How can I tell if my double glazing is toughened glass?

Toughened Glass will be stamped in one corner, which is in accordance to building regulations, and we cannot stop this stamp from being put on. However, if the glass is being used for furniture purposes a smaller 'furniture stamp' can be requested.
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How can you tell if glass is toughened UK?To identify whether your property has laminated or toughened glass, you will need to look for a printed kitemark code in the corners of the glass:

  1. BS EN 14449 – laminated glass.
  2. BS EN 12150 – toughened glass.

How do I know if I have toughened glass?

View the Glass Through Polarized Lenses
If you try to view tempered glass in sunlight with a polarized pair of sunglasses, you will see dark, shady spots or lines stretching across its surface–a prime indicator that the glass is toughened. These lines were formed by the machine rollers during the tempering process.

Do double-glazed units have to be toughened?

All tempered (i.e. toughened) or laminated glass must (with minor exceptions) be marked in accordance with BS6206. Homeowners are becoming increasingly aware about safety in their homes and visible etched markings on all panes is the only evidence of complying with British Standards BS6206.

Does toughened glass have to be marked?

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.Oct 15, 2007

Related Questions

How can I tell if my double glazing is toughened glass?

How do you tell if a window has toughened glass? Once the glass has been fitted in a window, then toughened glass and normal float glass are indistinguishable. If you look for a quality mark, then that might give an indication of it the glass is toughened.

How can you tell if glass is toughened or regular?

Examine Its Edges
Normally, tempered glass has completely smooth edges due to the extra processing it goes through, while other types of glass usually have scuffed or ridged edges. If the edges of the glass are exposed, run your fingers along them.

Can laminated glass be toughened?

Toughened laminated glass is four to five times stronger than standard float glass of the same thickness. The perfect solution for walk-on-glass flooring, glass stair treads or glass balustrades.

Are double glazed windows toughened glass?

The two most popular glass types used for double glazed windows are annealed and toughened glass.

Do windows have to be toughened glass?

Any pane of glass partly or wholly less than 800mm from floor level should be safety glass (generally toughened glass is specified over laminated glass due to cost). So in the diagram above, windows A, C, D, E and F would all need to be toughened glass, while panes B and G could be standard annealed.

How can I tell if glass is toughened?

Tempered glass has smooth edges
A tempered glass needs to be sandblasted. So, one good way is to look thoroughly at the edges of the glass. Tempered sheets have smooth and even edges because of the extra processing it goes through. On the other hand, if the glass is not tempered, the edges feel rough to touch.

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