Impact Sound Measurements on Floors Covered with Small Patches of Resilient Materials or Floating Assemblies

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TypeTechnical Report
Series titleInternal Report (National Research Council Canada. Institute for Research in Construction); no. IRC-IR-802
Physical description31 p.
AbstractResilient materials are commonly placed on top of a hard floor surface to reduce impact sound transmission to rooms below. Examples of such are carpets and vinyl or cork flooring. A raft of material, such as a wood or concrete slab, may also be placed on top of a resilient layer to form a ?floating? floor. All of these systems may be referred to collectively as floor toppings. The same floor topping in combination with different base floors provides quite different impact sound insulation ratings, partly because the base floors give different sound insulation and partly because of different interactions with the base floor. Thus it is often impossible to select the most effective floor topping from several that have been tested on different base floor assemblies and only composite impact sound insulation ratings are available. An ISO test procedure measures the improvement due to a floor topping when it is placed on a concrete slab. The improvement may then be used to estimate the impact sound insulation of floors incorporating concrete slabs. This project confirmed that the ISO procedure works well and that small areas of floor topping specimens can be evaluated without serious error. The measurements showed that these improvements may not be applied to joist floors with lightweight subfloors such as plywood. Improvement ratings for a number of generic materials are provided in the report.
Publication date
PublisherNational Research Council Canada
AffiliationNRC Institute for Research in Construction; National Research Council Canada
Peer reviewedNo
NRC numberNRC-IRC-9918
NPARC number20331190
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Record identifier571c9fba-ad95-4bb2-8d11-1088ee2924b4
Record created2012-07-18
Record modified2017-06-14
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