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The NORMSTAHL OSFI42A overhead sectional door is suitable for many types of buildings, with regards to both function and appearance. High flexibility makes it possible to install this door in almost every type of building. The high light admission allows working environments with maximum lighting. The door slides up under the roof when opened, allowing free space around the door opening and leaving the door opening completely free. The door is made of insulated anodized aluminium tubular profiles, filled with sandwich panels or transparent infills, see table on next page. The frames are designed with a broken cold bridge to provide minimal thermal transmittance. This reduces energy cost (in case the space is conditioned). The frame sections have integrated finger pinch protection. There are top-, bottom- and side-seals and seals between door sections. The standard track system is made of galvanized steel. The balancing system balances the door by applying a force nearly equal to the weight of the door leaf. This allows the door leaf to be moved up and down, and to stay open in any position. The balancing system (torsion spring system or weight balancing system) supports heavy forces. In case of a spring or cable break, its counterforce is lost. The door is therefore equipped with two safety devices that can block downward door movement; Spring Break Device (standard) and Cable Break Device (option, not declared in this EPD). Filling and description: • DAD: Double san Acrylic Double sealed (SAN coated) Further standards that can be applied for sectional doors are: • Wind load: EN12424 Class 3 (≤ 4250 mm DLW) Class 2(> 4250 mm DLW) (Higher classes on request) • Thermal transmittance: EN12428 3.1 W/(m²·K) Double acrylic glazing 2.6 W/(m²·K) Triple acrylic glazing 2.2 W/(m²·K) Double energy glazing (valid for a DLW5000 x DLH5000 mm door) • Water penetration: EN12425 Class 3 (Door surface 4000 x 3310 mm) (no passdoor) • Air permeability: EN12426 Class 3 (4000 x 3310 mm without passdoor) • Acoustic insulation: EN ISO 10140-2 R - 24 dB (door surface 4210 x 2590 mm) The electrical unit as identified is in compliance with the following directives: 2006/42/EC Machinery Directive (MD) 2014/30/EU Electromagnetic Compatibility Directive (EMCD) 2011/65/EU RoHS 2015/863/EU RoHS Harmonized European standards, which have been applied: EN 12453:2017 Industrial, commercial and garage doors and gates – Safety in use of power operated doors – Requirements and test methods EN 60335-1 Household and similar electrical appliances - Safety -Part 1: General requirements