The short answer
Picture windows provide fixed glass and no ventilation. Pairing them with casement, awning, or hung units can add operation, but the complete combination must be compared for structure, mullions, glass, safety, ratings, water management, access, and finish.
- Choose which units need to operate.
- Check view, ventilation, screen, and cleaning goals.
- Compare the complete mulled configuration and installation scope.
Sources
Sources
- Window Types and Technologies — U.S. Department of Energy
- Window Installation — U.S. Department of Energy
- Window Energy Performance Ratings — National Fenestration Rating Council
- Safety Standard for Architectural Glazing Materials — U.S. Consumer Product Safety Commission