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Floor/ ceiling systems on engineered timber joists.
Floor/ ceiling systems on engineered timber joists, widely used in the construction of both residential and commercial sector buildings. They can be used to cover a wide range of design objectives, including aesthetic, acoustics, environmental, safety and performance requirements.
|Uniclass 2015||Gypsum board suspended ceiling systems (Ss_30_25_10_35)|
REJ 028: Direct-to-Timber
System weight: 30 kg/m²; Thickness: 277–294 mm; Fire performance: 30 minutes; Acoustic performance: 41 dB sound reduction; Impact sound insulation: 80 dB.
Insert requirement(s) from manufacturer's literature.
GTEC Drywall Sealer
Ivory, pre-decoration coat for plasterboard.
GTEC Universal Sealer
For use on plasterboard prior to painting for improved whiteness and covering power.
GTEC Resilient Bar
450 mm centres (maximum).
|Standard product features|
GTEC Intumescent Acoustic Sealant:
Perimeter sealing to restrict smoke, sound and fire penetration. Ensures system performance.
GTEC High Thread Screws.
Ceiling outer layer:
One 15 mm-thick GTEC Fire Board.
240 mm-high (minimum) engineered timber I-joists at 600 mm centres (supplied by others).
22 mm-thick tongued-and-grooved chipboard (supplied by others).
Fire performance (to BS 476-21 and BS EN 1365-2):