Attic Framing Types

These classes of long span steel framing options along with their applications and various configurations are provided in table 1.

Attic framing types.

Long span steel framing options can be categorized into different types for instance girders trusses rigid frames arches and cantilever suspension spans. Figure 6 1 page 6 2 illustrates these types of framing and specifies the nomenclature and location of the various members. Common rafter valley rafter valley jack rafter hip rafter hip jack rafter cripple jack rafter dormer rafter. Post a question or comment about roof framing support construction specifications practices.

Western balloon and braced. Most homes are insulated in the attic and any floors located above unfinished basements or crawl spaces. A hip roof has slopes on all four sides. This is made up of ceiling joists typically 2x6 or larger boards.

Also known as pitched or peaked roof gable roofs are some of the most popular roofs in the us. The floor structure of an attic is also the framing for the ceiling beneath it. Roofs are basically five types. Overhangs hips and dormers add greatly to the complexity of the framing.

Roof framing can be simple or complex depending on the roof. Gambrel and mansard roofs offer more head height for attic rooms. Stick truss roof framing. The type of modifications selected for reinforcing the joists will depend on the recommendations of the engineer but the following methods are commonly used to beef up undersized attic joists.

Roof framing is one of those carpenter skills that appears quite complicated and indeed some roof designs are difficult. Shed roofs are usually the easiest type to connect to an existing roof when adding on. A full or partial gable can be found at the end of the ridge in the roof allowing for a greater amount of internal roof space. Shed gable hip gambrel and mansard.

A mansard roof also known as a french. The sides are all equal length and come together at the top to. The most effective places to add insulation to older homes are exterior walls attics basements and crawl spaces. Collar ties rafter ties structural ridge beams.

Another common design in the northeast is the saltbox which is a gable roof with one longer side. R values vary based on the type thickness and density of the material being used. This style also improves the look of the roof providing a more unique and interesting design than the very common simple hip roof. Light framing there are three principal types of framing for light structures.

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