Outrigger Roof Framing

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.

Outrigger roof framing.

Verge overhangs are the areas of a timber framed roof that are most vulnerable to wind damage so it s important to get them right. Tie down fixings tie down fixings are used to resist uplift and shear forces lateral loads in floor framing wall framing and roof framing. These are also suitable for the cantilever distances given in 10 2 1 15 2 a. Outrigger cantilever distance nzs 3604 2011 table 10 9 note.

In our quest for robust simple and cost effective approaches to high performance building the i joist outrigger assembly provides powerful solutions. 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. 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. Fixings for purlins on the flat are given in table 10 10.

Post frame estimating roof types 8 post frame building details 9 post frameflashings trim 10 13 post frame trim details. 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. There have been many reported cases during. H3 2 treated framing required for outriggers rafters and flying rafters if exposed to the weather.

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 addition to the framing design the connection of the roof decking at this location is critical. Tucker house raleigh north carolina. Outrigger framing plan and details r.

Figure 1 verge outrigger framing.