X-Two - Glass IGL

Fire performance (to BS 476, Part 7):

• Polycarbonate: To BS 476, Part 7: Class 1, AA designation (national classification), or Broof (t4) European classification for spread of flame.

• Glass: AA designation (national classification), or Broof (t4) European classification for spread of flame.

Size:

Size range includes:

- Rectangular:

• 600 x 900 mm.

• 600 x 1200 mm.

• 600 x 1500 mm.

• 600 x 1800 mm.

• 600 x 2400 mm.

• 900 x 1200 mm.

• 900 x 1350 mm.

• 900 x 1500 mm.

• 900 x 1800 mm.

• 900 x 2400 mm.

• 1000 x 1500 mm.

• 1000 x 2000 mm.

• 1200 x 1500 mm.

• 1200 x 1800 mm.

• 1200 x 2400 mm.

• 1500 x 2400 mm.

- Square:

• 600 x 600 mm.

• 750 x 750 mm.

• 900 x 900 mm.

• 1000 x 1000 mm.

• 1050 x 1050 mm.

• 1200 x 1200 mm.

• 1350 x 1350 mm.

• 1500 x 1500 mm.

• 1800 x 1800 mm.

Intermediate sizes may be available. Consult manufacturer for details.

Upstand/ kerb – roof attachment:

Xtralite has developed unique mounting systems to aid attachment and make the installation process easier.

• To suit flat board insulation – Code A: Add vertical risers to suit the depth of insulation specified - as standard supplied with a 120 mm vertical attachment to ensure a good interface between board insulation and the rooflight kerb.

• To suit cut to falls insulation – Code B: Add vertical risers to suit the maximum depth of the tapered insulation scheme.

• To suit a cold roof – Code C: Suitable for a splayed or vertical kerb, 160 mm high.

• To suit a built up kerb – Code D: For fixing direct to an existing or new builders kerb.

• To suit a new timber ground – Code E: 160 mm high, for fixing to the of a newly constructed timber ground equal to or greater than the depth of the new insulation.

• To sleeve over an existing curb or upstand – Code F: Vertical risers are added to ensure the ventilation modules and or glazing do not foul the existing protrusions.

• To suit an existing timber ground – Code G: Variable height using PVC-U plugins for fixing to an existing builders kerb or plinth.

Glazing details:

- Material:

Double glazed insulating glass units offer a low U-value alternative to polycarbonate: selection of high specification glass can reduce solar gain and rain noise while retaining non-fragile status. Consult manufacturer for recommendations.

- Colour:

Available in four colours:

• Bronze: Reduces light transmission and solar gain.

• Clear: Offers high light transmission and allows full vision of views or objects.

• Diffused: Offers high light transmission and prevents vision of views and objects.

• Opal: Prevents vision of views and objects.

Security:

Xtralite offers a range of security options to prevent unauthorized access, depending on the level of security required.

• Intruder grid (IG): Located between the rooflight kerb attachment and roof to reduce the risk of unwelcome intruders. In the case of access hatches, grids can be manufactured hinged and lockable.

• Tamper resistant fixings (SS): Screws with inaccessible thread assemblies.

Ventilation:

Xtralite rooflights can incorporate a range of ventilation and access systems.

• Unventilated (00): Fixed rooflight, ideal for situations where ventilation is not required.

• Hit and miss vent (01): Provides minimal background ventilation.

• Rota vent (02): The unique rotary action vent controller offers variable ventilation, distinctive internal appearance and smooth, silent operation; prevents 'in-blown' roof debris and water ingress.

Consult manufacturer for details and recommendations.