Gable Roof Overhang Framing Details

Gable end overhangs constructed using the ladder detail.

Gable roof overhang framing details.

An eave is the edge of the roof that overhangs the face of a wall and normally projects beyond the side of a building. Nail 2 boards onto your walls as top plates. That rafter outside forms the overhang for the barge boards to fix to and so the soffit boards and ventilation are continuous all the way around the structure. The diagonal plates are 3 1 2 inches down from the tops of the rafters to support 2x4 lookouts for framing the rake.

You ll need to build gable ladders also called soffit ladders. Along the edges of the sheathing and every 8 in. This can be from two causes. Sheathe the walls and roof with plywood.

The triangular part of the gable wall is built after the rafters are installed. This configuration gives the look of an open eave but it has the same benefits ease of maintenance and energy performance as a closed eave. Fill in the gable end studs after the rafters are complete photo 11. Along all other studs.

That is their functional purpose. When you nail in the second boards offset the seams of the upper and lower layers by at least 24 in 61 cm. The picture above shows the plan view of a gable roof. Begin by measuring from your extended fascia to the peak of the shed.

Uplift of roof decking at the overhang. After the end points of the plates are located the length is found using a base 1 triangle for a 6 in 12 pitch where the hypotenuse is 1 118 times the length of the base. The other common wind related failure at gable ends is uplift of the roof decking at the overhang. Adding an overhang to the gable ends of your shed is a similar process to framing out a new one.

Complete the soffit and overhang details according to the plan figure a. Gable end details for closed eaves. Eaves form the overhang to distribute water clear of the walls. Inadequate nailing of the sheathing to supporting framing or inadequate connections of the framing at the rake edge that supports the roof.

They also help to frame windows on upper stories. The cleanest look for a gable end with a closed eave is to angle the soffit therefore eliminating the need to resolve the eave at the gable end. Use 8 penny nails to attach the first 2 in 4 in 5 1 cm 10 2 cm board to the wall studs. Ladder trusses are made up using four noggins bridging at each corner to support a rafter outside the building.

Drive 8d nails every 6 in. Framing a gable roof building a gable with barge end purlin struts and collar ties.