Siderise CVB – Acoustic Void Barriers for Ceilings and Floors – Technical Data

Version: 1.02 - Release Date: March 2024

Application

Siderise CVB acoustic void barriers are primarily intended to reduce sound transmission via hidden voids offering potential ‘cross-talk’ paths to adjoining areas. For suspended ceilings or raised access floors, typical voids include those formed at partition lines and the cavity formed at floor slab abutments to curtain walls.

The product comprises a high-density resin-bonded rockfibre insulation core with exposed faces finished in a reinforced aluminium foil. As standard for SFO grades, it incorporates opposing interlocking rebate joints in one direction. This feature helps maintain acoustic integrity at joints within the installed barrier.

Siderise CVB is available in a number of grades and thicknesses that offer a wide range of sound reduction values. The product is also available with a choice of optional high mass central membranes to achieve substantially higher Sound Reduction Index (SRI) values. (Contact our Interiors technical team for advice.)

Some Siderise CVB barriers have certified fire resistance permitting their dual use as ceiling or floor void fire barriers. The product is extremely simple to fix and can be easily cut to accommodate service penetrations

Product Description

The rockfibre insulation core of Siderise CVB acoustic void barriers for suspended ceilings and floors is available in a range of densities and in two different structural forms:

SFO - the conventional construction

(i.e. the direction of the internal fibres predominantly aligns with that of the barrier itself).

HSL - the special ‘lamella’ construction

(i.e. the internal fibres have a perpendicular orientation and additionally are held in a pre-compressed state).

The advantage of the HSL construction is that it offers improved acoustic performance at lower surface weights. Additionally, the HSL version is more compressible in the plane of the barrier, assisting friction fitting and aiding deformation around service penetrations.

The SFO form is also optionally available with the inclusion of a central limp heavy membrane. The surface weight of the polymeric membrane (P10) is 10kg/ m².

The product is faced as standard on the exposed surfaces with a reinforced aluminium foil.

Technical Support

Technical Services Team: technical.sspl@siderise.com

Context

The information in this datasheet is believed to be accurate at the date of publication. Siderise has a policy of continuous product improvement and reserves the right to alter or amend the specifications of products without prior notice. Siderise does not accept responsibility for the consequences of using the products described outside of the recommendations within this datasheet. Expert advice should be sought where there is any doubt about the correct specification or installation of Siderise products.

Siderise Group Lady Lane Industrial Estate, Hadleigh, Suffolk IP7 6BQ T: +44(0)1473 827695 F: +44(0)1473 827179 E: sales.sspl@siderise.com & technical.sspl@siderise.com W: www.siderise.com

Published Version: CVB _v1_02_20240328_1343