Technical Data Sheet 3 Glulam in fire

Publication Year

2001

Document Status

Withdrawn

Abstract

The charring rate of timber exposed to fire is predictable. BS 5268-4 sets out the criteria by which the strength of the residual section may be assessed following specified periods of endurance. This enables designers to ensure that the required fire resistance can be achieved. In practice Glulam beams 90mm thick and over will usually endure a 30 minute fire without modification. Longer periods will probably lead to an increase in thickness although this may be partially offset by a reduction in depth.

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