ENERGY EFFICIENT GLAZING

Common characteristic of contemporary technologies in glazing is their ability to promote energy efficiency. With the use of a Low Emissivity glass, energy efficiency can be measured by a glazing’s U-Value and G-Value (Solar Heat Gain Coefficient).

Low-E (low emissivity) glass refers to a product where coating-metal layers dumped throughout the glass surface so that heat is reflected on the side of the glass from where it is originated. Therefore heating and cooling costs in spaces can be significantly reduced as well as costs for artificial lighting since coatings are at the same time able to transmit substantial amounts of daylight. Furthermore it provides a home protection from UV rays fading furniture.

U-Value is the indicator of the rate of transfer of heat which passes through the window. The lower the U-Value the greater will be its efficiency to resist heat flow. Our company can deliver combinations of glazing which can reach up to 1.0 [W/(m₂K)].

Solar heat gain/g-Value measures how much of solar heat is blocked. As the strength of the sun results in increased temperature in a space, a lower g- value represents less solar gain and thus makes it more suitable for warmer climates.

Further to coating used in double insulating glazing, energy efficiency can be enhanced by: the use of inner sealant that will fill the gaps between the side edges of the spacer bars that unite the glass panes offering premium elasticity and insulation; the use of a variety of spacer bars – a greater gap contributes to better acoustic performance; the insertion of an inner gas such as Argon where U-value can be significantly improved.