The 855/875 series are Windspec’s thermally broken stick-build window system. Utilizing our glass-reinforced thermal break, these systems can meet strict thermal requirements. This system ranges from 4-1/4″ – 6-1/2″depths. Custom depths available upon request.
Fixed Windows
855/875
KEY POINTS
- High performance thermal break
- Optional rain screen drainage
- 3/4″ profile
- Accomodates 1″ double or 1-3/4″ triple glazing units
- Mullion depth ranging from 4-1/4″ – 6-1/2″
- Compatible with a variety of Windspec operable windows
- Avaialable in anodized and painted finishes

