Importance of ‘Lay’ in structural design

Lay: It is the minimum length of the region in the member where there is no twisting or torsion. As per AS 1720.1 – 2010, Lay is defined as the distance between points of effectively rigid restraint between which bending about the minor axis would be produced by buckling under load.

Roof

Types of Roof System

A roof is a top covering of the building to provide protection against the snow, sunlight, rain, extreme temperatures, as well as winds. In other words, a roof system is a set of connected elements to provide a stable support system to the roof and coverings.

Based on architectural and client requirements, roof systems are classified based on roof exposure, roof structural system and roof slope.

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