Sign up: 
Sign up:
Sign up:
NARM, the National Association of Rooflight Manufacturers, has published an updated version of its Quickguide 08. It is entitled ‘Understanding CWCT Classifications of Rooflight Types’.
The CWCT (Centre for Window & Cladding Technology) tests for non-fragility comprise of soft body and hard body impact tests as well as a load retention test.
They are intended to identify what glass size and type of rooflight can be deemed safe for anyone that might be working on or adjacent to the glass from outside as well as protect anyone that may be below the glass.
There are four classifications assigned by the CWCT standards, these are classes 0, 1, 2 & 3. Simple descriptions of the classifications and applications relevant to them are provided in the document.
Stuart Middle, NARM’s Technical Committee Chairman, comments: “Recent developments in glass rooflight design, including the rise in popularity of so-called ‘walk-on’ rooflights, have led to a degree of confusion around their specification.
“This document has been produced to provide a quick overview to help specifiers avoid potentially dangerous mistakes.”
NARM Quickguide 08 is available from the NARM website. This also hosts a wide range of other technical documents covering different aspects of rooflight specification.
Download a free copy of the document here
For further information, visit www.narm.org.uk
For further information, please contact NARM using the contact details on our website, where you will be directed to the appropriate person.
Last year saw the return of Keylite Roof Windows (Keylite)’s ‘Kick it with Keylite’ initiative, which challenged the UK construction industry to ‘keep it up’ for Mates in Mind.
Posted in Articles, Building Industry Events, Building Industry News, Building Products & Structures, Charity work, Glass, Glazing, Posts, Retrofit & Renovation, Roofs, Windows
SSQ’s Environmental Product Declaration was found to be in accordance with the requirements of EN 15804:2012+A1:2013 and the BRE Global Scheme Document SD207.
Posted in Articles, Building Industry News, Building Products & Structures, Building Regulations & Accreditations, Concrete, Cement, Admixtures, Publications, Restoration & Refurbishment, Retrofit & Renovation, Roofs, Sustainability & Energy Efficiency, Walls
Abloy UK announce the appointment of Johnathon Dale as the new Manager of its Digital Access Solutions Academy.
Posted in Access Control & Door Entry Systems, Architectural Ironmongery, Articles, Building Industry Events, Building Industry News, Building Products & Structures, Building Services, Doors, Facility Management & Building Services, Information Technology, Recruitment, Security and Fire Protection, Seminars, Training
Kestrel is investing in staff development to ensure the team provide the best possible service for customers.
Posted in Articles, Building Industry Events, Building Industry News, Building Products & Structures, Cladding, Drainage, Guttering, Soffits & Fascias, Fascias, Recruitment, Roofs, Training, Walls