I have two floors of an old Victorian/Edwardian townhouse, where I have a bathroom on each floor. The waste pipes run up the corner of the building, and to allow for this one of the joists terminates in a small joist at 45 degrees to the other joists. Seen here:
There are several issues here.
This shows the notches:
How bad is this? Should I be overly concerned?
I plan to replace the lower bathroom first (soon), and will install a dropped ceiling so that the waste pipes can be routed under the joists. That will let me repair the main notched joist.
What size and length of joist should I use to sister the main joist when repairing it?
I'll probably need to remove the angled joist in order to get holes drilled and botls into the main joist, so I may as well replace it with a slightly longer joist so that the left end rests in the wall.
Would I need a prop to support the cantilevered joist? The toilet and WHB of the upper bathroom are directly above this joists, so its not possible to walk directly above it. Its possible the floorboards are supporting it to some extent.
Any other advice appreciated.
Thanks
Ian
There are several issues here.
- The left hand end of the angles mini joist is *not* supported by the wall (as I suspect it should be).
- The angled joist *and* the joist second from left have extreme notches cut in them to allow for the upper shower waste. There is only 80mm remaining of the 225x75 joist!
This shows the notches:
How bad is this? Should I be overly concerned?
I plan to replace the lower bathroom first (soon), and will install a dropped ceiling so that the waste pipes can be routed under the joists. That will let me repair the main notched joist.
What size and length of joist should I use to sister the main joist when repairing it?
I'll probably need to remove the angled joist in order to get holes drilled and botls into the main joist, so I may as well replace it with a slightly longer joist so that the left end rests in the wall.
Would I need a prop to support the cantilevered joist? The toilet and WHB of the upper bathroom are directly above this joists, so its not possible to walk directly above it. Its possible the floorboards are supporting it to some extent.
Any other advice appreciated.
Thanks
Ian