PERFORMANCE LAB
Compare the systems — on documented figures.
Every figure comes from the documented specification — pick systems and a metric, and see the difference.
PICK SYSTEMS
METRIC
Thermal Uw
W/m²K · lower is better
SETI Casement 60
1.30 W/m²K
Frankfort Casement 70
1.18 W/m²KBest
Values come from each system's documented specification; the final window also depends on glazing and installation — the make-up is reviewed with the technical office.