GlassAcoustic Joist Roll

Improvement of sound insulation in timber floors

Description

Acoustic Joist Roll is a flexible, unfaced, glass mineral wool quilt which is lightweight, flexible, resilient and non-combustible. The rolls are 1200mm wide and partially perforated to produce 3 rolls 400mm wide or 2 rolls 600mm wide.

Application

Acoustic Joist Roll is specifically designed for friction fitting between joists at 400 or 600mm centres to improve the sound insulation of timber joist floors. Acoustic Joist Roll provides a high level of acoustic absorption, as well as improving the thermal and fire performance of the floor.

Standards

Acoustic Joist Roll is a non-combustible inorganic glass wool, defined as mineral wool in BS 3533: 1981 and is manufactured in accordance with BSI Quality Assurance Standard BS EN ISO 9001: 2000.

Durability

Acoustic Joist Roll is odourless, rot proof, non-hygroscopic, does not sustain vermin and will not encourage the growth of fungi, mould or bacteria.

Vapour Resistivity

Acoustic Joist Roll has a vapour resistivity of 7.00 MN.s.g.m.

Acoustic Joist Roll

Performance

Fire performance

Acoustic Joist Roll is classified as non-combustible to BS 476: Part 4: 1970 (1984).
 

Acoustic Performance

Acoustic Joist Roll has excellent sound absorption properties.
 
Benefits
  • Excellent sound absorption properties
  • Lightweight and easy to install
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Environmental

ECOSE® Technology
ECOSE® Technology Logo
Knauf Insulation mineral wool products with ECOSE® Technology benefit from a revolutionary, bio-based, formaldehyde-free binder technology, based on rapidly renewable materials, instead of petro-based chemicals. It reduces embodied energy and delivers superior environmental sustainability.

The technology has been developed for Knauf Insulation’s glass and rock mineral wool products, enhancing their environmental credentials without affecting the thermal, acoustic or fire performance. Insulation products made with ECOSE® Technology contain no dye or artificial colours – the colour is completely natural.
 
Acoustic Joist Roll is free from CFCs, HCFCs and any other material with ozone depletion potential in its manufacture and content and represents no known threat to the environment.
 
Acoustic Joist Roll’s manufacture has a low impact on the environment and is classified as Zero ODP and Zero GWP.
 

Handling and Storage

Acoustic Joist Roll is easy to handle and install, being lightweight and easily cut to size. It is supplied enclosed in polythene which is designed for short term protection only.
 
For longer term protection on site, the product should either be stored indoors, or under cover and off the ground. Installation instructions are on every pack.
 
Acoustic Joist Roll should not be left permanently exposed to the elements.
 

Product Data

Thickness (mm) Density (kg/m3) Length (m) Width (mm) Area per roll (m2)
100 >10 9.17 3x400 11
100 >10 9.17 2x600 11
All dimensions are nominal

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