Latest Discussions : Tools & Workshop

garyalvis

03:35AM | 05/20/04
Member Since: 05/17/04
8 lifetime posts
we finished our new house which we built ourselves and now we have a few bugs to work out. one that is bothering me is this. we have a perfect french door in our kitchen that goes to the rear of the house. the problem is that when it rains it gets the full force of the rain directly on it and after one year is already showing signs of mildew and water damage. the rear of the house were it is located is 2 stories tall with a 1 foot overhang at the roof. I was planning on placing an overhang above the door sticking out about 2 foot that would angle off around the side forming a 1/2 octagon from above. what is a good way to anchor the top of this overhang so i wont need any supports hanging down. nailing into the rim joist just doesent seam strong enough to me at all.

tomh

06:57AM | 05/20/04
Member Since: 07/01/03
549 lifetime posts
I have done this with overhangs up to 4-feet with no pillar support. I built a triangular frames from 2x6 lumber incorporating the roof slope I wanted. The frames were then reinforded with plywood glued and nailed to the side of the frames to make them very rigid and to hold them together. I attached the frames to the house frame, 16: O.C. using metal framing clips to make a strong attachment along the rim joist at each stud. With the frame in place I added the facia board, framed in the hip angle, and finally attached the roof deck and flashing. The overhang was finished with a roof and V-groove soffit. The hardest part is cutting the jack rafter that forms the corner angle where the roof goes around the house.

The finished overhang was able to support weight of a person walking on it as well as substantial snow-loads. The attachment to the house is critical, and I cut away the siding so the attachments to the rim-joist and studs above could be reinforced with the strong-tie clips. This also allows the flashing to be slipped under the siding above and over the new roof deck. Draw out and plan the framing, cut it all to size and assemble on the ground. It will all come together. Think about how loads are transferred back to the house. The overhang will act as a lever trying to pull away at the top and push in at the bottom, but when the unit all secured to the wall, it is mainly just vertical sheer. Using metal clips to attach to the frame creates a very strong attachment.


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