This is a popular alteration to the standard gable roof providing more headroom and space for an extension without having to completely alter the existing roof.
Frame roof addition.
The rise or height of the roof at its peak is the altitude of the triangle.
The a frame is very easy to identify.
Adding a wood lattice roof can range between 500 and 10 000.
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And the line length measurement from the roof peak to the building wall is the hypotenuse.
Framing a roof is the last step in framing new construction.
It s easy for the contractor to build and easy on the homeowner s budget says schultz but it makes the new space look like an obvious add on.
This is the simplest solution a single slope that s attached to the original house at the high point and slants down to the outer wall of the addition.
A screen can be added for an additional cost of 3 000 to 4 000.
The framing of a basic gable roof is based on a right angle triangle and the various roof framing components fit the triangle.
At the low end of the valley the subfascias of the two roofs are mitered with a block filling in the roof framing.
Some gable roof designs have a shed roof addition on the side.
The average cost for a patio roof addition using low maintenance wood patterned aluminum runs for about 6 000 to 10 000 for an area of 20 by 20 feet as of 2011.
The average wooden stud wall frame construction for an addition runs between 9 and 18 a square foot or 1 800 and 3 600 for a 200 square foot addition with most homeowners spending around 2 500 on basic rough construction framing.
The gable roof on the porch addition was framed with a dropped structural ridge supporting the common rafters above.
Gable roof with shed addition.