Don't sacrifice strength at these critical barriers to your home. Signature windows use the most technologically advanced materials for maximized strength against harsh weather, intrusion, and health hazards.

Strength and Security Features
envirotherm - EnviroTherm injection foam filled for additional insulation and strength.
- Multi-chamber uPVC sash and frame extrusions create added insulation.
- Heavy duty sash stops and vent latches for added beauty and safety while still allowing ventilation.
Fusion weld - Fusion welded master frame and sashes provide maximum strength at all corners and seal chambers adding to Signature's insulation value.
- True sloped sill (not the snap-in type) eliminates weep holes that can clog.
Inter lock - Full interlock at the meeting rail provides added strength, security, and performance.
- Endurex composite, non-metallic reinforcement at the meeting rails adds strength, limits conduction and convection, and maximizes energy efficiency.
- Locking balance shoe allows the sash to tilt while remaining secure in the frame.
micro ban - MicroShield antimicrobial triple weather stripping and bulb seals provide maximum efficiency and resistance to air and water infiltration, mold, dust, fungi, pollen, and harmful bacteria.
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