Argon gas is an extremely stable chemical element, odourless and tasteless.  It is part of the inert gases.

Argon gas, at the same temperature, has a thermal conductivity or heat transmission rate compared with air that is much lower.

This is why NURITH uses Argon Gas on its windows from the "Domus" and "Pr1ma" ranges.

The THERMAL INSULATION of a window depends on the material of the frame, the glass and the seals.  The parameter used to indicate the insulating capacity is the U value [W/m² K]. The lower the value, the better thermal insulation is.

The ACOUSTIC INSULATION of a window depends on the material of the frame, the glass and the impermeability of the escape routes. The better a winow closes, the better acoustic insulation is.

Warm edge conduit - traditional alluminium conduit, difference in linear thermal transmittance

The Uw value of the window may improve with use of double glazing assembled with a "Warm Edge" conduit (value  Ψ [W/mK] = 0,041) rather than assembled with an "Alluminium" conduit (value Ψ [W/mK] = 0,067).

For example:

A window with 2 openings

mm. L. 1200 x H.1200 with double glazing 4be + 18 GA + 4:

Uw = 1,30 [W/m² K] if fitted with a "WARM-EDGE" conduit

Uw = 1,40 [W/m² K] if fitted with an "ALLUMINIUM" conduit

As indicated by the norm UNI 7697, listing the safety criteria in glass applications, the risks windows and balcony doors are subject to are the following:

• Risk of damage to people or things when breaking of the glass may injure people, animals or create damage to things;
• Risk of falling, when breaking of the glass may fall to the ground .

For panes of glass at less than 100cm from the walking area, as far as safety is concerned safety glass is obligatory or, alternatively, stratified safety glass while with the risk of falling to the ground, the glass should be stratified safety glass.