Conventional Gable Roof Framing Ideas – L-Shaped Floor Plan Design
This discusses conventional gable roof framing for an L-shaped floor plan design. A 3D model will be utilized to illustrate the various framing components.
Gable Roof Trusses vs. Gable Stud Framing
The discussion begins by comparing gable roof trusses and gable stud framing. Gable roof trusses are pre-built units delivered and installed on-site, whereas gable stud framing is constructed on-site using individual studs. For this L-shaped design, gable stud framing is the chosen method.
Garage Roof Rafters
Next, we delve into the garage roof rafters. The model showcases 2x10 rafters spaced 2 feet on center, with rafter ties at 48 inches on center. Previous discussions have covered rafter ties and ceiling joists. Importantly, the space between the top of the walls and the roof's underside needs to be filled, potentially with a plate on top of the roof.
Ventilation and Firewall Considerations
It's highlighted that ventilation holes in the model might require enlargement. This stems from the need for the wall separating the garage and the house to function as a firewall, extending up to the roof.
Rooftop View and Framing Components
Shifting focus to the roof's top view, rafters are 16 inches on center, using 2x10s. The blocks are shaped to accommodate perimeter nailing for the outlooker supporting the fascia board. Notching the 2x12 ridge is necessary to fit the 2x8s on the exterior, and rafters need shaping to fit beneath the 2x8s.
Gable Studs, Collar Ties, and Sway Braces
Gable studs, spaced 16 inches on center, are also discussed. A formula for cutting gable studs will be provided.
Collar ties, serving as braces at 48 inches on center, are introduced. The sway brace's role in maintaining ridge alignment and preventing gable wall leaning is emphasized, with its placement on a load-bearing wall being crucial.
Conclusion and Future Plans
This information provides a solid overview of conventional gable roof framing for an L-shaped layout, utilizing a 3D model for visual clarity and offering step-by-step explanations.
