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how do you use a roofing square


 
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Wildcelt

from United Kingdom

Joined: 28 Mar 2006
Posts: 2
Location: London,
United Kingdom

PostPosted: Tue Mar 28, 2006 5:29 pm Reply with quote

Hi all newbie here i was wondering how do you use a roofing square and it's convertion tables,i feel a bit embarrased as i did C+J for two years at college but i never moved on to roofing,any help guides or links would be great,because it baffles me?
Thanks
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mr_mike

from United Kingdom

Joined: 27 Mar 2006
Posts: 88
Location: London,
United Kingdom
Thanked: 1 time

PostPosted: Tue Mar 28, 2006 6:48 pm Reply with quote

Hello Wildcelt,

Being a red-faced 'Newbie' meself, and not being a roofer, I would let one of the real 'red back's' tell you how to use one, but (very briefly) they work roughly as follows :

To set out a roof, the rise of the roof is set on the narrow bit (the tongue) and the run of the rafter is set on the the wider bit (the blade), you'd then normally set the rise and run on the square by scaling down your measurements by ten. E.g. 3.5m becomes 350mm and so on. You join the readings on both scales using a batten or the like, and you get your various required lengths and angles from these readings.

The tables that are often on them give rafter lengths per metre run for 'standard' pitches.

That's as much as I know about roofing squares ! Over to one of the Pro's !
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noseall

from United Kingdom

Joined: 02 Feb 2006
Posts: 19844
Location: Staffordshire,
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PostPosted: Tue Mar 28, 2006 7:08 pm Reply with quote

a scientific calculator and a 305mm de walt chop saw is what i use. oh and a tape measure........level...... hand saw......hammer...........nails....blah blah!
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splinter

from Antarctica

Joined: 10 Apr 2004
Posts: 778
Location: Antarctica
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PostPosted: Tue Mar 28, 2006 8:59 pm Reply with quote

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