AngelStep® 630 acoustic underlay for vinyl

The AngelStep® range is an acoustic underlay for the treatment of Impact and airborne noise transfer.

AngelStep® construction combines a highly effective support and cushion. It provides maximum performance for minimum thickness combining impact and vibration damping and sound absorber.

The resilient polyester core layer absorbs impact energy and residual airborne noise from above and below, transforming wave vibrations into heat energy. AngelStep 630 greatly reduces airborne sound waves noise above or below the floor - and complies with the Building Code of Australia in respect to separating floors between adjoining dwellings. When AngelStep® is installed, it delivers optimum performance and comfort for both resident and neighbours alike

Compared to products made by others, Acoustica’s AngelStep range of underlays have been shown in independent comparison tests to offer a more effective acoustic treatment, a thinner solution, that is also cost effective.

The product has been independently tested:

  • to achieve Lnt,w of 37 - better than AAAC rating 6 stars - independently tested by Vipac Engineers & Scientists Ltd May 2016; document 20E-16-0040-455704 under loose lay vinyl in a building over 50 years old
  • to achieve Lnt,w of 42 - better than AAAC rating 5stars - independently tested by Vipac Engineers & Scientists Ltd June 2016; document 20E-16-0085-455973 under 20mm solid oak on plywood with a 190mm concrete slab, 80mm cavity with no insulation & 10mm plasterboard ceiling
  • to achieve Lnt,W of 43 - better than AAAC rating 5 stars - independently tested by Vipac Engineers & Scientists Ltd October 2016; document 20E-16-0192-ADM-456564-0 under Novocore vinyl with a 200mm concrete slab with bare concrete ceiling

It is 4mm thin and is supplied in tiles 1200x1200mm(1.44m2)

The unrivalled performance of AngelStep® 630 is due to its unique and patented polymer construction. No degradation of acoustic properties due to structural collapse under the weight of heavy furniture, castors and appliances. For thin vinyl or vinyl that does not interlock or clip together we recommend installation of the vinyl on top of flooring grade plywood on top of the AngelStep product

Apartment dwellers have long complained about impact noise intrusion due to footsteps and clatter of utensils and articles dropped on to the floor in apartments overhead. In addition to this impact noise, many occupants have also endured excessive airborne noise transmitted from powerful TV and audio systems.

Each building is different, to achieve AAAC 6 star rating we recommend an onsite tapping test to tune the solu8on to suit your project; for more information on a tapping test see this link


AngelStep® 630

 

 

AngelStep is a resilient product, however the intent is that the product is providing an acoustic treatment. In any arrangement it is important that the flooring system that is installed above the acoustic underlay has its own structural integrity.

typical installation drawings

for more information please contact us

 

Key benefits

  • outstanding acoustic performance
  • high sound absorption
  • high impact insulations & strength
  • water & most chemical resistant
  • will last the life of the flooring material
  • easy to install
  • no VOCs, no smell
  • 4mm thick
  • Australian designed & manufactured
  • Global Green Tag Certified

Fire rating

AS ISO 9705-2003: classification Group 1 ; (SMORGArc) <100m2/s2; as required by BCA C1.10; tested 16/05/2012 BRANZ FI 4871

ISO 9705 1993: classification Group 1-S; smoke production rate <5.0m2/s as required by NZBC C/VM2; EN13501-1:2007 B-s2, d0 report dated 22/07/2009

VOC emissions tested by Cetec Pty Limited (CV080408) for chemical emission & is classified as low VOC. 

VOC Concentration 0.01mg/m3

 

Product Specifications

AS630/1200x1200x4

Standard panels are 1200x1200x4mm easily cut to size


Acoustic tapping report

Acoustica’s product range of noise control solutions for flooring systems has been repeatedly independently tested to consistently achieve six stars in the Association of Australian Acoustical Consultants (AAAC) star rating system. However, results will vary depending on the construction, substrate and surface materials of each project. 

Acoustica can provide site specific testing and certification for each project site, prepared in accordance with the International Standard ISO 16283-1:2014 Acoustics -- Field measurement of sound insulation in buildings and of building elements -- Part 1: Airborne sound insulation (refer ISO 140-7:1998). There is a charge for this service; for more information on a tapping test see this link

 


Technical

The BCA provides minimum construction standards for various building classes including acoustic privacy. The BCA requirement is a weighted standardised impact sound pressure level with spectrum adaptation term Ci, of less than or equal to 62 Lnt,w+Ci. However, the reality is that this is in most cases unacceptable to occupants and can result in the need for costly reparation works.  In response the Association of Australian Acoustical Consultants (AAAC) has developed the star rating system to rank the acoustical quality of apartments and provide guidance in the design and construction process.

table 4: AAAC star rating system

AAAC star ratingimpact isolation of floors Lnt,wAAAC descriptionapprox IIC rating
2 starLnt,w 65clearly audibleapprox IIC 45
BCALnt,w 62BCA clearly audibleapprox IIC 48
3 starLnt,w 55clearly audibleapprox IIC 55
4 starLnt,w 50clearly audibleapprox IIC 60
5 starLnt,w 45audibleapprox IIC 65
6 starLnt,w 40just audible or barely audibleapprox IIC 70
source: AAAC

We note that according to the Australian Association of Acoustic Engineers (AAAC) the IIC rating system has been replaced by a measurement called LnT,w (extract from AAAC literature):

Structure borne noise includes footsteps on hard floors, scraping chairs and dropping objects. For this type of noise, Australia and New Zealand have adopted the measurement called the weighted standardised impact sound pressure level LnT,w. A reduction in this parameter corresponds to an improvement in impact isolation. This replaces Impact Insulation Class (IIC), which is in common use in Australia. The AAAC rating system uses LnT,w. There is an approximate relationship between LnT,w and IIC. Either value can be subtracted from 110 to approximately indicate the other.

 

 


References

  • NCC 2016 Building Code of Australia (BCA) Version 1.0 February 2016 release date May 2016
  • ISO 12999-1:2014 Acoustics -- Determination and application of measurement uncertainties in building acoustics -- Part 1: Sound insulation (refer ISO 140-2:1991)
  • ISO 16283-1:2014 Acoustics -- Field measurement of sound insulation in buildings and of building elements -- Part 1: Airborne sound insulation (refer ISO 140-7:1998)
  • ISO 16283-1:2014 Acoustics -- Field measurement of sound insulation in buildings and of building elements -- Part 1: Airborne sound insulation (refer ISO 140-14:2004)
  • ISO 717-1:2013 Acoustics -- Rating of sound insulation in buildings and of building elements -- Part 1: Airborne sound insulation (refer AS/NZS 1276.1:1999Acoustics - Rating of sound insulation in buildings and of building elements - Airborne sound insulation)
  • Association of Australian Acoustical Consultants (AAAC) Guideline for Apartment and Townhouse Acoustic Rating Version 9.7 November 2010
  • Association of Australian Acoustical Consultants (AAAC) Guideline for Commercial Building Acoustics May 2011
  • Australian Building Codes Board (ABCB) Guideline Document on Sound Insulation in Buildings 2004
  • AS 1530.1-1994 Methods for fire tests on building materials, components and structures - Combustibility test for materials
  • AS/NZS 1530.3:1999 Methods for fire tests on building materials, components and structures - Simultaneous determination of ignitability, flame propagation, heat release and smoke release