VELUX modular skylights - double-glazed (HFC 080220 0010)

Description

VELUX modular skylights are sash-frame constructed single skylights with a high-insulating glazing unit. VMS are delivered as prefabricated modules with factory-finished flashings to ensure superior water tightness. Made from a composite material VMS ensures excellent energy performance and high strength. VMS are available as fixed and venting modules. Venting skylights are top-hung with a number of sizes are also approved for smoke ventilation. http://www.modularskylights.velux.com/ Technical Information Property Value Unit Thermal transmi ance - Uw 1.4 W/(m²K) Total solar energy transmi ance - g 0.58 - EPD Number: BREG EN EPD 000069 Date of issue: 15 December 2015 Expiry Date: 15 December 2020 BF1331ECOP Rev 0.3 Page 3 of 9 © BRE Global Ltd 2015 Product Contents Material/Chemical Input % Insula ng glass unit 57.4 Composite frame, glass ber 18.5 Aluminium 7.1 Wood 7.0 Plas cs 5.6 Other metals 3.4 Other materials 1.0 Manufacturing Process The key processes in the production of VMS, i.e. pultrusion of composite frames and assembly of final products, currently take place within the VELUX Group, ensuring that high data quality of the foreground processes are available. In practice, all energy flows are calculated from the detailed environmental accounting system and the weight of the materials are determined from adequate bills of materials, including also the packaging solution. The pultrusion process starts with racks or creels holding rolls of doffs of fiber roving. The PUR resin is a mixture of isocyanate and polyol which is injected directly into the die where the fiber reinforcement becomes fully impregnated. As the resin rich fiber exits the resin impregnation system, the un-cured composite material is guided through a series of tooling. Once the resin impregnated fiber is organized and removed of excess resin, the composite will pass through a heated steel die. Precisely machined and often chromed, the die is heated to a constant temperature, and has several zo