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Timber cannot be used as a sloping roof.

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+1 vote
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in Civil Engineering Drawing by (128k points)
Timber cannot be used as a sloping roof.

(a) True

(b) False

The question was posed to me in an internship interview.

The doubt is from Roof Covering, Sloping Roof & Flat Terraced Roof in section Rules and Methods of Measurement of Civil Engineering Drawing

1 Answer

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Right option is (b) False

Explanation: A timber roof truss is a structural framework of timbers designed to bridge the space above a room and to provide support for a roof. Trusses usually occur at regular intervals, linked by longitudinal timbers such as purlins. The space between each truss is known as a bay.

Timber roof trusses were a medieval development. Earlier roofs had been supported by coupled rafters – pairs of rafters linked by horizontal beams. But such roofs were structurally weak, and lacking any longitudinal support were prone to racking, a collapse resulting from horizontal movement.

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