Framing A Shed Roof Dormer

Create a layout that incorporates the details of the project such as slope headroom and exterior appearance.

Framing a shed roof dormer.

Shed dormers are an efficient way to gain more space. You ll also need good equipment for working up high an extension ladder roofing brackets and scaffolding see roof safety. The construction of the dormer involved three st. Cut the shed dormers opening with a reciprocating saw.

Framing a shed dormer is a simpler process than building a gable dormer. However the width can be increased with properly sized and engineered support framing. On the roof using the pilot holes drilled in step 1 snap the lines that will denote the opening in the roof for the dormer. The shed roof rafters are fastened to the other side of the header.

Building a 20 ft wide shed dormer doesn t take much more effort than building a 4 ft wide version. Wide depending on the size and length of the existing rafters. Schedule your project considering that the roof will be wide open and the work may last an entire day. The end wall of a shed dormer carries the load rather than the sidewalls.

Framing a dormer with shed roof is a difficult process but if you take your steps correctly you will be able to handle the job effectively. If you feel that your house has little natural light you could think about creating a dormer with shed roof which will certainly help. Be extremely careful not to damage the existing structure. Because they can be much wider than gable dormers shed dormers can provide more headroom and therefore more usable space.

They also give you more bang for the buck. To correct a slight dip in the floor we established a benchmark height with a laser level and nailed 2x6 squash blocks to the sides of the existing floor joists. Framing the dormer with the dormer roof raised and supported we cut away the part of the original roof that was still in place leaving the exposed ends of the floor joists. This framing option is usually best for dormers up to 6 ft.

Building a dormer requires a tool belt loaded with all the basic carpentry tools plus a few extras a circular saw reciprocating saw framing square and 2 and 4 ft. Usually a dormer is made for extra light into a house.