This type of roof is often seen in buildings with a more complex layout for example homes with an attached garage.
Perpendicular gable roof addition.
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First you ll need to determine where your new gable roof will tie into the existing roof.
Again choosing the easy way out we opted to build blind valleys aka california valleys where one intersecting roof is built on top of the other.
Cut two rafters with a circular saw to the pitch of the addition roof and nail them across the rafters on the old roof.
Adding a gable roof addition to your house will require one type of framing.
Roof framing joins bearing walls or beams.
They form an upside down v with the point at the top of the addition roof.
These areas include the high pressure eave and corner zones porch and roof overhangs gable ends and where.
Roof failures are often observed on areas of the building where wind pressures are concentrated.
The gable roof on the porch addition was framed with a dropped structural ridge supporting the common rafters above.
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Imposed on the roof to the supporting walls below.
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A cross gable roof is a design that consists of two or more gable roof ridges that intersect at an angle most commonly perpendicular to one another.
Joining perpendicular gable roof.
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Take careful measurements to determine how many trusses you will need.
Here we will focus on adding length to the end of a house roof.