- Project plans
- Project activities
- Legislation and standards
- Industry context
Last edited 02 Mar 2018
Glass mullion system
A glass mullion system is a type of glazing system that can be used to construct vertical glass curtain walls, canopies, skylights, and so on, allowing large areas of glazing to be created whilst maintaining a high level of transparency.
It is formed by sheets of tempered glass held in position by clamps and joined to the glazing by a structural silicone sealant or by metal patch plates. The glass mullions are typically suspended from the head structure above and can span distances of more than 20 m or more, transferring wind, snow and self-weight loading back to the primary structure.
 Find out more
 Related articles on Designing Buildings Wiki
Featured articles and news
BSRIA report suggest the European market will double to 415 million Euros by 2023.
Do you understand the different types of stone and which ones you should use where?
Why a wellbeing strategy is vital for property managers.
An ECA briefing for members about the commercial implications of leaving the EU.
A crucial moment on any project - and fraught with danger.
The performance gap from a Northern Ireland perspective.
Book review: Buildings of protestant nonconformity.
Design and testing for health and wellbeing - free download from BRE.
Retention in construction contracts.
Campaign for the reform of cash retentions.
The key points for the construction industry and BSRIA's response.