Pilkington K Glass (A brand of Low-e glass)

pilkington k glass #3

The most common glass is Pilkington K Glass because of its high levels of light transfer and good energy efficiency. It is covered with a microscopic coating that absorbs heat and then radiates the colder heat trying to come from outside. It works similarly to if you placed a piece of kitchen foil behind a radiator, making sure that heat is bounced back into the room, rather than being lost through the wall cavity.