Learn How To Build An Extended Gable Roof Cantilever
The video starts with mentioning the purpose and then dives into details. The purpose of the video is to illustrate two different methods for building an extended gable and overhang. The example used in the video is a two-car garage that is 20 foot by 20 foot. Then acknowledges that beams, footings, and connectors required would depend on the specific project, and focuses on the general idea of how to build such a structure.
The first method involves extending the ridge out and notching it for the fascia board. The fascia board would sit on top of the beam. Here are some key points to remember about this method:
The rafters can be spaced between 16 and 24 inches on center.
One-third rule should be used to determine the length of the overhang. For instance, if the overhang is six feet, then you would need to go back twelve feet.
The second method involves making the ridge a little smaller so that it doesn't stick past the beam. The fascia board would then be sitting on top of the beam.
Here are some important points to consider for this method:
A strap should be used to connect the top plates to the beam.
The top of the wall will be even with the top of the beam.
A four by six or multiple studs nailed together should be used as posts since there will be a lot of pressure in this area.
A large concrete pad might be required for the footing.
In both methods, the beam should be built into the wall sheathing. Here are some additional tips mentioned in the video:
You can bring the fascia board back an inch and a half and nail it into the edge of the beam instead of notching it.
If the rafter is in front of the beam, it will prevent water from seeping in and rotting the beam out.
Ceiling joists can be installed if you are looking for a flat ceiling.
A rafter tie should be installed at the front if you aren't going to install any ceiling joist.
The beam size could affect the headroom. For instance, if you have an 8-foot ceiling and a 12-inch wide beam, you would only have 7 feet of headroom.
