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RE: Sloped Rafter Bearing

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As others have said it depends on the builders preferences.


Planing a bevel to the top plate would be a simple one-off exercise for the project, followed by simple installation of rafters. Whilst variable pitch connectors require setting for each and every rafter installed. Builders however don’t always want the fastest approach; it depends how far away in time their next contract is.


Another factor is the extent of the requirement. If it only affects a small portion of the roof then variable pitch connectors maybe the simpler least expensive option. If it affects a large portion or all the roof, then the beveled top plate would tend towards being more economical.


Generally labour is more expensive than materials so it is how the structural form influences the labour content that determines what is the more economical solution.



Conrad Harrison

B.Tech (mfg & mech), MIIE, gradTIEAust



South Australia

From: Doug Mayer [mailto:doug.mayer(--nospam--at)]
Sent: Wednesday, 5 December 2007 13:56
To: seaint(--nospam--at)
Subject: RE: Sloped Rafter Bearing




I don’t necessarily need a beveled top plate for shear transfer.  The original question is whether a beveled top plate or a variable pitch connector is more economical for a sloped TJI in bearing.  It seems from the responses I have received, like so many things, it depends on who you ask.  =)  Oh well.




Doug Mayer, SE

Structural Engineer


From: Jnapd(--nospam--at) [mailto:Jnapd(--nospam--at)]
Sent: Tuesday, December 04, 2007 5:30 PM
To: seaint(--nospam--at)
Subject: Re: Sloped Rafter Bearing




If you need beveled plate for shear transfer why use adjustable pitch connector.


Joe Venuti
Johnson & Nielsen Associates
Palm Springs, CA


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