Unequal Slope Hip Rafter Calculations

[smokiethebear]

Your videos are helping myself and a couple other apprentices get through our second terms of general carpentery in Southwestern Ontario! Thanks for the videos!

[TersooJacob-twyj]

Weldon for the work and I appreciate you for your efforts for making some us to understand how hip roof being measured.Thank you and God bless you.

[johntalo]

You are so kind brother to share your experiences and knowledge to a man like me who eager to learn building measurements.God bless you.

[OhJeezRanders]

Not sure if you still check the comments… thanks a lot for this.

When we were learning this in class, we used a run of 15 for the hips instead of 16.971, could you explain to me where the 15 comes from? I understand that the hip run is the square root of the product of 12/12 for a 45 degree angle, just very confused where the 15 comes into play. Is this a common ratio between different slopes?

[canadasalami]

As a former student preparing for the exam I can say these videos are very helpful!

[williamhospodor]

Can you do some videos on bastard roofs and matching facia on unequal pitches?

[johntalo]

I love your explanations very clear as Solomon Islander.pacific.

[gprooftheory]

That is all fine and dandy for a fine line drawing, when you add wood things change dramatically. To have the same over hang you have to raise the heal height of the steeper pitch to meet at the same time, therefore the hip will need to shift from the corner to make the hip plane at the wall plates at the Same point, also when you add a ridge board. your half span for the 5/12 would be 95.25 95.25 run/setback and for the 8/12 would be a 59.527 run/setback. The ridge board would be 97”, that is not a correct drawing for a wood framed roof weather it be hand cut or roof trusses having the same overhang. That drawing shows both the wall corner plate and Facia being in the same line, that does not work with having to make the heal height taller for the 8/12

[chiller]

So if you swing the hip rafter over to the steep side dd you make the height above plate the same as the commons on the steep side? or do you have to do something else to the hip rafter to get the hip in plane with the steep side and the shallow side? Thanks for any help

[chiller]

Thanks a lot for this video it’s very helpful! Just curious, since the hips are not running at 45 degrees how would you know what angle they are running at so you could cut your Jack cuts. Thanks for any help.

[stillhere]

I know this is an older video but it's worth a long shot, thanks in advance.

Building a one sided porch irregular hip roof, so this is what I got, need help with out end rafters and all pitch,

Lenght is 23' + 1ft and each side for hangover
From ridge face to the width is 74" + 1ft hangover
The ridge is 16ft wide
Between the outer wall height is 94" and top of my ridge is 108.5"
With a difference of 14.5" between 74"
Any help will be appreciated

[Sherlockly]

What’s the equation needed to get to the hip true length if I have the hip run and rise?

[nlrmtraindetailwalker]

I'm a union trade carpenter I been in trade now approximately 30 years now and I will like to take classes I live in Cincinnati Ohio
If I may ask where do you live and do you actually teach how to step off with framing square ?
I'm really interested in taking roof framing classes

[williamhospodor]

What is the book called? I’m trying to find it online to buy?

[carpentryandwoodwork]

Normally I would do this using degrees etc but Yes an interesting video!

[gilbertososa]

Great video. As an educator, I see the need to teach this type of applied mathematics. This work would make a great student project in a geometry or Algebra 2 class. Can I get this sheet in a pdf form? Cheers!