Ledger Roof Framing

At the end of glenn mathewson s handling lateral loads january february 2012 he proposes connecting a 2x12 ledger one step down from a door threshold something many of us in snow country regularly do.

Ledger roof framing. The lower end is done the same way a skillion or shed roof is. There are several variables to consider when determining the proper rafter size. In this case the ledger should be mounted at the height that the ridge beam would. Shed roofs project as a single plane roof pitched away from the house.

The first approach to achieving a strong durable struc. If you are tying the roof directly to a house wall you can install a ledger board with flashing and install rafter ties to attach the rafters at the appropriate angles or use engineered trusses. The complexity of the job will vary with the size of roof from a simple entryway covering to one over a large screened in area. The strongest ledger connection relies on bolts that run through the ledger and the house sheathing and rim or band joist and then are fastened with nuts and washers affixed from the other side.

The second is to join a roof to an existing vertical wall in the case of building a porch or adding on a room. Weather you re building a shed roof or adding a dormer to your second story it is important to choose the proper size rafter. American forest paper association wood construction data 1. Detail of ledger framing system as drawn in building specimen platform framing balloon and ledger fastening a patio roof to the house hometips deck framing whats people lookup in this blog.

Details for conventional wood frame construction. Most house framing relies on building elements floors walls roofs being stacked one atop another. The high end of the rafter sits on or attaches to a ledger plate attached to the existing wall. Letters reader questions bolting ledgers to studs.

A ledger relies on the fasteners and strength of the wood ledger board and rim board of the house to carry the deck live and dead loads. Lean to shed roof framing. Flat roofs are more susceptible to leaking than pitched roofs. A ledger should be affixed to strong parts of the house s framing such as second floor joists or wall studs.

A common element in adding porch roofs is fastening one end to the house either to a wall or to a roof. This sizing guide for roof rafters will help determine what you need for your small project. Letters reader questions bolting ledgers to studs. That usually is done with a header or ledger board secured to the house.