The diagonal plates are 3 1 2 inches down from the tops of the rafters to support 2x4 lookouts for framing the rake.
Framing roof overhang gable ladder.
To create an overhang on the gable ends of your shed you ll need to construct something called a gable ladder.
Ladder trusses are made up using four noggins bridging at each corner to support a rafter outside the building.
Framing a gable roof building a gable with barge end purlin struts and collar ties.
Hi oscar yours is a very good question.
I hope that i might be of assistance with the answer you seek on my 12 gable overhangs if you are referring to the overhang that rises toward the peak i let the roof sheathing overhang and build under that with the facia boards and back to the house with 2x4 framing which i plywood over i know that some inlay 2x4 s into the roof rafters back into.
The picture above shows the plan view of a gable roof.
Except for tack on ladders have the ladder framing extend into the roof a distance at least equal to the overhang.
To do this first make sure you cut your ridge board to a length that includes the length of the shed s rakes.
The other common wind related failure at gable ends is uplift of the roof decking at the overhang.
If the gable end overhang uses the ladder detail method of construction and the length of the overhang is greater than 8 inches to 12 inches you may be able to strengthen the connection of the overhang by installing from the attic inch diameter lag screws that are long enough to go through the gable truss or rafter through the wall sheathing and 1 1 2 inches into the inside framing member of the ladder framing.
2x4 ladders with one dropped gable truss are applicable for overhangs up to 2 ft.
This video will.
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.
Gable end overhangs constructed using the ladder detail.
2x6 ladders with one dropped gable truss and one dropped truss are applicable for overhangs up to 3 ft.
If the gable end ov erhang uses the ladder detail method of construction and the length of the ov erhang is greater than 8 inches to 12 inches you may be able to strengthen the connection of the ov erhang by installing from the attic inch diameter lag screws that are long enough to go through the gable truss or rafter through the wall sheathing and 1 1 2 inches into the inside framing member of the ladder framing.
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 triangular part of the gable wall is built after the rafters are installed.
Next cut two additional sets of rafters for each gable end.
