Thermal Upgrade

Whilst every new door from GRP Composite Doors already conforms to the new thermal legislation, many homeowners are looking for the most thermally efficient door. The thermal upgrade will improve even further the U-value on the door by 0.4W/m2K.

Selecting the thermal option on the glass will upgrade the glass to have a warm edge spacer bar, low E glass and double glazed sealed units filled with argon gas.