- Project plans
- Project activities
- Legislation and standards
- Industry context
Last edited 04 Dec 2017
Manifestation is a treatment that can be applied to glass windows, doors, partitions and any other large expanses of clear glass, in order to make the glass visible, preventing injury through collisions. It can also help enhance privacy and can be decorative.
Manifestation is typically created from a frosted film applied at specified locations on clear glass to make it more easy to detect.
|Transparent glazing with which people are likely to come into contact while moving around in or about the building, shall incorporate features which make it apparent.|
Approved document K, Protection from falling, collision and impact, suggests that this requirement will be satisfied by including permanent means of indicating the presence of large uninterrupted areas of transparent glazing, and Section 7 of the approved document provides further details, requiring that either:
|They are clearly defined with glass manifestation on the glass at two levels; between 850-1,000 mm and 1,400-1,600 mm above the floor, contrasting visually with the background seen through the glass (both inside and out) in all lighting conditions.
Manifestation takes the form of logo or sign at least 150 mm high (repeated if on a glazed screen), or a decorative feature such as broken lines or continuous bands, at least 50 mm high.
The most simple manifestation is two rows of 50-75 mm white or frosted dots, however, the regulations do not dictate the appearance of the manifestation. Standard designs of dots, squares and simple bands are common, but large panels in etched or printed film with cut-out clear spaces, or branded manifestation with logos or other designs are also acceptable.
Alternative solutions such as mullions, transoms, door frames or large pull handles / push plates may also be acceptable.
In addition, doors should be apparent from the side, if they can be held open, and where glazed doors are beside a glazed screen, they should be marked with a high contrast strip along the top and at both sides.
The approved document to Part M of the Building Regulations - access to and use of buildings - states that people with visual impairment should be in no doubt as to the location of glass doors and screens, and steps should be taken to avoid people being harmed by walking into them. This requirement is satisfied if they comply with approved document K, section 7.
 Related articles on Designing Buildings Wiki
Featured articles and news
Whole-life costs consider all costs associated with the life of a building, from inception to disposal. Find out more here.
Reports emerge of injuries caused by Apple employees colliding with the campus' glazed walls.
The winners of NIC's ideas competition on transforming the Cambridge to Oxford arc discuss their concept.
Create new habitats and improve air quality and wellbeing.
New report provides 12 key actions which could close the structural talent gap in the construction industry.
These can be used to find out whether a proposed development is likely to be approved. Read more here.
Studying a built environment degree? Check out our helpful student resources section.
New BRE research paper explores how blockchain technology can benefit the built environment industry.
Timber is a natural carbon sink, but it must not end up in landfill at the end of its useful life.
BSRIA has collaborated with the Department of Health on research into air permeability in isolation rooms.