Unsupported browser

For a better experience please update your browser to its latest version.

Your browser appears to have cookies disabled. For the best experience of this website, please enable cookies in your browser

We'll assume we have your consent to use cookies, for example so you won't need to log in each time you visit our site.
Learn more


  • Comment

Nickel sulphide inclusions and consequent shattering of glass have reduced as a source of problems, due to such factors as changes in sand for manufacture. There is some use of heat soaking, though this is a costly process. A Euro-standard on heat soaking is due out soon.

Risk assessment may be the first step for overhead glazing. For example, the forthcoming cwct document on sloped glazing will have separate recommendations for glass below 5m high, 5-13m and over 13m.

Other causes of overhead glazing failure can include:

- inaccurate cutting of glass or edge-damage to glass in transit and on site, all leading to local stress build-ups

- cad drawing especially can help in creating complex geometries with small tolerances that are difficult to build

- triangular glazing panels may slip under their own weight down into the 'V' shape of the framing, jamming against setting blocks, negating the freedom of movement that setting blocks in rectangular openings provides.

  • Comment

Have your say

You must sign in to make a comment

Please remember that the submission of any material is governed by our Terms and Conditions and by submitting material you confirm your agreement to these Terms and Conditions.

Links may be included in your comments but HTML is not permitted.

Related Jobs