Placing joists onto wall with acute angle

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Placing joists onto wall with acute angle

Post by furio85 » Fri Aug 10, 2018 10:45 pm

So I'm putting some joists onto a wall plate but they are 8inch and the roof pitch means they won't get on the wall plate without me cutting them from the top, at an angle(i've provided an illustration as to how it would look). I'm just wondering will building control accept this? wouldn't it weaken the joists? Would be open to any suggestions thank you!
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Re: Placing joists onto wall with acute angle

Post by ayjay » Sat Aug 11, 2018 6:25 am

I've encountered this problem before and I'm not sure if there is a definitive answer.

I've done it, and the rafter returned to its full depth less than two inches away from the plate. This was accepted by Building Control but I don't know if we'd have got away with much more.

It's probably best that you discuss it with your building inspector.
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Re: Placing joists onto wall with acute angle

Post by Grendel » Sun Aug 12, 2018 11:51 am

In most cases where I have encountered this I've flown the joists over the outside edge of the wallplate andcut them off in line with the tops of the rafters then fixed everything together.
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