measure from the top of the lowest batten to the top of the highest batten, then divide this number by the maximum gauge recommended by the manufacturer, and round this up to the nearest whole number.Once you’re happy that this is correct, fix the batten into place. Make sure that the batten is placed so that the ridge tiles will overlap the top course of roof tiles by around 75mm. ![]()
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