Holing gauge for holing slates.
Roof slate batten gauge.
Should you need to re hole slates firstly we need to know the gauge calculate this by using the maths below.
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The holing gauge can be calculated as.
Height of slate minus desired headlap divided by two gauge i e.
The result is the number of courses of tile on the roof rounded to a whole number.
Arrange the second batten above the fascia batten to the tile gauge recommended by the tile manufacturer.
The result is the number of additional battens you require.
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For example 25 x 50mm battens are required for single lap modern roof tiles laid on rafters with a 600mm span.
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Measure the height of the roof from the top of your second batten to about 30 millimetres short of the top of the roof.
Holing gauge mm battening gauge mm m batten per m2.
Batten gauge length of slate headlap 2.
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For a 500mm long slate with a 100mm headlap the gauge is 500 100 400 2 200 so we know the gauge is 200mm.
Roofing battens are nailed into the rafters or roof joists or trusses and provide support for the roof tiles or slates.
Divide your height measurement by your tile gauge.
Measure the distance from the top of the lowest batten to the top of the highest batten.
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Divide the distance by the maximum gauge of the tiles being used and round the result up to the next largest whole number.
This calculator will estimate the following number of slates required per square metre.
Holing gauge batten gauge headlap 10mm.
Holing gauge mm battening gauge mm m batten per m2.
The most commonly used slate size in southern england is 500x250mm and 400x250mm in scotland and the north of england.
Tile batten gauge for slate.
Total linear run of tile batten in metres.
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The supplier of the slates should recommend the spacing up the roof between the battens known as the gauge this usually varies according to the size of the slates the pitch of the roof and the degree of exposure.
Please enter the dimensions in the white fields below and click calculate to show the results.
Slate length mm battening gauge mm m batten per m2.