GR70 Fiberglass Reinforced Polyurethane Casement Doors

The GR70 casement door features an advanced 4-chamber FRPU thermal break profile, offering superior structural strength and exceptional insulation against heat and cold. The multi-layer insulating glass, filled with argon gas and coated with double Low-E, delivers an industry-leading U-value down to 1.0—drastically cutting your annual heating and cooling costs. Premium German ROTO hardware and a full EPDM sealing system provide smooth, whisper-quiet operation with zero drafts and outstanding weather resistance. The eco-friendly waterborne finish is UV-resistant, safe, and guarantees long-lasting color. For luxury homes, hotels, and high-end commercial projects, the GR70 ensures ultimate quietness, steady indoor comfort, and significantly lower energy bills—exactly what you expect from a top-tier door.