LoE 3 is an energy efficiency coating that is applied to the glass of VELUX skylights to reduce UV rays. The "3" means that it is coated with this material three times.
What is a LoE 3 glass in a VELUX skylight?
1 min. readlast update: 12.12.2025
LoE 3 is an energy efficiency coating that is applied to the glass of VELUX skylights to reduce UV rays. The "3" means that it is coated with this material three times.