Roof Framing Plan Meaning

In this type of plan the measurement details of the framing materials are included as well as important construction and positioning information.

Roof framing plan meaning.

Roof framing simply describes how a group of rafters and beams are fitted or joined together in order to provide support for the roof covering. Construction blueprints also called construction plans or drawings are full of abbreviations and acronyms to save space and neaten the overall appearance of the presentation. Projects that are more complex will include a roof framing plan in both residential and commercial projects. 1 8 pitch is given so 24 x 1 8 equals 3 or unit of rise in inches.

Mirrored pairs of rafters meet at a ridge and are connected across the base by a ceiling joist. In profile the framing of a conventional pitched roof forms a triangle. The roof framing plan is similar to the roof plan but in addition to showing the shape of the structure and the outline of the roof it also shows the size and direction of the framing members use to frame the roof. A roof framing plan is required in new development projects in order to determine how the roof will be.

Ridge beam sits below the rafters. Some of these can support the roof and prevent ridge sagging and wall spreading. Mcgraw hill dictionary of scientific technical terms 6e copyright 2003 by the mcgraw hill companies inc. This article describes and illustrates the different types of support that prevents roof sagging and wall bulging at buildings including definitions of collar ties rafter ties and structural ridge beams.

Parts of a roof. The inherent strength and integrity of the triangular form makes the roof a sound structure. Ridge board v s beam. Architects engineers builders and real estate developers all require a roof framing plan to understand how to construct any roof.

If the unit of rise in inches is 3 then the cut is the unit of rise and the unit of run 12 inches or 3 12. A roof framing plan focuses on the structures and supports used to construct the roof and is different from the standard roof plan. Supported by lally columns. Transfers the loadof the roof through the raftersto walls below.

Ridge board ridge beam. The framing style of the roof refers to the actual components of each roofing truss and the design of the structural foundation of that roof. Partially these will depend on the style of roof you ve selected but you ll also have some wiggle room depending on the design elements of the house. A ridge board is a horizontal member of the roof frame.

Remembering all of this shorthand can be tricky especially when this is added to the challenge of reading all the symbols and deciphering the conventions that might be. Figure 2 2 roof framing terms. Frām iŋ plan naval architecture a diagram showing positions and type of construction of the framing members of a ship. One of the most important parts of building a sturdy roof is the initial roof framing plan.

In order to do roof framing properly it is important to understand the unique shape and dimensions of your roof since these will greatly impact the geometry of the roof frame.