E-Cousti Direct Solution
Description
The E-Cousti Direct Solution is an acoustic flooring board designed to provide quality sound attenuation with minimal thickness, suitable for use in both new build and refurbishment projects.
E-Cousti Direct Solution meets the acoustic requirements for impact and airborne sound as set out in Approved Document E of the Building Regulations, when used on an appropriately insulated timber floor. It comprises a 22mm Tongued and Grooved Chipboard laminated to 5mm closed cell polyethylene foam bonded to 1mm E-Cousti Membrane.
| Components: |
28mm E-Cousti Direct (laid on)
Timber Joists 225mm x 50mm (on hangars at 450mm centres)
100mm Mineral Wool (nominal density 45kg/m3 between joists)
Resilient Bars (at 400mm centres screwed to joists)
2 x 15mm Acoustic Plasterboards (nominal density 12.5kg/m2 per board)
Perimeter sealed with E-Cousti Ecostrip
E-Cousti Fix and Seal must be used to ensure the acoustic integrity of the structure
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| Size: |
28mm x 2400mm x 600mm |
| Weight: |
25kg per board |
| Fire Protection: |
60 minutes |
Technical Installation Guide
- The E-Cousti Direct boards should be laid with the long axis perpendicular to the joists at 400mm centres, to ensure the joints between the boards fall on a joist, in a staggered pattern.
- The E-Cousti Direct boards must not be screwed or nailed to the joists. The tongued and grooved joints must be glued with E-Cousti Fix & Seal allowing 24 hours curing time. This creates a floating floor decoupled from the structure of the floor.
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- The floor must be decoupled from the perimeter wall by using E-Cousti Ecostrip flanking strip. It is recommended that the lower part of the flanking strip is tacked in position with spray adhesive whilst the E-Cousti Direct boards are fitted, particularly along the perimeter walls parallel to the joists.
- Once the boards are fitted and glued, the flanking strip should be turned over the top of the E-Cousti Direct boards and trapped below the skirting to form a completely isolated floating floor.
- Any excess flanking strip should be trimmed off in line with the skirting and a bead of E-Cousti Fix & Seal placed along the skirting to finish.
- Internal partitions as defined by Approved Document E should be built off an E-Cousti Direct platform where it is part of a separating floor structure in order to reduce the risk of flanking sound being carried through the joists to the ceiling below. Check with the architect/structural engineer to determine if the floor needs support joists or noggings for the partition to be built. Timber or metal stud section may be used, but it is essential that the fixings to the sole plate do not penetrate the resilient layer of the E-Cousti Direct. Where the ceiling/floor above is a separating element and uses resilient bars running through over the line of the partition a resilient bar nogging should be used. The resilient bar nogging is formed where the partition is running parallel to the ceiling joists by fixing noggings at 1200mm centres between the joists and protruding below by the depth of the resilient bars, and where the partition runs perpendicular to the direction of the joists a batten equal to the depth of the resilient bar is fitted across the joists. The purpose of the resilient bar nogging is to prevent the bar being compressed and its function impaired
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