Framing A Gable Roof Dormer

Most simply build a header between two doubled common rafters from the main roof and use this to support the dormer s ridge beam.

Framing a gable roof dormer. Create a layout that incorporates the details of the project such as slope headroom and exterior appearance. I also cut one end of the dormer ridge to match the common rafter pitch and leave the other end long for trimming in place. Schedule your project considering that the roof will be wide open and the work may last an entire day. Purchase your materials including wood windows and any other specialty.

Appropriately scaled gable dormers bring in light while adding charm and interest to a large or plain roof. Nsm construction 101 357 views. Framing a gable dormer roof themrfinneth. Dormer anatomy the size of the new triple rafters and common rafters.

Looking for a simple expansion that ll give you more space in your home. Builders facing the job of framing a gable dormer generally use one of two options. Is framing a gable dormer for me. A new dormer in a cramped underused attic might just be the ticket.

That said should a dormer become large enough to be considered a cross gable it will hold its own as a major design element. Work out dormer details on paper figure a. Lay out the dormer on the attic floor before. Combining dormer designs can solve some difficult design decisions even while complicating roof framing.

After the walls ridge and common rafters are set i overlay the valley framing on top of the main roof sheathing to save from cutting a true valley. This method is especially common for dormers situated toward the middle of the roof elevation which require a lower as well as an upper header. All this prep work minimizes the time the roof is exposed to the weather. How to frame a gabled dormer.

Gable dormer framing adding a gabled dormer roof creates additional space and.