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Glazing Manifestation And Part M Building Regulations


The Glazing Manifestation regulations are designed to protect members of the public by ensuring that glass doors and screens are clearly defined. Our Range of Design Glass Films makes sure that your glass surfaces are fully compliant with these regulations.

Sometimes merely called the “Part M Manifestations”, these are a legal obligation under current building regulations. Design Glass Films don’t just enhance your interior design concept, but they also ensure that members of the public and visually impaired people, in particular, stay safe while on the premises.

If you are not aware of the content of the Glazing Manifestation Regulations and why they are important, you will find a quick guide to Part M Manifestations below.


An opaque or coloured film must be applied to glazed screens and glass doors to comply with Building Regulations Part N and Part M. The manifestation can be a major part of the interior design concept and not just installed where blinds are not fitted.

Design Considerations

1. People with visual impairment should be in no doubt as to the location of glass doors especially when they are within a glazed screen. The choice of different style of manifestation for the door and the glazed screen can help to differentiate between them.

2. Glass doors and glazed screens will satisfy Requirement M1 or M2 if:

3. They are clearly defined with manifestation on the glass at two levels, 850 to 1000mm and 1400 to 1600mm, contrasting visually with the background seen through the glass (both from inside and outside) in all lighting conditions.

4. Manifestation takes the form of a logo or sign at least 150mm high (repeated if on a glazed screen), or a decorative feature such as broken lines or continuous bands, at least 50mm high.

5. Corridors and passageways will satisfy the Requirement of M1 and M2 if:

6. Any glazed screens alongside a corridor are clearly defined with manifestation on the glass at two levels, 850mm to 1000mm and 1400mm to 1600mm, contrasting visually with the background seen through the glass in all lighting conditions (see illustrations above for details of manifestation).

Definitions – Contrast Visually

When used to indicate the visual perception of one element of the building, or fitting within the building, against another means that the difference in light reflectance value between the two surfaces is greater than 30 points.

Note: Where there appears to be a conflict between the guidance in Part M and Part N, Part M takes precedence.


With Glass Film Designs, great design and function don’t come at the cost of safety. Designed to be fully compliant with current building legislation, our stunning range of film designs is easy and cost-effective to apply and brings the WOW factor to plain glass surfaces.

At Think, our range of Design Glass Films makes staying on the right side of the regulations look easy while transforming the ordinary into the extraordinary. Give your space a fast and easy makeover. Our massive range of design glass films has your windows and the regulations covered.