Thermal Insulation and Window Energy Ratings. Heat loss is normally measured by the thermal transmittance or U-value, usually expressed in W/m 2 K. In its most basic terms, the lower the U-value, the greater the thermal insulation, however, the amount of free heat energy from the sun, the solar gain or g-value can also have a big impact.

Pilkington energiKare™ is the name given to our range of double and triple glazing used to improve the thermal efficiency of homes. It reduces the amount of heat lost through your windows and can also allow more heat energy from the sun in through the glass.

Pilkington K Glass™ is the UK’s leading thermal glass brand. Established for over 30 years and easily stocked, processed and installed, it has become the trusted solution for meeting Building Regulations concerning energy efficiency.

High performance triple glazed units optimise the balance between U-value, the thermal performance of the glass, and g-value, the proportion of solar energy through the glass to retain the warmth within the home; Where there are suitable framing systems, it can be used in existing homes as a glass-only upgrade

Pilkington K Glass™ S is our latest high performance, low-emissivity soft coated product which offers excellent thermal insulation when incorporated within an Insulating Glass Unit (IGU). It has a highly neutral appearance with optimal solar heat gain, thermal insulation and light transmission to provide the highest Window Energy Rating (WER ...

In its most basic terms, the lower the U value, the greater the thermal insulation. U values for insulating glass units are determined in accordance with BS EN 673. An insulating glass unit comprising 4 mm Pilkington Optifloat™ Clear outer pane, 16 mm argon gas-filled cavity and 4 mm Pilkington K Glass™ inner pane has a centre pane U value of 1.5 W/m 2 K.

The Pilkington Pyrostop ® Range is a clear, laminated fully insulating fire-protection and impact-resistant glass. Offering the highest levels of fire protection (integrity and insulation), maximising the available levels of natural light and visibility.

Pilkington Optitherm™ S1 Plus is an off-line coated, single stock product, offering superior thermal insulation performance with Ug-value of 1.0.

Thermal Insulation. Improves the energy efficiency of domestic or commercial buildings whilst enabling the extensive use of glass and the benefit of passive solar gain. Fire Protection. Provides passive protection from the effects of fire for up to 180 minutes allowing maximum use of natural light and enabling all areas of a building to be ...

Pilkington energiKare™ Designed to meet the growing demand from homeowners to reduce energy loss through windows