Architect and Builder Magazine South Africa May/June 2015 | Page 15

High Pressure Injected Polyurethane Insulated Panels POLYURETHANE PANEL INFORMATION Characteristics of Injected Polyurethane When it comes to selecting the best overall insulation product for walls, ceilings and roofs, polyurethane is the best product of choice. No other foam insulation has the perfect combination of features that are so important for long term performance. The following are among the characteristics of Injected Polyurethane: • Delivers the highest R-Value per inch of thickness • Delivers the lowest K-Value per inch of thickness • Is moisture resistant & water repellent • Possesses dimensional stability • Demonstrates excellent performance in fire tests • Conforms to DIN 4102 BS Fire Rating • High load-bearing capacity • Excellent resistance to abrasion • Resistant to solvents, oils, ozone and water • Outstanding resilience • Good electrical characteristics and properties • Resistant to mildew, mould and fungus • Good machining characteristics • High cut resistance and tear strength properties • Excellent insulating efficiency over a wide temperature range • PU does not melt or drip when heated • PU does not produce spread of flame within the core, nor does it add to the severity of the fire • PU insulation products are thermo set, which means that once manufactured, it is rigid, will not soften or melt and remain strong, even at elevated temperatures • PU can withstand elevated temperatures without losing its insulating power • High strength to weight ratio and load bearing properties • Excellent adhesion to substrates • Conforms to requirements of the Montreal Protocol IMPORTANCE OF POLYURETHANE METAL FACED PANELS IN INDUSTRIAL BUILDINGS For economic and legal reasons, it is essential to improve thermal insulation in almost all areas of building, civil engineering, industrial engineering, plant construction, refrigeration, cooling technology and district heating supply. Energy conservation, safety in building physics and high economic demands are prerequisites nowadays for insulation in all areas of application. The best possible properties are therefore demanded of insulating materials and designs, such as were previously only required in very extreme areas of application. Building elements for roofs and façades with a polyurethane rigid foam core between metal facings offer high structural strength combined with an excellent insulation which fulfil economic requirements for industrial buildings. A wide field of applications for different buildings has been opened up by the properties of the PUR sandwich panel. These include insulation capacity, mechanical strength and fire behaviour. THESE BUILDING PANELS ARE WIDELY USED TODAY ON FAÇADES AND ROOFS FOR: • Industrial buildings for production and storage • Warehouses and freezer storage facilities • Airport buildings • Sport & leisure facilities • Classrooms for schools, ablution & office buildings • Insulated roof panelling FIRE BEHAVIOUR The success of the metal faced PUR panel is connected to those superior properties, such as insulation and mechanical resistance. But as PUR rigid foam is an organic material and therefore a combustible product, there may be certain concerns regarding risks in the case of fire. Assessment of the fire performance of combustible products is based on ignitability and spread of flame tests. PUR rigid foam fulfils the relevant fire classification requirements currently in force in countries all over the world. As PUR rigid foam is a thermosetting material, it does not melt nor does it form droplets. This is an important feature which assists in avoiding possible fire initiation by those droplets, especially roof applications. DALUCON HAS 2 HIGH PRESSURE INJECTED POLYURETHANE PRESSES: • High pressure injected • 40KGm3, density on all our panels • 40mm up to 125mm in panel thickness • Panel length from 2.4m up to 13.5m. Presently the longest PU Press in SA • IBR roofing panel with Dalucon’s unique tongue and groove panel joining system • Roofing from 50mm up to 125mm thick • All panels join with tongue and groove system • Fluting on all panels can be done • Various colours of Chromadek are available to suit your architectural design • Chromadek trims can be made up • Sliding doors, slam-on doors, personnel doors, using the highest quality extrusions and door seals • Doors are made up to clients size and specifications • High Volume Manufacturing 95 Park Avenue, Highway Business Park, Centurion, South Africa Tel: [phone] | Fax: [phone] | Email: [email protected] | www.dalucon.co.za