If the window does not meet any one of the specs based on location and size ordinary window glass is okay.
Tempered glass location requirements above floor.
Other windows require safety glazing when the glass is larger than 9 square feet the bottom is less than 18 above the floor the top of the glass is more than 36 above the floor and there is a walking surfaces within 36 horizontally of the glass unless protected.
Meets all of the following conditions shall be considered to be a hazardous location.
The international codes i codes are the widely accepted comprehensive set of model codes used in the us and abroad to help ensure the engineering of safe sustainable affordable and resilient structures.
So the glass must be larger than 9 square feet and within 36 inches of a walking area plus the bottom of the window has to be below 18 inches above the floor and top more than 36 inches above the floor.
And the exposed surface of the glass is less than 60.
The top of the glass is less than 36 inches above the floor.
An illustrated guide to the building mechanical and electrical codes by redwood kardon et al conditions requiring a window to have tempered glass include a window lower than 18 inches from the ground larger than 9 square feet in area with a top higher than 3.
Where to install windows with tempered glass is not just dictated by the height of the window.
Malcolm it is possible to make a a glass floor which is 81 a little under your 2 2 cm by using one layer of 3 8 thick tempered glass the 060 lamination layer and then another layer of 3 8 tempered glass.
It is also possible to use 2 different thicknesses of glass in a flooring system.
Tempered glass must be used for all glass adjacent to stairs ramps and landings if the glass is located within 36 inches of a walking surface.
The bottom edge of the glazing is less than 18 inches 457 mm above the floor 3.
Additionally it is required to temper any glass located within 24 of a door if the bottom edge is less than five feet above the floor.
The top edge of the glazing is more than 36 inches 914 mm above the floor.
The size of the glass exceeds 9 square feet.
The exposed area of an individual pane is larger than 9 square feet 0 836 m2 2.
When is a window required to be made from tempered glass.
The international code council icc is a non profit organization dedicated to developing model codes and standards used in the design build and compliance process.
Glass located higher than 60 above a walking surface is exempted.
According to the national glass association there are 4 criteria that require safety glass.