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Description

A rooflight system for commercial and public buildings. The system consists of prefabricated modular skylights, including profiles, panes, flashings, control systems for natural and smoke ventilation and roller blinds.

Atrium roof glazing consists of multiple rows of Longlights, supported only by structural beams, forming large glazed areas of identical looking venting and fixed units. A drainage gutter separates each strip. The design of the flashing allows for configurations with pitches between 5° and 25°.

Benefits:

  • Framing material ensures very low U-value.
  • Complete daylight and ventilation control.
  • Superior environmental profile compared to aluminium rooflights.
  • Slim profiles and flush exterior surface provide an elegant appearance.
  • Integrated chain actuator creates an identical look for fixed and venting modules.
  • Internal blinds complete the interior with a 'free-floating' design.

Standards:

  • ACR(M)001 Class A non-fragile assembly.
  • CWCT TN66/67: Class 2 ('T' Pane only).
  • CE-marked to BS EN 14351-1.
  • Tested and approved in accordance with BS EN 12101-2.

General information
Material

Aluminium

Size

1200 x 675 mm

Uniclass 2015
Framed rooflights (Pr_30_59_72_31)Primary
Specification data - Framed rooflights
Product Reference

Atrium Longlight 5–25° Modular Skylight

Roof pitch

As drawing

Arrangement or combination

As drawing

Kerb

See 'Options' below and insert requirements.

Glazing -
Type

Double glazed

Ug: 1.1 W/m²K (centre pane) / Uw: 1.4 W/m²K (glazed module).

Triple Glazed

Ug: 0.7 W/m²K (centre pane) / Uw: 1.0 W/m²K (glazed module).

Light Transmittance (Tv)

Pultruded Composite (80% Fibreglass/20% Polyurethane)

Operation

HFC, Fixed

HVC, Smoke ventilation

HVC, Natural ventilation

Blind -
Type

Not required

Internal

Colour

Not applicable

Grey (4083)

White (4084)

Black (4085)

White, fire resistant (4094)

Accessories

Not required

To be used when selecting smoke ventilation modules.

Control Unit (KLC 400), Control Pad (KLR 200)

To be used when selecting natural ventilation or fixed modules with blinds.

Rain and wind sensor set (KLA S105)

To be used with natural ventilation modules.

Control Switch (KLI 110)

Can be used in place of the Control Pad.

Standard product features

Framing:

Pultruded fibreglass and polyurethane composite that gives high strength and low thermal conductivity. The dimensions of frame and sash profiles are not affected by the size of the rooflight module as loads are transferred to the mounting brackets.

The inside surface is treated with white paint (NCS S0500-N, gloss 30: nearest RAL colour, 9010), while the aluminium cladding is coated with granite grey, scratch-resistant powder lacquer.

Fixings:

Skylight modules to clamp to structural steel/ metal plate with the use of pre-fixed mounting brackets.

Mounting bracket:

Galvanized steel multi-brackets at each corner of the rooflight.

Flashing:

Prefabricated modular flashing with integrated 50 mm insulation and snow stop. Grey painted aluminium.

Technical properties:

  • Acoustic performance: 35 dB.
  • Air permeability: Class 4.
  • Fire rating: Class B.
  • Watertightness: E900.
  • Wind load resistance: Class C5.

Product Options

Kerb:

  • Timber – c/w metal plate (100 x 8 mm) by Main Contractor – not suitable for Ridgelight or Atrium Ridgelight.
  • Structural steel – by Main Contractor.
  • Concrete – c/w metal plate (100x8mm) by Main Contractor.

Window size:

Available in modules of:

  • 675 x 1200 mm, 675 x 1400 mm, 675 x 1600 mm, 675 x 1800 mm, 675 x 2000 mm, 675 x 2200 mm, 675 x 2400 mm.
  • 750 x 1200 mm, 750 x 1400 mm, 750 x 1600 mm, 750 x 1800 mm, 750 x 2000 mm, 750 x 2200 mm, 750 x 2400 mm.
  • 800 x 1200 mm, 800 x 1400 mm, 800 x 1600 mm, 800 x 1800 mm, 800 x 2000 mm, 800 x 2200 mm, 800 x 2400 mm.
  • 900 x 1200 mm, 900 x 1400 mm, 900 x 1600 mm, 900 x 1800 mm, 900 x 2000 mm, 900 x 2200 mm), 900 x 2400 mm
  • 1000 x 1200 mm, 1000 x 1400 mm, 1000 x 1600 mm, 1000 x 1800 mm, 1000 x 2000 mm 1000 x 2200 mm), 1000 x 2400 mm
  • Fixed modules only: 900 x 2600 mm, 900 x 2800 mm, 1000 x 2600 mm, 1000 x 2800 mm or 1000 x 3000 mm.

Operation:

Rooflights can be fixed, or openable to provide ventilation or smoke venting. Opening rooflights are operated by a chain actuator, concealed behind the bottom profile.

Pane make-up:

- Standard Pane (Double Glazed):

8 mm toughened, 20 mm Argon filled Cavity, 3+3 mm c/w 2 x 0.38 mm PVB Laminated float glass.

- 'T' Pane (Double Glazed):

8 mm toughened, 16 mm Argon filled Cavity, 5+5 mm c/w 2 x 0.38 mm PVB Laminated float glass.

- Standard Pane (Triple Glazed):

8 mm toughened, 12 mm Argon filled Cavity, 8 mm Heat strengthened, 12 mm Argon filled Cavity, 3+3 mm c/w 2 x 0.38 mm PVB Laminated float glass.

- 'T' Pane (Triple Glazed):

8 mm toughened, 12 mm Argon filled Cavity, 4 mm Heat strengthened, 12 mm Argon filled Cavity, 5+5 mm c/w 2 x 0.38 mm PVB Laminated heat strengthened glass.

Light Transmittance (Tv) and Solar Factor (g) values:

Standard Pane (Double Glazed):

- Tv values:

  • LowE Coating: -77.
  • Sun 1 Coating: -49.
  • Sun 2 Coating: -19.

- g values:

  • LowE Coating -58.
  • Sun 1 Coating -27.
  • Sun 2 Coating -16.

'T' Pane (Double Glazed):

- Tv values:

  • LowE Coating -77.
  • Sun 1 Coating -48.
  • Sun 2 Coating -18.

- g values:

  • LowE Coating -58.
  • Sun 1 Coating -27.
  • Sun 2 Coating -16.

Standard Pane (Triple Glazed):

- Tv values:

  • LowE Coating -66.
  • Sun 1 Coating -43.
  • Sun 2 Coating -16.

- g values:

  • LowE Coating -45.
  • Sun 1 Coating -25.
  • Sun 2 Coating -13.

'T' Pane (Triple Glazed):

- Tv values:

  • LowE Coating -64.
  • Sun 1 Coating: -42.
  • Sun 2 Coating: -15.

- g values:

  • LowE Coating: -44.
  • Sun 1 Coating: -24.
  • Sun 2 Coating: -13.

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