dBoard is a high performance and versatile acoustic building board. dBoard can be used as an alternative to plasterboard to dramatically increase the acoustic performance of existing and newly constructed walls and ceilings.
The dBoard Independent Wall Lining Specification is ideal for reducing the sound transfer through separating walls in terrace and semidetached housing as well as flats and apartments. Whether you need to meet the requirements of Building Regulations Part E or are looking for increased comfort and privacy, dBoard will offer high performance and minimal loss of room space.
Using an independent metal stud as the support structure, rather than a clip and channel system or resilient bar, means it is not necessary to drill into the wall, saving time, money, and disruption.
Acoustic performance
| Lightweight Blockwork Wall (600kg/m3) | |
| Airborne | |
| DnT,w (dB) | DnT,w+Ctr (dB) |
| 38 | 35 |
| dBoard Independent Wall Lining | |
| Airborne | |
| DnT,w (dB) | DnT,w+Ctr (dB) |
| 55 | 52 |
| Improvement | |
| Airborne | |
| DnT,w (dB) | DnT,w+Ctr (dB) |
| +18 | +17 |
Tests carried out in accordance with BS EN ISO 140 Part 4 and rated to BS EN ISO 717 Parts 1 and 7 by Spratt and Hamer (UKAS). Test references: 14348S-9 and 23113S-1
Note: Building Regulations Approved Document E (England and Wales) uses a unit of measurement for airborne sound insulation which places much more emphasis on low frequency performance. Due to the inherent difficulties of measuring low frequency noise, a significant tolerance on the accuracy of airborne sound test results should be expected. Site conditions and workmanship can also limit reproducible results and therefore the above should be viewed as indicative of performance only.
Firstly, a framework should be built using Protektor ECO or DIN 50mm metal studwork (or equivalent) with associated floor and ceiling channels. The floor and ceiling channel should be isolated using SRS Impactafoam self-adhesive strips. The studs should have a minimum 10mm isolation gap away from the masonry wall that is being upgraded for isolation.Maxi Slab 50 should be friction- fitted between the studs for absorption within the cavity.
dBoards are then fixed to the metal studs using 3.9x30mm Maxi screws. The black barrier of the dBoard should face into the room. dBoard should be installed in a brick-bond pattern, with staggered joints, and the utmost care should be taken to ensure there are no gaps.
15mm Soundshield Plus plasterboard (or equivalent) should then be installed over the dBoard using appropriate fixings.
Where the wall lining abuts a wall, floor or ceiling, the edges of the dboard and plasterboard should finish 3-5mm away from the surface and this gap should be treated with a bead of SRS Acoustic Sealant. This helps to improve airtightness and reduce sound transmission into the existing structure.
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Sound Reduction Systems Ltd (SRS) are expert manufacturers of high performance sound insulation and sound absorption products for use within buildings. With over 40 years experience in the acoustic supply industry and IOA accredited technical staff SRS can offer expert advice on any noise problem
Sound Reduction Systems Ltd
Adam Street, Off Lever Street
Bolton,
Lancashire
BL3 2AP
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01204 380074
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