Skip to main content

Acousdpc Vertical Cavity Stops

The Acousdpc Vertical Cavity Stop has been developed to offer vertical protection and complement the horizontal Acoustray Perimeter Cavity Stop system in minimising flanking noise transmission along the cavity of an external cavity wall at the intersection of a party wall.

The Acousdpc operates fully as an effective fire barrier cavity stop and in conjunction with the polythene DPC has no risk of water penetration.

With excellent sound insulation properties it also achieves a 4 hours (240 minute) fire protection integrity and insulation to BS 476.

The Acousdpc operates fully as an effective fire barrier cavity stop and in conjunction with the polythene DPC has no risk of water penetration.

Supplied 1.2 metre lengths to suit cavity widths of 50, 65, 75, 85 and 100mm.

View product range & add to quote

Features & Benefits

  • Complies with Building Regulations Part E & B
  • Fully compatible with horizontal Acoustray Perimeter Cavity Stop
  • Excellent sound insulation properties
  • As a fire stop achieves 4 hours (240 minutes) fire integrity to BS 476
  • Cavity options available
  • Self-supported by compression fit
  • Easily installed

Applications

  • New build projects – not suitable for installation into existing walls
  • For installation along the cavity of an external cavity wall intersection of a party wall

Technical Information

Designed and developed to meet the requirements of:

  • where a party wall meets the cavity wall, Building Regulations stipulate the use of a mineral wool closer for sound installation purposes
  • any such closer is protected by a suitable DPC (NHBC).

Installation Advice

Please contact the Timloc Technical Team for further advice regarding the installation process for any of our products.

Installation must follow good practice for the detailing of damp proof courses, as set out in the relevant clauses of BS 5628 Part 3, BS 8215 and BS 8000 Part 3.

  • Acousdpc should be built in as brickwork/block work proceeds
  • The DPC projects beyond the insulation by 50mm on each side and should be installed to compress against the inside face of the outer leaf
  • Supplied in 1.2 metre lengths of insulation with an additional 100mm overlap of DPC, to suit the required cavity width required
  • Units easily cut on site for detailing
  • Where more than one length is required, joining lengths is by simply butt joining together
  • The upper piece must be installed with the 100mm DPC extension at the bottom, lapping to the outside of the lower piece ensuring a tight butt joint of the insulation
  • Vertical protection is given without breaks at floor level, but when installed in conjunction with the horizontal Acoustray, the horizontal tray will stop and restart around the vertical
  • To allow both systems to intersect simply notch a cut into the 50mm DPC overhang and slot over the horizontal Acoustray
  • Due to the flexible nature of the rockfibre insulation some local delaminating may occur during site handling or installation - this does not detract from performance of the product

Quality, Regulations and Standards

  • Satisfies all NHBC requirements
  • Complies with Building Regulations Part E ‘Resistance to the passage of sound’
  • Complies with Building Regulations Part B ‘Internal fire spread (structure)’
  • Complies with Robust Details

Material and Colour Choice

  • Manufactured with BS6515 Polythene DPC
  • Supplied in 1.2 metre lengths
  • Cavity options available
  • Rockfibre insulation slab
  • 260mm width insulation

How to Order

  • To calculate quantities divide the overall length of the required cavity wall run by 1.2 metres – always round up to the next whole number
  • Allow an addition unit for each corner for cutting
  • Determine and stipulate the cavity width that the Acoustop needs to suit
  • nbs plus
  • riba

Web Design by Bluestorm