Input the pitch of the roof that you calculated above we ll use 7 12 for reference throughout on the framing square.
Framing on a trailer pitched roof.
On the body of the square the longer side input the 12 and input the 7 on the tongue the shorter side of the square by lining up the stair gauges at the corresponding point on the square.
Robin is working on an extension so we thought we d shadow him for the day and see how he creates a pitched roof or semi pitched roof leading up to a flat.
This will the first point of the rafter measurement line.
The amount of rafters needed will depend upon the size of the roof.
All of the truss designs are usually placed every 16 or 24 on center.
Position the square at the end of the rafter board with the tongue on your left and facing away from you.
Position the square with both the 8 inch on the outside edge of the tongue and the 12 inch on the blade on the upper edge of the board.
Measure down y height from the long point of the rafter cut and make a mark.
Bob confers with contractor larry landers as landers and his crew assemble the front porch framework on the wayland project house.
Here are some advantages of tpo roof overs.
Landers goes on to explai.
Build the rafters on the ground and then lift them onto the roof.
It is simply a reflective mat that can be rolled and applied directly to your roof or onto a frame fitted on top of the original roof.
Rafter layout with a framing square.
The rafters should be placed every 2 4 inches for proper support of the roof.
From one end of the rafter material using a speed square or framing square mark an x in 12 angle on the rafter and cut it.
This example is for a roof with an 8 12 pitch.
See common questions about mobile home roofs here.
The rafters should be in a triangular form with an additional piece of 2 x 4 going straight up the center.
For over 3 decades pitched roofs have been the most common manufactured home roof design.
Roof framing rafter layout.