Outrigger Roof Framing

Post frame estimating roof types 8 post frame building details 9 post frameflashings trim 10 13 post frame trim details.

Outrigger roof framing.

Figure 1 verge outrigger framing. Fixings for purlins on the flat are given in table 10 10. Similar to a larsen truss or a modified larsen truss the depth of the i joist is ideal for providing needed depth and support for high insulation values. 13 30 box gable 13 endlap rain carrying table 14 eaves 15 16 ridges 16 18 gables 18 19 flying gable 20 endwall 21 sidewall valley 22.

Parts of a roof the main structural parts of a roof are ceiling joists ridge board jack rafter hip rafter common rafters creeper rafters raking plates out riggers and noggings or last rafter overhang. These are also suitable for the cantilever distances given in 10 2 1 15 2 a. 17 of 31 measured drawing. Tie down fixings tie down fixings are used to resist uplift and shear forces lateral loads in floor framing wall framing and roof framing.

When reading nzs 3604 2011 there are some clarifications and corrections for clause 10 2 1 15 2 purlins and 10 2 1 15 3 outriggers. Outrigger cantilever distance nzs 3604 2011 table 10 9 note. The outrigger system is shown in the figure below with a conv entionally framed gable end wall. If you re building to traditional construction methods with 6 nail spacing at panel edges and 12 nail spacing at interior supports the close nail spacing ends up at the nonstructural outer member while the nailing at the actual roof.

In our quest for robust simple and cost effective approaches to high performance building the i joist outrigger assembly provides powerful solutions. Outrigger framing plan and details r. In addition to the framing design the connection of the roof decking at this location is critical. In this system the outer framing under the ov erhanging roof deck sheathing is formed by two parallel long 2x4 s or 2x6 s that are connected together laterally by short blocks like the rungs of a.

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