Related publications advanced framing construction guide apa system report sr 103.
Roof and wall framing detail.
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.
Panel wall construction special systems structural insulated panels wall bracing.
The rise or height of the roof at its peak is the altitude of the triangle.
The framing of a basic gable roof is based on a right angle triangle and the various roof framing components fit the triangle.
Type floors foundation roofs walls.
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.
The run or half the building span is the base of the triangle.
A literature review was conducted and supplemented with new research on the performance of conventional roof systems and components including ceiling joist to rafter connections and roof framing to wall connections.
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.
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.
Rafters act more like the top chord of a roof truss than as a roof joist.
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.
And the line length measurement from the roof peak to the building wall is the hypotenuse.
The function of each component is.
Post frame estimating roof types 8 post frame building details 9 post frameflashings trim 10 13 post frame trim details.
In a rafter roof all of these components are required to provide a stable roof.
The focus of this project was on connections used with conventional light frame wood roof construction.
Needed to tie the roof together where the rafters are framed at an angle to each other.
Collar ties rafter ties tension beams structural ridge beams.
Over 179 000 cad details were downloaded from.
Building framing begins with the roof framing structure.