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. 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 ladder. Tie down fixings tie down fixings are used to resist uplift and shear forces lateral loads in floor framing wall framing and roof framing. 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.

Outrigger cantilever distance nzs 3604 2011 table 10 9 note. 17 of 31 measured drawing. H3 2 treated framing required for outriggers rafters and flying rafters if exposed to the weather. It can be thought of as a rafter outside the attic and another one along the edge of the roof sheathing ov erhang.

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