coupled-roof
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coupled roof
Standards
pitched roof construction with a roof slope not less than 10°, with ceiling joists and collar ties fixed to opposing common rafter pairs and a ridgeboard at the apex of the roof (see figure 7.1). a coupled roof system may include some area where it is not possible to fix ceiling joists or collar ties to all rafters, e.g., hip ends or parts of t- or l-shaped house
Source - AS 1684.4-2010: Residential timber-framed construction
HB50
pitched roof consisting of pairs of rafters fixed at one end to the wall plate and at the other to the ridge, without collar ties or tie beams
Spans are limited as forces acting on the roof tend to spread the walls.
HB50
pitched roof construction with a roof slope not less than 10°, with ceiling joists and collar ties fixed to opposing common rafter pairs and a ridgeboard at the apex of the roof
A coupled roof system may include some area where it is not possible to fix ceiling joists or collar ties to all rafters; for example, hip ends or parts of a T- or L-shaped house.