One of the strongest ways to frame a roof is using a hip roof design.
Framing rafters hip roof.
Hip rafters are the diagonal rafters that span from the ridge at the top down to the corners of the roof.
If the wall plates are all square of equal lengths then the hipped rafters would form a pyramid shape like the picture above normally a roof is rectangle and there are more yellow common rafters.
Measure back from this line and mark a second parallel line on both sides of the hip.
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.
If your project had a rafter length of 8 or less a safe and strong method is to use 2x8 framed 16 on center.
As a general rule roofs that have a high human occupancy rate should be framed with rafters every 16 structures such as sheds or barns can be frames with rafters every 24 again make sure to consult local codes.
Don t cut yet 2.
This is the line to cut along.
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.
To mark and cut hip plumb and side cuts with a circular saw print a paper template easy accurate or.
This is the pointy end.
The thrust to worry about is at the tails of the common rafters.
Hip roofs can be generally framed into a large variety of sizes that can be t or l shaped and may need a more complex frame structure.
Span for the main rafters measure from outside of wall to outside of wall.
They must must be on the same level.
The sheathing top plates hold the corners together.
Select the following information by using the drop downs to enter values in feet and inches.
Attach 4 6 centering rafters and lift the ridge beam into place.
Rick arnold frequent contributor to fine homebuilding and the journal of light construction presenter at jlc live the katz roadshow the remodeling show.
If you build a square hip roof you can do it without ceiling joists.
If the building is square and the sides are of equal length the roof planes will meet at a point as in a pyramid.
As compared to global roof framing hip roof framing is more difficult because it consists of four sides with variable lengths instead of two sides.
The planes of the roof slope up from every side so the framing braces the roof from all sides.
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.
