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- Step 1: Is Framing A Gable Dormer For Me?
- Step 2: Work Out Dormer Details on Paper
- Step 3: Lay Out The Dormer on The Attic Floor Before Opening The Roof
- Step 4: Plumb and Square The Front Wall
- Step 5: Cut and Install The Rafters
- Step 6: Finish The Roof and Exterior
- Step 7: Finish The Interior
- Required Tools For This Roof Dormer Project
Building a roof dormer is an ambitious and challenging project. You should have a few remodeling projects under your belt before tackling a task this big and complex. If you’re a little unsure of your rough-framing or roofing skills, hire a carpenter to help with this phase of the roof dormer project. The gable dormers we built are 6 ft. wide, abou...
Like any other major remodeling project, your dormer project will progress more smoothly if you work out the details on paper or a full-size layout on your garage floor (Figure B), before beginning construction. Dormers are complex and not every house is suitable. To make sure the dormers work, we recommend hiring an architect who specializes in re...
Before you can cut the hole for the roof dormer, you must know exactly where the side walls will be built. Mark the dormer wall layout on the attic floor and make sure the dormer walls are square with the exterior wall of the house. Use a plumb bob to transfer the inside edge of the walls to the underside of the roof. Drive nails up through the roo...
After seemingly endless planning and preparation, you’ll finally see real progress when the walls go up. Install a 2×6 header across the opening to support the cut-off rafters, then fit the front wall between the new rafters (Photo 4). Take a little extra care to make sure the top of the wall is level and brace it perfectly vertical (plumb) and squ...
You don’t have to understand all the technicalities of rafter cutting to build the dormer roof. Make the full-scale drawing to the dimensions and roof slope in your plan (Figure B) and use it to measure the exact height of the ridge (temporary post) and the lengths and angles on the common rafters. If the slope of your dormer roof is the same as th...
Fill in the gable end studs after the rafters are complete (Photo 11). Then install the roof sheathing. It’s a great feeling to have the structure closed in and ready to finish, but now’s not the time to rush the job. Careful attention to leakproof flashings and roofing details (Figure A and Photos 12 – 14) at this point in the job will save you un...
Once the dormer is weathertight and you can sleep without worrying about the pitter-patter of rain, move inside. Add rafter ties to strengthen the roof and to provide space for insulation and ventilation (Photo 15). When the framing has been OK’d by the building inspector, you can proceed with the electrical rough-in, insulation, drywall and woodwo...
Have the necessary tools for this DIY dormer roof project lined up before you start—you’ll save time and frustration. 1. 2-ft. and 4-ft. levels 2. Circular saw 3. Drill/driver - cordless 4. Extension ladder 5. Framing square 6. Hammer 7. Reciprocating saw 8. Safety glasses 9. Stapler 10. Tape measure 11. Tool belt
Frame a Classic Shed Dormer. If you start with a full-scale layout on the subfloor and plan for the finished details, the framing is relatively painless. By John Spier Issue 200.
With its long, simple roof, a shed dormer adds the most floor space and more opportunities for windows than other dormer types. On the exterior, a successful shed dormer doesn’t overwhelm the main roof. Rather, it obeys the hierarchy of a primary main roof and a secondary dormer.
Timber-Frame Design. Appropriately scaled gable dormers bring in light while adding charm and interest to a large or plain roof. If designed well, they don’t compete with the lines of the main house; instead, they reinforce, complement, and enrich the house’s personality. Learn how to design gable dormers.
- Michael Maines
Nov 4, 2023 · Make a full-scale drawing of the dormer roof based on dimensions and roof slope in your plan. Measure the exact height of the ridge and lengths and angles of common rafters using the full-scale drawing. Use the roof jig technique to measure and transfer the slope of the old roof to the new rafters.
People also ask
What are the different types of dormer framing?
What does a shed dormer look like?
Should I build a dormer?
What are the different types of dormer additions?
Aug 16, 2023 · You'll encounter many types of dormer additions with a range of sizes, roof styles, and even with perks such as a dormer balcony. However, in order to understand the basics of dormer framing, get a sense of the process by looking at two styles: a gabled dormer and a shed dormer.