Roof And Wall Framing Detail

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.

Roof and wall framing detail.

The details are adapted from some of apa s most frequently requested publications and can be searched for by title or browsed for within several defined product and construction system categories such as panel wall construction and structural insulated panels in addition to advanced framing. Building framing begins with the roof framing structure. And the line length measurement from the roof peak to the building wall is the hypotenuse. The focus of this project was on connections used with conventional light frame wood roof construction.

In a rafter roof all of these components are required to provide a stable roof. Related publications advanced framing construction guide apa system report sr 103. The rafters carry the applied loads to the exterior walls. The function of each component is.

Some of these can support the roof and prevent ridge sagging and wall spreading. Pan and cover tile roof ridge detail with underlayment felt and ridge closure. The rise or height of the roof at its peak is the altitude of the triangle. End wall framing 36 interior walls 38 lath nailers 39 chapter 7 ceiling and roof framing 40 ceiling joists 40 flush ceiling framing 42 post and beam framing 42 roof slopes 44 flat roofs 45 pitched roofs 45 valleys 48 dormers 48 overhangs 48 ridge beam roof details 49 lightweight wood roof trusses 49.

Collar ties rafter ties tension beams structural ridge beams. For alternate 24 inch spacing of floor wall and roof fram ing where floor and roof trusses are used and accommodates 24 inch spacing of studs where wind loads. The run or half the building span is the base of the triangle. However before concentrating on roof framing a brief discussion of diaphragms and shear walls is presented because they are two of the key elements in the framing of load bearing wall systems in most residential and light commercial construction.

Post frame estimating roof types 8 post frame building details 9 post frameflashings trim 10 13 post frame trim details. Panel wall construction special systems structural insulated panels wall bracing. The framing of a basic gable roof is based on a right angle triangle and the various roof framing components fit the triangle. Over 179 000 cad details were downloaded from.

Rafters act more like the top chord of a roof truss than as a roof joist. Needed to tie the roof together where the rafters are framed at an angle to each other.