Often with new construction the roof flashing is first nailed to the wall.
How to attach a gable roof to a house wall.
The blocking is held low to hide the roof wall intersection and to provide a 1 inch air space at the top for a ventilation channel.
There sometimes is a problem with movement differences of the wall and the roof decking when the flashing is fastened to both the wall and the roof.
If you decide on a shallow pitch porch roof use 2 by 6 foot rafters.
After the roof line changes you cannot add a gable using this option.
You can also add a gable on the roof floor line worksheet on the properties palette.
This option is available only if the roof line has not been edited.
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Use this procedure to add a gable to the roof line of a wall.
Joist hangers can help you mount each rafter to the house.
Then the house wrap and exterior wall covering are installed over this roof flashing.
At the beam end the rafters are fastened with a 10 inch structural screw through the top of the rafter into the beam.
Most common ways to attach a patio roof to an existing house.
The most common roof to wall intersections involve either a gable roof with its ridge running perpendicular to the wall or a shed roof that slopes downward away from the wall.
To get the cleanest look without breaking a sweat you can simply attach the back channel and the patio directly to the wall of the house.
On a two story house you can usually tie the ledger into a band joist also called a rim joist located between the floors as shown below.
Use screws to secure the rafter to the sill plate.
How to attach a patio roof to an existing house.
Click wall tabmodify panelroof floor line drop downedit in place.
Attaching a patio roof entails intermediate carpentry skills and creativity because there are many ways that you can choose from.