How To Build Hip Roof With Unequal Span Lengths

Repeat the same procedure on the side of the hip that faces the secondary roof using the hip pitch for that roof and measuring distance b.

How to build hip roof with unequal span lengths.

The first step in the process of erecting the hip roof is to get the ridge beam into place at the top of the roof. Span for the main rafters measure from outside of wall to outside of wall. Major side roof pitch major. Major side roof span building width ridge thickness 2.

To calculate the length of a ridge in a hipped roof you simply subtract the width away from the length. Hip backing angle 15 4 for a good straight fascia add an extra inch or 2 to the tails of all your rafters total length. After that you will have to try and find a good hip roof pitch calculator to make sure you can get the last of the calculations. Importantly though you must add the thickness of the ridge back on to that measurement so we can use the same common rafters already measured we ve removed the 50mm purple ridge from above so need to now add 50mm on to the new longer ridge.

Make a duplicate rafter from the pattern. This calculator will help you estimate hip roof parameters including rafters and roof area person outline anton schedule 2011 08 29 17 53 20 one of users asked us to create calculator which will help him estimate hip roof parameters like rafter s lengths roof rise and roof area. This is the line of backing. Select the following information by using the drop downs to enter values in feet and inches.

Measure distance a along the unit run and mark. Attach 4 6 centering rafters and lift the ridge beam into place. Major side plan angle. You may wish to test these on the building before cutting the rest of the rafters.

Then lay the rafters out on a smooth flat surface with a 2 by between them at the ridge line. The hip roof framing calculator returns the value of the main rafter the side rafter the length of the hip the height of the knee wall and the lengths of the jack rafters. Measure to make sure the rise run and span are correct. Place the 4 6 common rafters in their designated positions along the 2 longest walls and nail them firmly to the wall with a nail gun.

Minor side roof pitch minor.