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Glazing Bar System for Timber Rafters - 50 mm & 40 mm wide

Verified by manufacturer 3 months ago

ALM100/1

Lonsdale Patent Glazing & Rooflights Variant:
Third party certifications:
  • BRE Certificate

    BRE Certificate

    Certificate type

  • ISO 9001 Quality Management

    Certificate type

ThermGard-R aluminium glazing bars for timber rafters provide the ideal combination of the natural beauty and warmth of timber inside a weather-tight, maintenance free external finish.

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+44 (0)20 8801 4221 Website

Application

Suitable for commercial, public, heritage, listed building, historic, museums, galleries, offices, universities, residential, schools, colleges, atriums, conservatories, orangery, octagonal, lean-to, abutment, lantern, hip ended, monopitch, bespoke, and domestic buildings.

Description

50mm wide ThermGard - R


  • Thermally broken 50mm wide aluminium sloped glazing system suitable for commercial, public and domestic buildings.
  • Outstanding air-tightness and weathering performance independently certified.
  • Superior overlapping drainage channels and thermally broken head and eaves aluminium transoms for enhanced thermal efficiency. 
  • Suitable for double or triple insulating glass units.
  • Tested to CWCT TN66-67 and classified Class 2 Non-Fragile. May be deemed to comply with CWCT TN92 when used with recommended glass specifications.
  • Opening ventilation available for natural or smoke.
  • Designed to conform with the requirements of BS5516 2004 Parts 1 & 2 for the design & installation of sloping and vertical patent glazing when installed within the manufacturers recommendations.
  • Variable pitch down to minimum 5 degrees.
  • Wide centres and long spans means less metal and more daylight.
  • Materials are supplied Mill Finish as standard or may be polyester powder coated to standard RAL or BS colours to BS6496.



40mm wide ThermGard - R


ThermGard-R aluminium glazing bars for timber rafters provide the ideal combination of the natural beauty and warmth of timber inside a weather-tight, maintenance free external finish. The carrier rail features integral drainage channels to ensure in the unlikely event that water penetrates the capping and high-performance gaskets, it is safely transported to the outside of the building. A continuous screw on pressure plate with provides outstanding glass retention and a choice of decorative external covers are available to provide either contemporary glass roof appearance or a more traditional heritage style for roof lanterns on period buildingsDesigned to combine the benefits of more costly curtain walling sections with the rapid installation advantage of traditional two-edge support glazing, to provide thermal break roof glazing.


Features and benefits:

  • System incorporates a ventilated internal box-rafter design to minimize the risk of condensation.
  • Continuous pressure plates and snap on covers provide invisible fixings and a low profile appearance.
  • An optional period-style aluminium box-rafter and capping is available for heritage buildings.

General information

Color

Silver

Other

Polyester powder coated to any RAL, BS or Syntha Pulvin colour.

Finish

Powder-coated

Mill

Material

Aluminium

Aluminium alloy, 6063-T6 to BS 1474.

Glass

Thermal glazing.

Shape

Rectangle

Length

Bespoke

Width

Bespoke

Height

Bespoke

Uniclass

Pr_30_59_72_31 Framed rooflightsPrimary

CAWS

H10/115 Patent glazing

Specification data - Framed rooflights

Form

Flat.

Size

Span.

Single glazing: 3000 mm (recommended), Double glazing: 1900 mm (maximum).

Insert requirement.

Frame

-

Material

Aluminium alloy, 6063-T6.

To BS 1474.

Finish

-

Coating

Mill finish.

Standard.

Polyester powder-coating.

Colour

A range of architectural finishes available, including polyester powder-coating to BS 6496 in standard RAL, Syntha Pulvin or BS colour ranges.

RAL.

Insert requirement.

BS.

Insert requirement.

Syntha Pulvin.

Insert requirement.

Film thickness (minimum)

Not required.

Mill finish.

40 microns.

Glazing or infill

-

Type

  • Other specifications are available including solar control, tinted or diffused glass and photo-voltaic panels.
  • Spans are for guidance only and structural calculations should be carried out accordingly.

24 mm low-e.

1.5w/m2.k double glazed units consisting of 2 x 4 mm clear toughened glass with flush bottom edge and aluminium U-channel.

24 mm super low-e.

1.1w/m2.k double glazed units consisting 2 x 4 mm clear toughened glass with flush bottom edge and aluminium U-channel.

28 mm low-e.

1.5w/m2.k double glazed units consisting of 6.4 mm laminated, argon cavity and 6 mm toughened clear glass with stepped bottom edge.

28mm super low-e.

1.1w/m2.k double glazed units consisting 6.4 mm laminate, argon cavity and 6 mm toughened clear glass with stepped bottom edge.

6 mm clear toughened glass.

6 mm solid polycarbonate.

6.4 mm clear laminated glass.

7 mm wired safety glass.

16 mm multi-wall polycarbonate sheet blown free of swarf and taped both ends.

25 mm multi-wall polycarbonate sheet blown free of swarf and taped both ends.

Construction

Single skin.

Double skin.

Operation

-

Type

Manual.

Accessories

Not required.

End bar wing.

GlazaTherm Top hung opening rooflights with cord.

GlazaTherm Top hung opening rooflights with electric motors.

GlazaTherm Top hung opening rooflights with factory fitted pole.

Spacing

Glazing bar.

600 mm (nominal).

Generally up to and including 750 mm, but wider centres can be accommodated in some circumstances; insert requirement.

Slope

Glazing bar.

15º (minimum).

Bottom overhang lap

Glazing bar.

75 mm (nominal).

Sustainability data

Contains Red List materials

No

Country of material origin

Europe

Country of product manufacture

United Kingdom

Recyclability

Approximately 85% of the product is aluminium which 100% recyclable, remaining 15% is gaskets and thermal liners.

Recycled content

35 %

Third party certifications

BRE Certificate

BRE Certificate

Air Permeability Test BS EN 1026

BRE Certificate

BRE Certificate

Watertightness Test BS EN 1027

ISO 9001 Quality Management

ISO 9001 Quality Management

ISO 9001

Literature

TG50 System - Intermediate transom details

TG50 System - Intermediate transom details

TG50 System - Thermally broken transom assembly details

TG50 System - Thermally broken transom assembly details

TG50 System - Transom drainage details

TG50 System - Transom drainage details

TG50 Data Sheet

TG50 Data Sheet

ThermGard TG50 Non-Fragile Sloped Glazing

ThermGard TG50 Non-Fragile Sloped Glazing

Rafter Glazing Bars For Timber Rooflights & Conservatories

Rafter Glazing Bars For Timber Rooflights & Conservatories

Case studies

Marriott Hotel

Marriott Hotel

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