The Isowave 23 acoustic wall or ceiling system is used to enhance a walls or ceilings that are found to underperform in terms of acoustic transmission properties. This system is also commonly used to provide a high performance ceiling in rooms such as home cinemas or studios. Also in situations where commercial activities adjoin a dwelling above or adjascent for upgrading separating floors/ceilings/walls. This system is perfect where access to the top of the floor or the otherside of the wall is not possible. This is a versatile system used in refurbishments or new builds with a decoupled ceiling as illustrated or otherwise approved by Isomass. . Isowave 23 consists of a10mm Isowave acoustic foam measured to BS 4443 and BS EN ISO 845:2009 bonded to 12.5mm high density, fibre-reinforced, square edged gypsum board. Isowave 23 system incorporates acoustic foam which is semi rigid and is an excellent absorber with high damping characteristics when bonded to an acoustically reflective rigid surface. Isowave foam is manufactured using water as a blowing agent and is free of CFCs, HFCs & HCFCs. Isowave 23 acoustic ceiling system complies with requirements of EU Regulation No 2037/2000 for ozone depletion and offers good thermal properties. Installation Fix securely to all supports working from the centre of each board outward to the edges using the specified method of fixing at 250mm maximum centres with countersunk cross-slot screws 3.9 x 30mm positioned through a decoupling bar or metal frame. Position fixings not less than 20mm from board edges and 50mm from corners. The heads of all fixings should be sunk into the surface of the board and stopped with joint filler. The square edged cement particle board should be sealed with an intumescent sealant, joints to be a maximum 1mm wide. Any excess adhesive to be removed using a spatula once the adhesive has fully hardened. A tapered edge plasterboard with all edges taped should then be fitted. Skim and lightly sand if required. Isomass offer a free acoustic detail design service to Building Materials Nationwide Ltd customers, please visit the contac t us page to get in touch.