Determine the beam size.
Roof off back of house.
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8 inches in this case.
If you decide on a shallow pitch porch roof use 2 by 6 foot rafters.
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Use screws to secure the rafter to the sill plate.
The positioning of your rafters will depend on the pitch of the porch roof.
Choose a roof pitch 3 12 and roof structure 2x6 this places the new roof on top of the existing roof.
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39705086 caucasian man using rake to shovel heavy snow off roof.
Because the gutter is removed you will need to install transfer flashing from the roof of the house to the patio.
This type of roof provides more options for extending the loft and installing windows allowing a greater amount of natural light into the room.
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Work from the view back not from the house out.
Joist hangers can help you mount each rafter to the house.
Calculate the sightline clearance height about 6 feet 2 inches in this case.
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It is almost similar to the first method but to make the patio roof a little bit higher you will need to remove the house gutter and place the back channel a bit higher.
A half hipped roof is almost identical to a simple hip roof design but instead the two sides of the roof are shortened creating eaves at the either side of the house.