WeatherMaster™ Plus Bi-Fold Door
WeatherMaster Plus™ BI-FOLD DOOR SYSTEM
Sunspace continues to lead the way with innovative solutions that seamlessly integrate wall systems, ventilation, insect protection, passage doors, bi-fold doors, and customizable options for both seasonal and year-round use. Introducing the WeatherMaster™ Plus Bi-Fold System – the perfect solution to enhance the comfort and flexibility of your outdoor living space.
Drawing inspiration from sleek European design, this system features a bottom-running, above-ground mechanism with various threshold options. Custom hardware components maximize load capacity, allowing for expansive doors with slim profiles and beautiful sightlines.
Designed for easy fabrication, the system supports doors that open inward or outward, using the same profiles. Matching sash and outer frame depths ensure excellent thermal performance, while the inline design and precision-engineered hardware create a high-performance, visually striking solution. The WeatherMaster™ Plus system comes standard with WeatherMaster™ Vertical-4-Track windows and is available with either single-glazed tempered glass or fully thermal insulating glass options.


TECHNICAL INFO
- Maximum Panel Weight: Supports up to 120 kg per panel
- Dimensions: Maximum height of 3000 mm and width of 1200 mm per panel
- Threshold Options: Multiple customizable threshold choices available
- Adjustable Jamb: Designed for enhanced flexibility
- Smooth Operation: Features an ultra-smooth bottom-running mechanism
- Sleek Design: Slim sightlines for a modern aesthetic
- Finish Options: Available in dual-color and custom finishes
- Intermediate Doors: Concealed shoot bolt locking with single-point handle; optional key-locking
- Exterior Access: Configurable for exterior access in any setup
- Included Accessories: Comes with color-matched handles and magnetic door holders
- Configurations: Supports up to 7 panels on both the left and right sides with a bottom-rolling system
- Opening Flexibility: Supports both inward and outward opening with identical profiles
- Thermal Efficiency: 30 mm polyamide thermal break for excellent insulation (U-value: 1.4 W/(m²·K))
- Inline System: Consistent sash and outer frame depth for a seamless, unified design
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Features & Benefits

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