Alu-Timber NBS Specification
PRODUCTS
400 COMPOSITE WINDOWS:
As per Architects Drawing/Schedules
Manufacturer: Alu-Timber, The Parkside Group Ltd, Unit 5, 17 Willow Lane, Mitcham, Surrey, CR4 4NX.
Product reference: Alu-Timber Casement, Alu-Timber Tilt & Turn.
Materials: Exterior frame/ sash cladding: Manufactured from extruded aluminium alloy 6063-T6 complying with BS EN 755-9, crimped or screw groove jointed to form a complete aluminium frame.
Finish: Polyester powder coated in accordance with BS EN 12206-1: 2004 to a minimum thickness of 60 microns, Qualicoat standard, painted at Barley Chalu Ltd .
Interior frame/ sash section: Manufactured from Larch Engineered Timber, harvested from a sustainably managed source, laminated and finger jointed in profiled lengths.
Finish: Pre coated with two coats of water based lacquer.
Glazing details: All glass to conform to BS 6262 for thickness and type. Glass types must conform to client requirements for thermal and acoustic properties. All glass to conform to customer specification for thermal and acoustic properties .
Beading: Vent frames, glazed internally using both retained and site applied wedge gaskets manufactured from EPDM to meet the requirements of BS 6262 for vented and drained glazing systems. All fixed lights glazed internally using both retained and site applied wedge gasket manufactured from EPDM with security bead retaining clips, all to meet the requirements of BS 6262 for vented and drained glazing systems
Ironmongery/ Accessories: Both Side-Top-hung open out windows, hung on stainless steel friction hinges (restricted as required) and fitted with multi-point espagnolette locking mechanisms, security clips and claws fitted as per Alu-Timber Technical Manuals. Windows operated by off-set, die cast locking handles from standard finish range. Tilt & Turn Gearing with lockable handle and security
Fixing: All windows are fixed from timber frame members to the structure using either proprietary or specialised fixing lugs. Perimeter sealing carried out using silicon pointing with a sponge polypropylene backing rod in accordance with manufacturers specification ensuring bonding to two surfaces only.
410 COMPOSITE WINDOWS:
As per Architects Drawing/Schedules
Manufacturer: A firm currently registered under a third party quality assurance scheme.
Materials: Exterior frame/ sash cladding: As per Section 400.
Finish: As per Section 400.
Interior frame/sash section: As per Section 400.
Finish: As per Section 400.
Thermal improvement: Product designed to utilise the natural thermal properties of timber to the inside of the building and aluminium externally. Thermally assessed in accordance with benchmark simulations defined in Bisco BS EN 10077-2.
Exposure category to BS 6375-1/ Design wind load: Tested in accordance with BS 6375 passing at 600Pa moat 1 grading A3 for air and 500Pa moat No 1 grading E4 for water.
Operation and strength characteristics: To BS 6375-2.
Glazing details: As per section 400.
Beading: As per Section 400.
Ironmongery/ Accessories: As per Section 400.
Fixing: As per Section 400.
