how to tell roof angle?

Question

Me and brother in law are building a shed. the center of the roof is 6ft from the edge. the hieght to the top is 42" maybe off by two inches, measured to inside the 2x4. Anyway anyone tell me how to obtain the angle of the roof with this info. We were aiming for around 30 degrees but while on the roof it seemed a heck of a lot steeper.

Update:

Thanks a heap guys!!!

Favoured · Accepted Answer

Well, 30 degrees is fairly steep, and is just about what you're building.

Its calculated with the following formula:

tan(Z)=a/b  where Z = the angle    a = the run  and b = the rise.


So on a calculator, you divide 42 with 72 to get about .58
then you take the inverse of the tan to yield your answer, which is 30.2 degrees

Fudge · Answer

angle=tan^-1(42/72)=30.26 degrees

Anonymous · Answer

tell me your e-mail and i send you a drawing
kaksi_guy@yahoo.com

Trending News

how to tell roof angle?

3 Answers