Gable End Roof Overhang Framing

This 1 inch gap will allow the gable end siding overhang to slide in where it will overlap the end wall siding at the top plate.

Gable end roof overhang framing.

The picture above shows the plan view of a gable roof. The american wood council s 2012 wood frame construction manual defines rake overhang as the horizontal projection of the roof measured from the outside face of the gable endwall to the outside edge of the roof section 2 1 3 4 c states rake overhangs shall not exceed the lesser of one half the purlin length or 2 feet and makes an. There are no similar requirements for wood framing. For the arrangement of the gable end overhang for the standard roof you lengthen the ridge beam beyond the facade for previously verified length using cut rafters.

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. Thick and the overhang from the side wall set between 12 in. After that you should fix the cornice board to the end sides of the ridge and the load bearing beams. Gable end overhangs constructed using the ladder detail.

Then load bearing roof beams fixed to the trusses are extended in the same way. 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. Framing a gable roof building a gable with barge end purlin struts and collar ties. This video will.

This is a very solid way to do it. Wide especially when the eave overhang is less than 12 in. Ladder trusses are made up using four noggins bridging at each corner to support a rafter outside the building. Gable end overhangs constructed using the ladder detail.

Avoid gable ends that are over 8 in. This can be from two causes. These are framing members that are installed perpendicular to the rest of the rafters and hang over the gable end. Framing for gable end overhangs rakes for steel framing is codified in the irc 2012 2015 r804.

When designing a gable end eave without a return the dimensions to look at are the width of the trim set between 6 in. To 18 in depending on the style of the building. 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. They are framed sort of like headers and take the place of what would be the last two rafters.

It s also very time consuming. Uplift of roof decking at the overhang the other common wind related failure at gable ends is uplift of the roof decking at the overhang.