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About Regular Hip Rafter with Jack Rafter with Lip cut par rembarrement

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About Regular Hip Rafter with Jack Rafter with Lip cut par rembarrement Empty About Regular Hip Rafter with Jack Rafter with Lip cut par rembarrement

Message par roberts Dim 1 Mar - 10:49

I have been through this blog and reproduced the diagram (and the angles!) successfully.
I can thoroughly  endorse this way of getting to know how it all works.
For those wanting also to do this, here are the basic parameters:
  Profile/Jack rafter slope: 52°; eave angle 90°
giving:
  Hip rafter slope: 42.15°
  Hip rafter backing angle: 33.86°
  Jack rafter:
    - coupe alignement: 31.62°
    - coupe aplomb: 38.00°
    - coupe lip: 19.38°
These values agree when:
- measured on a printout of Michel's document:  RegHipJackwLipRembarrement.pdf,
- measured on the SketchUp drawing that I made,
- calculated using Sim Ayer's Android app "Rafter Tools".

I went a step further and produced a "rolled-out" version of the cuts at the head of the jack rafter:
About Regular Hip Rafter with Jack Rafter with Lip cut par rembarrement Jack_r11

I put this information here to encourage other Apprendre la Charpente blog readers to do the same.
Any feedback would be interesting !   Michel is doing a great job.

roberts

Messages : 8
Date d'inscription : 15/08/2014
Localisation : Nr Brussels, Belgique

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