After that you should fix the cornice board to the end sides of the ridge and the load bearing beams.
How to build a gable roof addition.
Nail 2 boards onto your walls as top plates.
Nail the first boards on top of your wall where you plan to build your roof.
Use 8 penny nails to attach the first 2 in 4 in 5 1 cm 10 2 cm board to the wall studs.
Building up or finishing the attic is what it s often called.
Butt the first new truss against the old one.
Adding one or more dormer windows to a gable roof is an age old way of adding living space to cramped quarters.
When matched to the angle and proportions of other rooflines on the house your gable roof will add visual interest and character to the home making the addition look like an asset that belongs with the house.
Determine the locations for your roof support posts.
Tying in to an existing gable roof.
Then load bearing roof beams fixed to the trusses are extended in the same way.
For the arrangement of the gable end overhang for the standard roof you lengthen the ridge beam beyond the facade for previously verified length using cut rafters.
Tie into the end of an existing gable roof by removing existing facing boards wall siding and any other obstructions back to the first truss of the old roof.
When you nail in the second boards offset the seams of the upper and lower layers by at least 24 in 61 cm.