Roof angles
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
2011-09-02
01:36 AM
- last edited on
2023-05-23
02:47 PM
by
Rubia Torres
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
2011-09-02 01:53 AM
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
2011-09-02 02:33 AM

- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
2011-09-02 06:04 AM
I don't know why the working units don't control this.
It seems someone got it to work once but it seems to be almost impossible to reproduce.
Barry.
Versions 6.5 to 27
i7-10700 @ 2.9Ghz, 32GB ram, GeForce RTX 2060 (6GB), Windows 10
Lenovo Thinkpad - i7-1270P 2.20 GHz, 32GB RAM, Nvidia T550, Windows 11

- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
2011-09-02 03:30 PM
Arcadia wrote:Save some favorites
Of course I can convert the deg/min/sec to decimal but that is a nuisance.

Architect, Consultant
MacBook Pro Retina, 15-inch Yosemite 2.8 GHz Intel Core i7 16 GB 1600 MHz DDR3
Mac OSX 10.11.1
AC5-18
Onuma System
"Implementing Successful Building Information Modeling"

- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
2011-09-08 08:09 AM
Arcadia wrote:I would be very curious to see what sort of framing square they use to measure a roof pitch like that. ( deg, min, sec ) and how it relates to side cuts for hip and valley rafters.
I don't always but I would like to be able to. Local building practise for traditional 'stick' pitched roofs in Western Australia refer to a range of roof pitches that are in degrees minutes seconds. Carpenters have a roof table book that provides them rafter plumb cuts etc based on these standard pitches. In most cases rounding up or down to the nearest degree or half a degree is accurate enough for the model but I will still prefer the option of using these settings. Of course I can convert the deg/min/sec to decimal but that is a nuisance.
If they have to convert it from deg, min, sec, why was it specified that way in the first place ? No matter where you are in the world, plans aught to be made specifically for the guy who is building it. No bastard pitch with out a very good reason.
ArchiCAD 25 7000 USA - Windows 10 Pro 64x - Dell 7720 64 GB 2400MHz ECC - Xeon E3 1535M v6 4.20GHz - (2) 1TB M.2 PCIe Class 50 SSD's - 17.3" UHD IPS (3840x2160) - Nvidia Quadro P5000 16GB GDDR5 - Maxwell Studio/Render 5.2.1.49- Multilight 2 - Adobe Acrobat Pro - ArchiCAD 6 -25
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
2011-09-08 08:25 AM
Here is the source of the tables:
http://smartcontractor.com.au/hancock.html

- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
2011-09-08 10:29 AM
All of the information you need to cut a rafter is derived from the framing square.
The framing square works with ratios not angles so there are no angles to measure. Everything is based on the ratio of rise to run. ( Pitch ) Side cuts for hip and valley rafters, difference in length of jack rafters, brace measure, scale of 8's, 100th inch scale, essex board measure, etc... it's all derived from the framing square. A good one is stainless steel, thicker at the heel, drilled at the inside corner so you can tune it for square with a nail set.
Sadly, the use of the framing square is becoming a lost art.
Is there any equivalent to the Framing Square in Australia or just a carpenters square like we have here that you can use for plumb cuts and such but without the other information on it?
Is that why they need a book...because there is no such thing as a Framing Square in Australia? Is it not a common practice in Australia to give the angle of the roof in pitch ( a ratio ) so the carpenter will not need to measure any angles? I am not trying to be difficult, I am just ignorant and curious about it.
ArchiCAD 25 7000 USA - Windows 10 Pro 64x - Dell 7720 64 GB 2400MHz ECC - Xeon E3 1535M v6 4.20GHz - (2) 1TB M.2 PCIe Class 50 SSD's - 17.3" UHD IPS (3840x2160) - Nvidia Quadro P5000 16GB GDDR5 - Maxwell Studio/Render 5.2.1.49- Multilight 2 - Adobe Acrobat Pro - ArchiCAD 6 -25
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
2011-09-08 10:52 AM

- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
2011-09-08 11:25 AM
We have books like that too. But they are for carpenters who don't know how to use a framing square. There is little or no information in them that can not be found on the framing square if you know how to use it.
So what I am interested to know is if the reason an architect in Australia uses deg, min, sec on his plans is because he is like most ignorant american architects and have no concept of how to use a framing square or is it is because Australian carpenters are like most American carpenters who don't know how to use a framing square either?
In other words is the art using the Framing Square something that has vanished from Australia like it is doing here, or was there never any such equivalent there anyway.
Do Australian carpenters typically work with a framing square and ratios or do they prefer to work with angles ?
It sounds to me like the reason for the books is because the carpenters would prefer to work with ratios and a framing square but the plans are not compatible when the architects use deg, min, sec for the roof angles.
Just like here, perhaps I would need to ask an old Australian carpenter rather than an architect about that.
ArchiCAD 25 7000 USA - Windows 10 Pro 64x - Dell 7720 64 GB 2400MHz ECC - Xeon E3 1535M v6 4.20GHz - (2) 1TB M.2 PCIe Class 50 SSD's - 17.3" UHD IPS (3840x2160) - Nvidia Quadro P5000 16GB GDDR5 - Maxwell Studio/Render 5.2.1.49- Multilight 2 - Adobe Acrobat Pro - ArchiCAD 6 -25