A 12.5mm TE plasterboard bonded to an EPS E grade polystyrene (Thermal Conductivity 0.038 W/mk). Laminate EPS is for the thermal insulation of internal walls and roofs. The board size is 2400mm x 1200mm (nominal) Installation & Application The following notes are for general guidance only; and your consideration should be given to the design requirements of the local and National Building Regulations to achieve the required thermal performance at the time of installation. Installation Guide The substrate for installation should be dry, free from debris, and be of suitable load bearing capability for the weight of the board(s) to be installed. Any framework or batten system being used for installation should be installed at a maximum of 600mm centres. The board edges need to overlap any framework by a minimum of 20mm to ensure adequate support. Boards on walls should be installed with the long edges vertically with the joints between boards neatly butted to allow for either joint or skim finishing. Any cables or services must be installed within some form of conduit to ensure that they do not come into direct contact with the insulation, and the insulation should not be notched out to accommodate any of these services within the insulation, as this could be detrimental to the thermal performance. Mechanical fixings should always be used to secure the boards in addition to any adhesive method that has been employed. These fixings should provide a minimum of 25mm embedment into the substrate and must be driven below the surface of the board to allow joint or skim finishing. Fixings should be a minimum of 10mm from any edge. There should be a 5-10mm tolerance between the junction of both the ceiling & floor joints, which should be filled with a suitable flexible sealant prior to final finishes. Boards can be cut using a Plasterboard Saw or sharp Utility Knife or power tool if being employed by a competent person. Holes for sockets etc. should be cut out prior to the installation of the board to the wall or roof that is being dry lined. Where there is a requirement for the fixing of heavy items; these must be secured directly onto a framework that is installed behind the laminate board securely fixed to the substrate to ensure adequate support. When the boards are to be secured to the underside of a roof, they should be installed horizontal at 90 degrees to the rafters, with noggins installed as necessary to support the ends of the boards. Any decoration should be undertaken after the jointing or skim finishing has been undertaken in a timely fashion.
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