How To Build Hip Roof With Unequal Span Lengths

This is the line of backing.

How to build hip roof with unequal span lengths. 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. Then lay the rafters out on a smooth flat surface with a 2 by between them at the ridge line. After they re up you can snap a line to mark and trim the tails in a nice straight line to make up for any ridge warp or marking cutting and fixing errors.

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. 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. Select the following information by using the drop downs to enter values in feet and inches. Major side roof pitch major.

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. You may wish to test these on the building before cutting the rest of the rafters. Span for the main rafters measure from outside of wall to outside of wall. Make a duplicate rafter from the pattern.

Major side plan angle. 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. Attach 4 6 centering rafters and lift the ridge beam into place. To calculate the length of a ridge in a hipped roof you simply subtract the width away from the length.

Measure to make sure the rise run and span are correct. Major side roof span building width ridge thickness 2. 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. There are lots of things to think about and consider when taking on a hip roof style so having a reliable all in one hip roof calculator is going to be very useful for this job.

Measure distance a along the unit run and mark.