Thread: Need rise per metre length for builder trying to work out roof pitch

1. Need rise per metre length for builder trying to work out roof pitch

So, if length of horizontal side is 13.35m and pitch of roof is 1 degree what is the height of vertical side?

Sorry for lame question in such a comprehensive forum! Am a builder and having a brain blank.

Thanks for help.

2. Originally Posted by builder
So, if length of horizontal side is 13.35m and pitch of roof is 1 degree what is the height of vertical side?

Sorry for lame question in such a comprehensive forum! Am a builder and having a brain blank.

Thanks for help.
Hi builder, welcome to MHF.
Since the pitch is very small, you can write tanθ = h/L = θ.
Convert 1 degree to radian and substitute in the above equation to find h.

3. can u do it for me. I'm no maths genius!!!! your help would mean I can go to work tomorrow and get a roof on a clients house. Thank you for replying.

4. Originally Posted by builder
can u do it for me. I'm no maths genius!!!! your help would mean I can go to work tomorrow and get a roof on a clients house. Thank you for replying.
So h/L = π/180.
Now find h.

5. Originally Posted by builder
can u do it for me. I'm no maths genius!!!! your help would mean I can go to work tomorrow and get a roof on a clients house. Thank you for replying.
0.233m approx ie 233mm

6. thank you so much!

,

,

how to work out rise per metre run

Click on a term to search for related topics.