blade rooflight u-values
Double-A centre pane Ug-value is 1.0 w/m2k
Triple-K centre pane Ug-value is 0.4 w/m2k
Double-A glazing and frame combined Uw-value from 1.2 w/m2k
Triple-K glazing and frame combined Uw-value from 0.6 w/m2k
Double-A glazing, frame and kerb combined Ud-value from 1.1 w/m2k
Triple-K glazing, frame and kerb combined Ud-value from 0.4 w/m2k
All Blade rooflights fully comply with building regulations minimum heat loss requirements of 1.6 w/m2k for domestic installations and from 1.8 w/m2k for commercial installations. Double-A Blades are double glazed with argon gas and Triple-K Blades are triple glazed with Krypton gas, both with soft coat low-e coatings and warm edge spacer bars.