- Fully welded units to form a single unitized structure.
- Multi-chambered profiles add to the weld strength and improve thermal performance.
- Pre-punched nailing fin for fast, efficient installation for new construction is standard on all models, but can be removed to add stucco flanges and brickmoulds.
- Standard 5/8" air sealed units for thermal performance.
- Sealed units feature super-spacer for a cleaner look and thermal performance.
- Also available, LoE2® and argon gas for superior thermal performance.
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