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Application

Commercial, public and domestic buildings.

Description

Rooflight glazing system with a thermally broken box-bar with continuous carrier rail, pressure plate, gasketry and decorative external cover.

Features and benefits:

  • Thermally efficient, with double and triple solar control options available.
  • Can provide long spans, which allows more daylight into rooms.
  • Designed to conform to the requirements of BS 5516: 2004, Parts 1–2 for the design and installation of sloping and vertical patent glazing.

Fixing to steel is with stainless steel self-drilling screws (top and bottom), or wood screws when fixing to timber. Alternatively, single hole fixing shoes are available if required - consult manufacturer for details.

Applications:

Commercial, public and domestic buildings.

General information
Size

Consult manufacturer and insert requirements.

Material

Glazing bar, capping and fittings: Extruded aluminium alloy, 6063-T6

Fasteners: Stainless steel, grade A2

Co-extruded thermal barrier with co-extruded pressure plate and gaskets: Polyvinyl chloride (PVC)

Uniclass 2015
Pr_30_59_72_31 Framed rooflightsPrimary
Specification data - Framed rooflights
Product Reference

ThermGard TG50 Sloped Glazing System

Design

Insert drawing/ reference.

Size

Consult manufacturer and insert requirements.

Glazing -
Infill

Double glazed, heat soak test (HST) toughened clear glass (laminated softcoat glass)

Thermal transmittance (U-value): 1.2 W/m²·K.

Double glazed, heat soak test (HST) toughened neutral solar control glass 70/30 (laminated clear glass)

Thermal transmittance (U-value): 1.0 W/m²·K.

Triple glazed, heat soak test (HST) toughened neutral solar control glass 70/30 (laminated softcoat, clear glass)

Thermal transmittance (U-value): 0.6 W/m²·K.

Box bar

Box bar 2

Box bar 3

Box bar 4

Frame finish

Mill finish

Standard.

Polyester powder-coated

Insert RAL or BS colour code.

Non-fragility rating

Required

Class 2 CWCT TN66/67 and TN92.

Not required

Flashings

Aluminium

Lead

Standard product features

Material:

  • Glazing bar, capping and fittings: Extruded aluminium alloy, 6063-T6.
  • Fasteners: Stainless steel, grade A2.
  • Co-extruded thermal barrier with co-extruded pressure plate and gaskets: Polyvinyl chloride (PVC).

Minimum pitch:

5°.

Technical characteristics:

  • Air permeability (to BS EN 12207: 2016, Class 4): 0.71 m³/h.m² at 600 Pa.
  • Weather performance (to BS EN 12208): Weather-tight to Class E1650.
  • Fire rating (to BS 476): External fire exposure: Class AA; non-combustibility: Non-combustible; surface spread of flame: Class 1.

Product Options

Glazing:

- Infill:

Other infills may be incorporated; suitable to receive 24–46 mm double or triple glazing and polycarbonates. Photo voltaics, composite panels, glass reinforced plastic (GRP) and solar thermal panels can also be incorporated on request - consult manufacturer for details.

- Box bar:

Consult manufacturer for further details.

Non-fragility rating:

Tested to CWCT TN66-67, and classified Class 2 non-fragile. May be compliant with CWCT TN92 when used with recommended glass specifications.

Literature
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