Simpson Strong Tie HRC44 Hanger Installation

This is my version of Simpson Strong Tie HRC44 Hanger Installation. Simpson website says to double bevel-cut hip rafter members to achieve full bearing capacity with HRC hangers. The HRC22 and HRC1.81 hangers for single hip rafters work correctly with a double bevel-cut on the hip rafters, so the hip rafters can intersect at the correct roof plane location point. However, the HRC44 hangers for hip rafters were not designed for double bevel-cut hip rafters. Simpson wants you to square cut the ends of the hip rafters to work "correctly" with their HRC44 hangers.  I find this very unacceptable when your installing hip rafters. 

In these pictures of the hip rafters with the HRC22 hangers you can that worked correctly with a double bevel cut on each hip rafter. 

I installed  HRC44 hangers about 5 years ago and don't remember how I got the HRC44 hanger to work with double bevel-cut 4x10 hip rafters. I must have beat the hanger into place or I cut the double bevel cuts differently or square. 

This time I cut some 4x6 blocks with a double bevel cut with zero pitch to determine what I needed to do to correct the installation of the hip rafters into the HRC44 hanger. 

With a 1/2" gap at the back of the HRC44 hanger with double bevel cut hip rafters I decided that notching the ridge beam an 1/2" would allow me to install the hip rafters into the HRC44 hangers with double bevel cuts, so I had could achieve full bearing capacity with HRC hangers. Where  the hip rafters intersect at the ridge, at the correct roof plane location point, I installed 2 -- 6" SDS screws from the hip rafter to the ridge to keep the hip rafter from rolling/ bending away from the ridge.

Roof Design using Dachausmittlung

On our Black Mountain job the house has a slopping ridge. However, it also has two valley rafters and two cripple hip rafters intersecting at the same point. I had asked the architect if he had drawn the roof plan in 3D, because the roof plan in this area with the sloping ridge didn't look correct. He said he used math to draw it out and for me to fix it, if it didn't work out correctly.

Joe Bartok might have been able to use math, trigonometry, to calculate the intersection of the  two valley rafters and two cripple hip rafters with the sloping ridge. However, the easiest way for me to find the intersecting point is to use Dachausmittlung (roof slope averaging).

The main profile rafter slope is 4:12 (18.43495°). The intersection of Valley Rafters and Cripple Hip Rafters determines the 22.27275° Roof Slope Angle on the front of this roof in plan view. By using Dachausmittlung (roof slope averaging) you can locate the intersection of the averaging lines and draw in the hip rafter in plan view to intersect the sloping ridge on plan view.