Rafter Ties For Lean To Roof

Lean to rafters then connect to a ledger board against a wall of another shed or house.

Rafter ties for lean to roof.

A lean to roof also called a shed roof slopes in one direction with rafters that rest against another structure at their high end and overhang support posts or an exterior wall at their low end. Rafter ties or ceiling joists acting as rafter ties are required by code unless the house is designed so that the walls or a structural ridge beam carries the full load of the roof. You can possibly remove them altogether of you include posts in the gable walls to support a structural ridge. If you are framing a cathedral ceiling there are a couple ways to deal with the need for rafter ties.

For pricing and availability. From a practical perspective it s difficult to use high rafter ties on a low pitched roof because the force in each tie increases with the inverse of the pitch. Simpson strong tie 6 in 18 gauge triple zinc steel rafter tie. You can use common rafters on any shed roof but they make the most sense when constructing a gable roof or lean to type shed roof where they can sit on or attach to top plates of a wall.

If your garage is 24 feet wide and has a 4 12 roof the new rafter ties can be placed no more than 16 inches up from the plate without additional engineering.