Up from the valley center.
Perpendicular gable roof addition.
Either the addition is added to form a t shape to the house with the ridge running perpendicular to the main house roof or the addition is continued on the end of the house making it longer with the ridge running the same way as the existing house.
Joining perpendicular gable roof.
Building an addition on a house requires connecting two roofs whether the new space is a wing of living areas or a carport.
Re lay the shingles you removed from the existing roof.
Tying a roof perpendicular to the existing roof will be another matter.
Some gable roof designs have a shed roof addition on the side.
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.
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Gable roof with shed addition.
When two perpendicular.
There are many roof styles but the most common are gable which slopes.
Take careful measurements to determine how many trusses you will need.
The ridge board is a horizontal timber that serves as a nailing surface for the upper ends of the rafters but in most gable roofs does not bear any of the roof s weight.
Here we will focus on adding length to the end of a house roof.
First you ll need to determine where your new gable roof will tie into the existing roof.
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Shingle the addition roof letting the new shingles fold through the valley center and onto the old roof deck by at least 1 ft.