Roof Lookout Spacing

Rafters must be strong enough to hold the roof sheathing and the shingles.

Roof lookout spacing.

I ll post a pic in a day or two. With or without subfascia. Or the crazy framers who sheath the roof with 7 16 sheets. The spacing between rafters in a given building is part of the engineering calculations that determine the required structure of the roof.

When not exposed it serves to fasten the finish materials of the eaves. Other relevant factors include the type of wood being used for the rafters the size of the rafters and the load that the rafters need to support. The same goes for using 1x pine as a sub fascia then wrapping with aluminum. 1030 automatic framing exposed.

Setting truss lookout spacing and viewing selected truss details training videos setting truss lookout spacing and viewing selected truss details. Learn how to adjust lookout on center spacing for lookouts and view truss details in this video. At the rakes a double row of fillers between lookout rungs are laid in top surfaces offset by the small fraction the outer row picks up the t g boards the inner row the osb. If i were to omit the subfascia in favor of simply using a 4 4 finish grade fascia board then i would insist on using the lookouts to stabilize the rafter tails.

505 creating a sip roof assembly. A lookout lookout rafter or roof outlooker is a wooden joist that extends in cantilever out from the exterior wall or wall plate of a building supporting the roof sheathing and providing a nailing surface for the fascia boards.