- Flat Roof Window is equipped with a double glazed unit 4H-14-33.4T which has laminated internal glass and is Anti-Burglary P4A Class.
- The external dome is made of durable polycarbonate.
- Special coatings on the inner and outer of the dome surface protect against UV radiation.
- Heat transmittance co-efficient for the whole window is U=1.2 W/m2K. (glass U-Value 1.1W/m²K). Acoustic rating 35Db (-1.-3).
- All D_C and D_F Secure window achieves anti-burglary RC2 class as per EN1627.
- Can be used on roofs with pitches between 0 – 15°.