Is all safety glass marked?

According to section 7 of BS 6262-4:2005, the safety glass needs to be permanently marked so that it is clearly visible after installation. By marking glass, consumers and Building Control Officers have confidence that it conforms to standards and regulatory requirements.

Where is safety glass needed?





Safety glass should be fitted in all doors and other windows or glazed areas that are lower than 800mm from the floor level. Glass panels less than 250mm wide can be fitted with 6mm glass or laminated glass instead of toughened glass.

Where is laminated glass required?

Laminated glass is commonly used in the following areas of modern buildings: Glazed windows and doors. Rooflights and glass roofs. Glass floors.

Does toughened glass have to have a Kitemark?

Toughened glass is required to be marked with BS6206a, this can take the form of the circulaur BS Kitemark or a simple line. It is also possible that the glass is laminated, which will also satisfy the requirement for safety glass, if so it is unlikley to be marked.

How can I tell if I have safety glass?

Tempered glass must have a small label etched in a corner of the glass, officially known as the “glass monogram,” but called a “bug” in the construction trades. It is required to identify the glass as tempered, have the manufacturer name, and the ANSI and CPSC standards under which it was manufactured.

How can you tell if glass is toughened or regular?





Check the Glass Edges



Compared to standard annealed glass, which typically has edges that are rougher to touch, tempered glass is fairly smooth, if you run your hand along the edge of a sheet. This is one of the most common distinguishing features between annealed glass and tempered glass.

At what height are window restrictors required?

To be suitable for means of escape, the top of the guarding should be between 800mm and 1100mm above the floor level and the minimum dimension, 450mm, and area of the opening, 0.3m2, should be measured from the top of the guarding up to the top of the opening.

At what size does glass need to be toughened?

Glass Size Guide Minimum & maximum sizes

Oakland Sealed Units Auto Line Aluminium/Swiss or Super Spacer Min
4mm Toughened – all glass types 200 x 350mm*
6mm Annealed – all glass types 200 x 350mm*
6mm Toughened – all glass types 200 x 350mm*
Laminated – all glass types 200 x 350mm*

Does glass above a door need to be tempered?

Any glass that is within 24 inches of a doorway must be made of tempered glass if the bottom edge of the glass is 60 inches or less above the walking surface. The rule does not apply if the glass is decorative of if the glass opening is smaller than 3 inches.

What is the Kitemark for toughened glass?



How do I know if it’s safety glass? British Standard 6206 requires that each piece of safety glazing used within ‘critical locations’ should be marked with a Kitemark with British Standard number ‘BS 6206‘.

Should all windows have a Kitemark?

The BSI Kitemark scheme for Window Energy Rating (WER) is based on the approved document L1B of the Building Regulations which comes into force on 1st October 2010. This stipulates that all replacement windows must have: A Window Energy Rating (WER) of at least band C or.

What does the Kitemark mean on glass?

The Kitemark symbol of quality was first conceived in 1903 to identify glazing solutions that were at the pinnacle of safety and reliability. Today, glass kite marks remain as one of the oldest product quality marks in the world still in use.

Does glass have to be kite marked?



Most glass used in modern construction should carry a Kite Mark, but in its absence always assume that the glass is laminate. A quick note about Kitemarks – According to the NHBC: All IGUs (Insulated Glass Units) are now required to have third party certification (e.g. Kitemarking).

What does a Kitemark look like?

The Kitemark was originally conceived in 1903 as a symbol to identify products manufactured to meet British Standards’ specifications. “Kitemark” came from the kite shape of the graphic device which was drawn up – an uppercase B (for British) on its back, over an S (for standard), enclosed by a V (for verification).

What is classed as safety glass?

Safety glass is defined as glass which must have passed an impact test (currently BS 6206: 1981 – Specification for impact performance requirements for flat safety glass and safety plastics for use in buildings) and either must not break or must break safely.

Do windows have to be safety glass?

Glass that is situated at a low level (or lowlite), The bathroom, probably has the biggest impact as you shower, mirror and windows are all required to be installed using safety glass.

What thickness is safety glass?



The most common form of safety glass (and the lowest cost) is 4mm toughened glass. This glass is used for almost all residential safety glazing and 4mm toughened comes in a large range of obscure patterns as well as the energy saving glass – Pilkington K glass.

How do you specify glass?

There are multiple measurements to look for when you are selecting glass to meet performance goals:

  1. U-Factor measures heat gain or loss through glass due to difference between indoor and outdoor temperatures. …
  2. Solar Heat Gain Coefficient (SHGC) measures how well a product blocks heat caused by sunlight.

What are standard glass sizes?

Clear Float Glass

Glass Name Maximum Size Available Glass Thickness Range
CLEAR FLOAT 6000 X 3210 4, 5, 6, 8, 10, 12, 15 & 19mm
LOW IRON – OPTIWHITE / OPTICLEAR 6000 X 3210 4, 6, 8, 10, 12, 15 & 19mm
K WHITE TOUGHENED 3210 X 2550 4mm
DIAMANT TOUGHENED 3210 X 2400 4 mm

How thick should glass walls be?

Glass walls and partitions are often 3/8” or ½” in thickness, in order to prevent damage from the weather and other impacts that the window will endure.