Sustainable Construction - Building & Construction Authority

A Guide Fire on Protection Fire Protection and Performance-based and Performance-based Fire Engineering Fire Engineering
Cementitious spray-fi reproofi ng
How can the surface appearance of the
spray-fireproofing be improved?
1. Hand troweling may be applied to some sprayapplied
fireproofing products to improve the
surface appearance of the products.
2. Surface decorative paint may be used as an
overspray on spray-applied fireproofing products
for sealing, surface colouring or to increase light
reflection.
Other important considerations:
a) Primed/Painted Steel Substrates
Spray-fireproofing obtains its maximum bond when
applied to unprimed/unpainted structural steel.
Priming of interior structural steel is generally
unnecessary. The use of non-compatible primer
may result in bond failure. Designers should consult
the product manufacturer for guidance.
b) Experienced fireproofing applicators
To ensure the fireproofing is properly carried out, it is recommended that the manufacturer
confirm the applicator has been properly trained and has the experience to meet the
qualification of an approved applicator for the spray-fireproofing product.
c) Track records
The applicator and manufacturer are to provide a list of local project references for review by
the designers.
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Unpainted steel member