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Project overview

PROJECT BACKGROUND

The Sebel Yarrawonga is a $48 million luxury, international 4.5-star boutique hotel and serviced apartments set amid 400 acres of stunning Australian paradise. Situated on the banks of the iconic Lake Mulwala, it offers exquisite holiday opportunities along with a multitude of sporting activities, all within a
5-minute drive of the established Yarrawonga Township.

THE CHALLENGE

Being the #1 most trusted brand amongst the Australian flooring trade*, Bostik were contacted and asked to respond to adhesive bonding requirements for areas of 15mm thick engineered timber flooring throughout each of the luxury suites. Working with head contractor Hutchinson Builders, distribution partner Bowens and flooring contractor Mckinnon Constructions, a high performance solution was developed with the aim of reducing the overall time and cost to install the floor all the while providing the clients Accor with an effective sound abatement solution to meet their strict performance requirements. The answer was Ultraset® 3 in 1, Bostik’s premium timber flooring adhesive that has been developed to save builders, contractors and developer’s time and money on timber flooring installations by incorporating an adhesive, moisture control layer and acoustic membrane into a single, easy to use product.
Disclaimer: *As found in a 2019 Quantum Research Study of 100 Australian Flooring Installers and Retailers ‘Bostik Ultraset’ is the most trusted hardwood flooring adhesive brand in Australia.

THE SOLUTION

Bostik worked in close collaboration with Hutchinson, Bowens and Melbourne based acoustic consultants Renzo Tonin & Associates to develop a proposal inclusive of onsite impact noise testing, comprehensive costings and scheduling benefits in an effort to present a viable solution and alternative to the specified ‘dual bond’ timber flooring system which incorporated multiple layers and a separate acoustic treatment.

For the acoustic test, two 1m x 1m samples of 15mm thick engineered timber were bonded to the concrete slab using Bostik Ultraset® 3 in 1 in accordance with the relevant ISO Standards. A tapping machine was then placed onto each sample to determine the impact sound insulation of the overall system, with the resulting noise levels recorded in the receiver room below using 3 microphone sweeps to measure the average noise level and achieve the unbiased results requested by the project team.

THE RESULT

Readings obtained by Renzo Tonin confirmed an impact sound insulation result of 49 dB inclusive of the 160mm concrete slab, 13mm acoustic plasterboard suspended ceiling, 250mm ceiling cavity with 75mm 14kg/m3 glass wool insulation in the cavity. A result that exceeded the elevated 50dB client requirement for floors/ceilings separating bedrooms with hard floor finishes.

BENEFITS

The decision to use Bostik Ultraset® 3 in 1 saw the project benefit in a multitude of ways. The flooring contractors realised an increase in daily productivity due to not requiring separate moisture barriers and acoustic matting in addition to the patented Thickness Control™ Spacers within the adhesive maintaining a uniform applied thickness, which in turn allowed tradesmen to walk on the timber during the installation process. These efficiencies flowed directly onto the builder, supporting trades and ultimately, the developer.
Reducing the time required to install areas of timber flooring subsequently allowed follow on trades to commence earlier and ultimately deliver an installation within budget, ahead of schedule all the while guaranteeing a comfortable environment.