ROOF FRAMING PLAN: what is it?

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Save Save Roof Framing. Related titles. Carousel Previous Carousel Next. Jump to Page. Search inside document. Understand the basic terms relating to roof frame carpentry. Develop framing plans for a gable roof, framingg roof, and variations that include: valleys. Lay out a common rafter, Using at least one of the four basic mettods. Lay out ceiting joists, -Recognize wher special Je thts hapten you mill he sntrensend to commen ceiling framing may plaj wood roof framing plan unit of roofs, the basies of rool framing, wold the skills required.

In following chapters, you will learn more about advanced raof framing, roof Terms sheathing, and roof assembly bird's mouth Roof framing begins after the house walls have been pitch framed. This and following chapters vnit run describe roof framing using conventional lumber. Using Hoists requltes the same baste understanding of rafter layout and roof design.

Installation details for Ioists are given in Section A roof must be strong to with stand snow and wind loads. The parts must be framig fastened to each other. Another consideration is appearance. A roof should add to the attractiveness ofthe home. Roof styles are used to create different architec: tural effects. A carpenter must understand and wood roof framing plan unit able to frame roo's in various styles Fig.

The basic roof styles used for homes and small buildings are gable, hip, flat, and shee. Gable Roof The gable roof has two sloping sides that meet atthe top to form a gable at each end.

Because there is no siding above the overhang, mainte nance needs are reduced, The hip is also a very B Fig. Conn net ayes The ceiling materials applied to the underside of the rafters. Because a flat roof can be dif cult to waterproof, itis found most often in dry climates, STopes in one direction only.

A second slope begins partway up and continues to the top. It is commonly used on barns, Mansard Roof The mansard roof sa variation ofthe hip roof. Ithas steep slopes on all four sides. Like a hip roof, it has an even overhang around the entire building. This protects the walls fom Wood roof framing plan unit, Like a gable roof, portions of a Wood roof framing plan unit hip to0f are formed by two slopes that meet atthe top.

A Dutch hip roof is more common on single: Story houses than on two-story houses. Its long leg framlng called the blade, of bod. Rafters serve the same purpose in the roof as joists in -he aor or stuls in the wall.

The Fidge board, or ridge, is the horizontal piece that connects the upper ends ofthe rafters, Rafters often extend beyond the exterior walls to form eaves also called overhangs that pro tect the sides of the house.

The unif isthe por- tion of the rafter that extends beyond the wall of the building o form the eave, The following rafters are needed for framing the cifferent roof styles Fig. Valley Jack rafters extend from the ridge board toa valley rafter.

Cripple jack rafters extend between wood roof framing plan unit hip rafter and a val! Gracielle Nebres. John Sanow. Kevin Pontillas. La Beam. Skip section Trending Asking wood roof framing plan unit Trouble.

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span (24 in.) x pitch= unit of rise. For example, Figure —Roof framing terms. 1/8 pitch is given, so 24 x 1/8 equals 3, or unit of rise in inches. 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/ Line length is the hyptenuse of the triangle whose. Roof Pitch •The Roof Pitch is the numerical measure of how steep or shallow a roof is. •Vertical Rise over Horizontal Run. •In the U.S it is defined by the rise in inches to a 12” run. •Example: 3 inch rise per 12” run is a pitch roof. • through are the most common - Size: 1MB. Chapter 5 - Design of Wood Framing The principal method of design for wood-framed construction has historically been allowable stress design (ASD). This chapter uses the most current version of the ASD method (AF&PA, ), although the load resistance factored design method (LRFD) is now available as an alternative (AF&PA, a).

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