alt.building.construction

On 2008-02-17, Bobk207 wrote:

> Does the notch start at the end of the joist & only run "? IMO
> this isn't really much of a notch ....more of a depth reduction in
> the joist shear / bearing zone?

Yes, everything you say is right, it is a depth reduction needed for
clearance. The reduction from " to " is just under 25%, the
code maximum.

An immediate taper cut is not possible. The roof is constructed with
a 1x4 bearing on top of the 2x6 ceiling joists, and the 2x4 rafters
bear on the 1x4. Crazy 1908 construction. So I have to actually
reduce the depth to " where it is under the 1x4, hence the "
long end notch. I don't want to modify the roof construction, as that
would open a whole other can of worms.

> Timber is happier if you avoid abrupt section changes

So after the notch clears the 1x4 obstruction, I should do a taper to
increase the depth from " to " more gradually? Is a 45 degree
taper OK or should it be shallower?

Thanks,
Wayne