Danskin
 

System components

Danskin Reflex BearersDanskin Reflex Bearers
Danskin Reflex Bearers comprise softwood timber 47mm (Nom.) wide by 1800mm long with the unique “double density” fibre resilient layer adhered to the underside. They can be preservative treated if required and the standard uncompressed heights are 53mm (Nom.), 62mm (Nom.) and 78mm (Nom.) Other sizes are available as a special order. On average it is expected that the resilient layer will compress by around 4mm under normal loading.

Danskin Flanking StripDanskin Flanking Strip
6mm thick preformed ‘L’ shaped acoustic foam supplied in strips 1.8m long packed in bags containing 100 linear metres. The innovative ‘L’ shape makes it easy to fit and one size fits all floors. It is lightly trapped between the bottom of the skirting and the top of the flooring board with the excess neatly trimmed off.

High Load BearersHigh Load Bearers
It is an essential feature of effective floating floors that they deflect vertically in order to absorb impact energy and therefore reduce sound transmission. However excessive deflection under areas of high load such as kitchen and bathroom furniture is not desirable. While this can sometimes be lessened by reducing batten centres or using double rows of Danskin Reflex bearers, limited numbers of high density foam battens can sometimes be used in these local areas. On concrete subfloors High Load Bearers are also recommended for use at room perimeters. As High Load Bearers have a lesser acoustic performance than Reflex Bearers a warning message regarding excessive use is printed on the top surface. Danskin High Load Bearers are manufactured to a similar height as compressed Danskin Reflex Bearers and provide superior support.

Table 1

Design Approach

Performance Requirement

Measured Performance

Guidance / Specified Construction

Scotland Technical Handbook Section 5:

Floor Type 2 - Floating Layer F1

Minimum ΔLw 25dB on Annex 5.B concrete floor.

26dB for minimum 62mm high Reflex bearer

Floor Type 3B - Floating Layer

Minimum ΔLw 14dB on Annex 5.B timber floor.

15dB for minimum 62mm high Reflex bearer

Robust Detail Constructions

E-FC-1

Minimum rd ΔLw 17dB on Appendix D floor

27dB for FFT1 bearer (78mm high)
24dB for FFT3 bearer (53mm high)

E-FC-2

E-FS-1

E-FT-1

Minimum rd ΔLw 15dB and Minimum rd ΔRw + Ctr 13dB

19dB for FFT1 bearer (78mm high) and 14dB for FFT1 bearer (78mm high)

Own Design / ADE 2003

 

 

Impact & Airborne sound site measurements as required by Building Regulations

Where available, refer to Performance Data Sheets for test results on similar constructions.

© J Danskin & Co. Ltd. 1 Netherton Road Wishaw ML2 0EQ T: 01698 356000 F: 01698 372222 E: [email protected]