Pitched Polygon.

NBS

NBS Building is the most widely used specification system suitable for a wide variety of construction projects, available in three levels of service depending upon projects undertaken.

NBS brings together the specifier and the NBS library of technical product information which is managed and updated by a team of RIBA specialists. Information is standardised and therefore recognised throughout the industry facilitating an understandable and easier specification process.

Xtralite are members of the NBS specification system assisting specifiers with Rooflight specification across the two main categories of rooflight, structural and standard.

Structural products (Xspan, XLS) usually come under the NBS heading of H 10 PATENT GLAZING, part 115 Patent Glazing,(H 10/115 ).

Standard products are under the heading of L 10 WINDOWS/ ROOFLIGHTS/SCREENS/LOUVRES, part 460 Rooflights (L 10/460 ).

For the full range of NBS clauses subscribers can log on to www.thenbs.com/ to assist with rooflight specification. Under the CAD drawings section of this site there is an accompanying specification guide with all the CAD PDFs which detail how individual rooflight systems can be specified.