Structure Information >
- Solid 2-3 glass insulating glass window or a 1-glass window
- Ventilation hatch or direct opening window.
- Quality glazing features, (e.g., U-value, solar protection, security, soundproofing, bullet-resistance, intrusion protection, child safety, easy washing).
- Light Aperture frame edge 45mm. Exterior wood or aluminium frame.
- Only 2 washable surfaces.
- Fixed windows can be equipped with the same karmin ventilation opening feature, which is only 175mm wide so the light aperture is big.
- An opening window is an inexpensive alternative to the ventilation window.