Home > Companies > Timloc Building Products > Acoustray Perimeter acoustic and fire rated cavity stop

Acoustray is an acoustic, fire rated perimeter cavity stop, with integral drainage tray, for use in reducing flanking noise transmission between floor levels and external wall junctions.

Asctape, polyband strip is used to join cavity stop units.


  • Saves installation problems due to its ability to be installed independently to the internal wall.
  • No secondary fixing required.
  • No break in insulation, no cold bridging.
  • Includes a unique fixing flange with drain holes which eliminates the need for external weeps.
  • Acts as formwork for floated screeds on beam floor construction.
  • Ideal for refurbishment work as only the outer leaf requires to be removed to install, without the need to fix to inner leaf.
  • Complies with Robust Details edition 2 (Jan 2005).

Standard product features

Fire rating to BS 476-20:

Integrity and insulation 90 minutes.


Main body manufactured in black polypropylene.


500 mm.

Height of insulation component:

220 mm.

NBS Specification

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This product is associated with the following NBS Create clause:
45-25-20/455 Plastics cavity closers

NBS Specification

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This product is associated with the following NBS clauses:

Product specification

An important note about specifying



Timloc Building Products


+44 (0)1405 765567

Product reference

Acoustray - acoustic cavity stop

Product code

For 50 mm cavity.
For 65 mm cavity - manufactured to special order.
For 75 mm cavity.
For 85 mm cavity - manufactured to special order.
For 100 mm cavity.

Accessory product code

Asctape jointing strip

Manufacturer details

Timloc House,
Ozone Park,
East Yorkshire, DN14 6UQ
Tel +44 (0)1405 765567
Fax +44 (0)1405 720479
NBS Plus
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