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The Imperial Roofing Square
The Ultimate Roofing Square makes building a pitched roof effortless and quick. This imperial version uses Inches instead of MM.
Designed by time served carpenters and refined over years of real world usage this is the only tool you will ever need to quickly and accurately pitch a roof.
By incorporating 4 tools into a single tool the Ultimate Roofing Square by Essential Carpenter Tools provides everything you need to make pitching a roof easy and error free. Using the Ultimate Roofing Square to pitch a timber roof gives confidence that the job will be completed quickly, correctly and without costly errors.
With the clear and simple information supplied with the tool even self builders are able to pitch their own roofs.
Check out the YouTube video and see how the Ultimate Roofing Square makes pitching a roof accurately an effortless task
- Using the Ultimate Roofing Square from Essential Carpenters Tools is as easy as 1, 2, 3…
1/ Set the roofing square to the required pitch and lock into position
2/ Calculate the Half Span by measuring the overall and dividing by 2 (less half the thickness of the ridge board)
3/ Look up the Half Span on the supplied Roofing Chart to give you the necessary ‘multiplier value’ (see ‘Roofing Chart’)
4/ Calculate the Rafter Set out Length (RSL) by multiplying the Half Span by the multiplier value from the supplied Roofing Chart
5/ With the roofing square fully assembled, (sliding arm in place) slide it until you have approximately a third of the depth of the rafter and lock
6/ Measuring from the plumb cut, mark the RSL and place the Ultimate Roofing Square on the face of the rafter and mark the birds mouth cut out
Repeat until all the rafters are complete. Happy roofing….
Worked example – if Roof Pitch is 40º and Half Span is 2500 cm, then:
1/ the Essential Carpenters Roofing Chart says the Multiplier Value for a 40º roof is 1.305
2/ the Rafter Set out Length (RSL) is calculated simply as – 2500 (the Half Span) X 1.305 (the Multiplier Value from Roofing Chart) = 3262 cm
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