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NBS Plus
The product information below is from the NBS Plus library of product clauses offered in NBS specification products. It has been created by NBS for Xtralite (Rooflights) Ltd. Each product clause is authored in NBS format and is intended for inclusion in project specifications. Please note that NBS product guidance is not a replacement for the manufacturer's literature and it is recommended that Xtralite (Rooflights) Ltd be consulted before specifying.

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Automatic Opening Vent (AOV)
Automatic opening vent (AOV) to reduce smoke and heat.
L10 Windows/ Rooflights/ Screens/ Louvres
 
Continuous Rooflights
Continuous polycarbonate rooflights which create thermoformed units, joined without the use of glazing bars.
L10 Windows/ Rooflights/ Screens/ Louvres
 
Penthouse Louvre
Louvre for natural ventilation.
L10 Windows/ Rooflights/ Screens/ Louvres
 
S-Line Rooflight
Range of glass rooflights.
L10 Windows/ Rooflights/ Screens/ Louvres
 
Walk-on Rooflight
Walk-on rooflight.
L10 Windows/ Rooflights/ Screens/ Louvres
 
X-1 Rooflight
High performance, un-plasticized polyvinyl chloride (PVC-U) framed rooflight with a U-value as low as 1 W/m²K.
L10 Windows/ Rooflights/ Screens/ Louvres
 
X-2 Rooflight
High performance, un-plasticized polyvinyl chloride (PVC-U) rooflight with a U-value as low as 1.6 W/m²K.
L10 Windows/ Rooflights/ Screens/ Louvres
 
X-3 Rooflight
Thermally broken, metal framed rooflight with U-value as low as 1.4 W/m²K.
L10 Windows/ Rooflights/ Screens/ Louvres
 
X-5 Rooflight
Uninsulated, metal framed rooflight.
L10 Windows/ Rooflights/ Screens/ Louvres
 
XAH Access Hatch
Single leaf roof access hatch.
L20 Doors/ shutters/ hatches
 
X-Glaze Rooflight
Glazing only units for direct fixing to builder's upstand.
L10 Windows/ Rooflights/ Screens/ Louvres
 
XLS Panelised Glazing
Interlocking, aluminium framed polycarbonate glazing panel system.
H10 Patent glazing
 
Xspan Barrel Vault
Self-supporting, glazed barrel vault.
L10 Windows/ Rooflights/ Screens/ Louvres
 
Xspan Mono Pitched Rooflight
Mono-pitched rooflight.
L10 Windows/ Rooflights/ Screens/ Louvres
 
Xspan Pitched Polygon
Self-supporting, multi-faceted rooflight.
L10 Windows/ Rooflights/ Screens/ Louvres
 
Xspan Pyramid
Self-supporting pyramid rooflight.
L10 Windows/ Rooflights/ Screens/ Louvres
 
Xspan Ridgelight
Self-supporting ridgelight, available hipped, vertical, or for attaching to a wall (wall abutment).
L10 Windows/ Rooflights/ Screens/ Louvres