THE 2-MINUTE RULE FOR A-RATED WINDOWS KIRKBY LONSDALE

A window's ranking is set by a system which takes under consideration the total solar warmth transmittance, the amount of the Solar's heat which might pass through the glass (typically known as g-value); the U-price of The complete window (body and glass blended), how well the window keeps the heat in your home; as well as the air infiltration