Suspending weight from roof trusses ztengguy structural 25 jul 13 12 57 if its only one truss just sister or place a steel beam or gluelam next to the truss and support the load.
Suspending roof rafters.
Allowable spans for joists and rafters 1 7 lumber grade floor joists ceiling joists 5 rafter ceiling joist combination rafter ceiling joist combination rafters 6 douglas fir.
Rafter slope tie spacing inches roof span feet 12 20 28 36 required number of 16d common nails per connection 3 12 12 4 6 8 10 16 5 7 10 13 24 7 11 15 19 32 10 14.
One proposes suspending the new furnace from the rafters.
Screw the flashing to the.
This is a much more robust method.
The roof rafters provide integral structural support to the roof.
Cut a piece of flashing with the tin snips at least 2 inches larger than the damage.
All three offer a lennox g60v this is houston remember not so cold in winter so the g61v is not really worth it which is supposed to be about as quiet a blower as you can get.
All connections of rafters ridge board and ties were nailed.
System sits on rubber cork vibration isolators.
Before you cut your boards you ll need to measure the width of your building and calculate the exact length of each rafter.
The rafters were tied at every other pair at the top and near the springing the point where an arch or roof rises with a vertical hanging tension member between the two all ties and tension members of 2 inch by 4 inch ungraded lumber fastened with 16d nails.
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.
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 doesn t really address the op s question but the system pictured does look pretty flimsy.