SpanGard Patent Glazing Technical Specifications

Geometry and Dimensions

Pyramids, rectangles, hexagons and polygons are all possible within the boundaries or regular geometry. Standard roof pitches are from 22.5° in 5° increments to 45°. Roof Lights may be manufactured to infinite length with a width restriction up to 6000m subject to infill and roof pitch. Vertical upstands on Lantern Lights are approximately 500mm high as standard, but other heights may be incorporated on request. Special commissions for irregular shapes, sizes and pitches should be discussed with our technical department.

Specification

Fabricated from the ThermGard series patent glazing system incorporating extruded aluminium alloy 6063-T6 Ridge, Hip, Eaves, Cill and Flashings to BS1474. Supplied in component form for assembly on site to form an entirely self-supporting structure. All joints are TIG welded or mechanically jointed with spigots and stainless steel fasteners to BS EN ISO 3506. Gaskets are extruded Thermoplastic Rubber quality to BS 7412.

Performance

SpanGard is designed to conform with the requirements of BS 5516, 1991 when installed within the manufacturer's recommendations.

Thermal Break

If required a thermally improved option is available. Please contact our technical office for further details

Appearance

Materials are supplied Mill Finish as standard. A range of architectural finishes is available including polyester powder coating to BS 6496 in standard RAL, Syntha Pulvin or BS colour ranges.

Ventilation

May be achieved either through GlazaVent, our top hung roof ventilator, or by casement vents in the upstands of Lantern Lights Various factory fitted opening mechanisms are available including manual, pole or cord operated, electrical, thermostatic or smoke activated controls.

Infill

All popular specifications can be accommodated including 6/7mm Single Glazing, 24mm Double Glazed Sealed Units or 10mm and 16mm Polycarbonate Sheeting. Other infills should be discussed with our technical department. Double Glazed combinations should feature a suitable 'step' to the bottom edge to avoid thermal breaking.

Fixing

Must be carried out using a suitable fastener to a structural curb capable of withstanding the relevant imposed self-weight, wind and snow loads without any spread or movement.