How To Build A Gable Roof Addition

Determine the locations for your roof support posts.

How to build a gable roof addition. 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. When you nail in the second boards offset the seams of the upper and lower layers by at least 24 in 61 cm. Adding one or more dormer windows to a gable roof is an age old way of adding living space to cramped quarters. Building up or finishing the attic is what it s often called.

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. After that you should fix the cornice board to the end sides of the ridge and the load bearing beams. Nail the first boards on top of your wall where you plan to build your roof. Nail 2 boards onto your walls as top plates.

Then mount new trusses on the new addition walls. Mark these locations on the deck and cutout areas in the deck at these spots to be able to dig a hole in the ground below the deck set a concrete footing and attach the posts. 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. Butt the first new truss against the old one.

Tying in to an existing gable roof.