How To Suspend Roof Rafters

Roof trusses support a roof s weight by transferring the weight load downward and outward to the building s bearing walls.

How to suspend roof rafters.

For instance 2 grade 2x4s at 16 on center will span just over 9. The boards creating the slope of the roof are wider than lumber used to build trusses 2x8s 2x10s and 2x12s are most common in rafters vs. Install these over your existing horizontal 2x6s 2 feet from the roof edge inside and paralel to the roof ends crosswise from your existing 2x6. The ridge end of the rafter and often the eve end will need to be cut to the angle of the roof slope.

The roof on this shed is a 4 in 12 slope which makes it a 18 and. There is no standard spacing it depends on what size of rafters you want to use and the span of your shed. The roof rafters provide integral structural support to the roof. The first step in building the roof rafters is to cut one rafter board to length with the ends angled properly and then to mark and cut the birds mouth and seat on the rafter.

Rafter boards are fastened to the ridge board at the peak and the top plate where they join the wall. For standard shed roof rafter spacing see rafter span chart. This is all on the assumption that the beam is there to only support the ceiling system only and nothing else. If you re framing a gable roof on a new house or building a shed or even a doghouse with a gable roof you ll need to cut a number of roof rafters.

This is a much more robust method. Take 2 6x4 as long as your longest stored lumber and cut 2 inch deep grooves in them as wide as your 2x6 is thick every foot or so. The roof rafters are not being touched so the issue of outward force would not be an issue as long as we are not touching them. The hvac installs i generally see have the airhandlers suspended on all thread bolted to the rafters and connected to two pieces of unistrut as a saddle.

Before you cut your boards you ll need to measure the width of your building and calculate the exact length of each rafter. System sits on rubber cork vibration isolators.