Walls Issues to Consider - Masonry Partial Fill Cavity Wall Insulation Insulated Dry-Lining Plasterboard Insulated Dry-Lining Plasterboard - Timber Frame Issues to Consider - Timber Frame Timber Frame Insulation

Walls - Insulated Dry-Lining Plasterboard Mechanical Fixing to Timber Framing/Battens/Metal Furrings INTRODUCTION This method of internal dry–lining is suitable for use on timber frame constructions or on any dry masonry walls that will support and retain the battens/furrings and associated fixings. This method should be used when fixing to solid wall constructions that are susceptible to rain water penetration. This method of wall insulation combines insulation, dry–lining and vapour control in one board. Figure 1 PRODUCT DATA ACHIEVING U–VALUES 1 Product thickness = insulant thickness + 12.5 mm plasterboard (l–value = 0.18 W/m.K). 2 For the purposes of these calculations all examples are based on a brick, cavity, brick wall. 3 For the purposes of these calculations all examples are based on a render finished dense block, cavity, dense block wall. 4 The l–value quoted is in accordance with the Harmonised European Standard BS EN 13166 (phenolic) using so called 90/90 principles. Comparison with alternative products may not be appropriate unless the same procedures have been followed. 5 For the purposes of these calculations the standard of workmanship has been assumed good and therefore the correction factor for air gaps ignored. FIXING DETAILS The boards should be fixed to timber framing/battens set at a maximum of 600 mm centres and positioned horizontally at floor and ceiling level. The timbers should run vertically and be wide enough to give a minimum of 20 mm support to all four edges of the board. The boards should be fixed with galvanised clout nails, long enough to allow 25 mm penetration of the timber. These should be placed at 150 mm centres and not less than 10 mm from the edges of the board. The galvanised clout nails should be driven straight with the heads embedded just below the surface of the board. Take care not to overdrive nails. Treat timbers where appropriate. Cutting should be carried out using a fine toothed saw. Boards may also be fixed using metal furring systems, please contact the Kingspan Insulation Technical Services Department for details.