Your roof may vary from this and the details of how the porch ties in will vary as well.
Porch roof framing connection.
These illustrations above show the plans for the screened in porch deck framing gable framing ledger truss block side walls and the end wall.
We show you the steps involved and calculations required for buildng a roof for your porch or constructing one over your deck or patio.
The information contained here is a.
12ft 2 sq x 1 d 4x8 10ft 2x8 24 o c.
How to frame a roof against a brick wall.
Joist hangers can help you mount each rafter to the house.
If you decide on a shallow pitch porch roof use 2 by 6 foot rafters.
To keep the porch roof framing as simple as possible we installed a structural ridge supported by posts at each end with the common rafters landing on top of the ridge.
Support posts should be spaced less than 8 apart and be located on top of properly sized frost footings.
We show you how both a typical rafter style porch and truss roof area constructed.
The positioning of your rafters will depend on the pitch of the porch roof.
And the line length measurement from the roof peak to the building wall is the hypotenuse.
2 deck framing connection guide f deckcode09 2009 simpson strong tie company inc.
The roof framing itself in this.
The framing of a basic gable roof is based on a right angle triangle and the various roof framing components fit the triangle.
The run or half the building span is the base of the triangle.
The opposite side of the porch roof will be supported by a header beam that is installed parallel to the house on top of 6x6 support posts.
The ridge board is non load bearing and merely provides the point of connection for the opposing rafters and is only a nominal 1 thick.
All wood to be 2 douglas fir or better.
You will need to remove the shingles and sheathing to expose the roof framing.
The house roof sloped 5 in.
Similarly hip and valley rafters provide the point of connection for roof rafters framed at angles.
After installing the rafters we still had to extend the porch roof back over the shed roof creating a valley on either side.
The rise or height of the roof at its peak is the altitude of the triangle.
All construction shall comply with international residential code 2.
You will need to.
Contents this guide recommends connectors and fasteners for deck construction that may meet the requirements of the 2006 international building code and the 2006 international residential code.
Rafters act more like the top chord of a roof truss than as a roof joist.
Use screws to secure the rafter to the sill plate.
When the roof of an addition garage porch or patio meets a brick wall the intersection creates a number of concerns.
Blind valleys simplify framing.
The porch roof may match the pitch of your home or have a more shallow roof pitch.