OBSCURE GLASS PATTERN OPTIONS
How energy-efficient glazing works
The windows in your home not only let in light to make rooms brighter, they also control the heat going in and out of the room. Coatings on glass such as Pilkington K Glass™ maximise the free heat from the sun going in as well as ensuring that as little heat as possible goes out.
Pilkington K Glass™ has a low-emissivity coating which is positioned on the surface of the inner pane that faces into the cavity of the insulating glass unit (IGU). Standard glass absorbs heat then radiates it again on the colder outside surface. The low-emissivity coating is a poor radiator of heat, so the heat absorbed by the coated glass does not travel across the air gap to the outer pane and the cooler outside air. Instead the coating reflects the heat back into the room.
This means that windows incorporating Pilkington K Glass™ allow through the heat from the sun and help to retain this heat inside, making it easier and more cost effective for you to keep buildings warm.
Low iron glass is made using carefully selected raw materials with naturally low iron content. The melting process is tightly controlled to ensure that the product properties remain consistent, making Pilkington Optiwhite™ the leading low iron glass on the market.
Pilkington Toughened Glass is manufactured by subjecting the final glass size to a heating and cooling treatment. A balance of high compressive stresses at the surface and tensile stresses in the centre of the glass increases its strength. The result is a glass that is five times stronger than ordinary glass of the same thickness. The high compressive surface stresses give the glass its increased resistance to mechanical and thermal stresses. It can, however, break under extreme loads or by severe impact. Toughened glass shatters into small, blunt-edged fragments when broken, which reduces the risk of personal injury.
Laminated glass is a type of safety glass that holds its structure together when shattered. In the event of breaking, it is held in place by an interlayer, typically of polyvinyl butyral (PVB), between its two or more layers of glass. The interlayer keeps the layers of glass bonded even when broken, and its high strength prevents the glass from breaking into large sharp pieces.