How To Frame A Dormer Roof

Finish the roof and exterior.

How to frame a dormer roof.

Framing a dormer refers to the first and most important step in constructing an upper level addition to your home. Frame in the wedge shaped spaces between the new roof and the old using the same materials and techniques you used to install the new outer wall of the dormer. A gabled dormer on the other hand is not flat but gabled which refers to two sides coming together to form a peak. We ll show you the major steps to follow when building a dormer including how to cut and reframe your existing roof assemble the dormer walls and frame your new roof.

Use your best judgement of. Work out dormer details on paper. 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. Whether you re expanding a cramped attic into a bedroom office or playroom if you have any carpentry experience you can accomplish this home renovation goal yourself.

Cut and install the rafters. How do you build a dormer on an existing roof. 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. How to frame a gabled dormer.

Step 10 sheath in the new walls and the roof with 5 8 inch plywood. The methods taught in these video s are just a few of many ways to do construction. Plumb and square the front wall. Recently completed in march 2016 this project wasn t quite as straight froward as it may look in the video.

The construction of the dormer involved three st. Lay out the dormer on the attic floor before opening the roof. Shed dormers have a flat pitched roof set at a complementary angle to the existing roofline. If you have decided to build a shed dormer on your house to allow for extra light or extra headspace shed dormers are easier to build than gable dormers.