The other common wind related failure at gable ends is uplift of the roof decking at the overhang.
Overhang bracing rake roofing.
When i did roofing we always had the 1 2 inch over hang on the rake regardless of brand guess i should have read more instructions back then.
Measure the eave overhang from the exterior wall and add 5 inches to the measurement to provide a reveal or extension on the end of the horizontal beam that supports the eave if desired but you can cut it longer or shorter.
Uplift of roof decking at the overhang.
Size and type of roof rake boards.
Remove the gutters and roof flashing if needed.
This can be from two causes.
A cantilever roof overhang is one way to really give a really distinctive look to your home.
As an example if your overhang is 12 inches you ll add 2 feet to the overall length and 2 feet to the overall width of the house.
Owens corning recommend when drip edge is used to have the shingles flush with the drip edge on the rake.
A cantilever is a rigid structural element anchored only at one end to a vertical support from which it is protruding.
Use pressure treated 4 by 4 beams to build a basic craftsman bracket.
Gaf recommends up to 1 2 inch overhang.
If you have existing brackets use one for reference.
Eaves and rakes that overhang a building s sidewalls are critical to the life of a building.
Shedding rainwater away from siding and trim especially from door and window sills can greatly reduce rot mildew and a host of other problems that can be caused by water streaming down the face of the building.
Rake boards are installed on the gable ends of brick houses to cover the exposed top edge of the brick.
The rake board covers the top edge of the siding where it meets the roof or soffit if there is an overhang on the gable end and prevents rain from running behind it.
Inadequate nailing of the sheathing to supporting framing or inadequate connections of the framing at the rake edge that supports the roof.
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Unscrew the gutters at the brackets then pull out the nails holding them in place and lower them down safely.
Do the same for flashing where it overlaps the edges of the overhang.
In order to give yourself clear access to the eaves you may first need to detach the drainage structures covering them.
Using a cantilever means you don t need external bracing.
Here the recommended overhang length can extend up to 12 inches for moderately rainy climates or up to 18 inches for climates that experience more frequent rainfall.
Much of the united states falls into this category especially along the coasts.