Guardian develops glass to meet Part L

Guardian Glass has introduced Guardian ClimaGuard Neutral 1.0, which has been developed specifically to meet the new UK Building Regulations Part L for windows in new and existing residential builds.

Featuring a thermal insulating coated glass for double-glazed windows that has a Ug-value of 1.0 W/m2K, ClimaGuard Neutral 1.0 offers improved aesthetics with a more neutral colour and a lower reflection compared to other 1.0 U-value glass products for residential windows.

ClimaGuard Neutral 1.0 is a single product solution which can be used in its annealed form or can be heat treated for use in safety applications. This means glass processors do not need to stock two different glass products (a heat treatable version and an annealed version) to meet the demand from window makers.

Changes to the UK Building Regulations will come into force on 15 June 2022. One of the five new Approved Documents, Part L (‘Conservation of Fuel and Power’), introduces new minimum efficiency standards for both new and replacement thermal elements, windows and doors.

ClimaGuard Neutral 1.0 achieves 74% light transmission for a double IGU 4-16-4 panel (coating on surface #3, 90% argon fill), 14% light reflection and a solar factor of 52%. The product is available on Guardian ExtraClear float glass as standard, on Guardian ExtraClear laminated glass and on Guardian UltraClear low-iron float glass.