Description
Product Features:
- 3-in-1 Functionality: Combines in-floor heating, uncoupling, and waterproofing into a single advanced membrane system for efficient radiant heat installation and long-term floor protection.
- Convenient Coverage & Thickness: Each FLEXBONE HEAT membrane sheet covers 8.4 sq. ft. (3 ft 3 in x 2 ft 7 in) and features a 1/4-inch XL uncoupling thickness for perfect height transition with hardwood, vinyl, and raised tile flooring.
- Advanced German Engineering: Designed by ARDEX, a trusted name in professional flooring systems, the FLEXBONE HEAT membrane delivers precision, durability, and ease of installation for both residential and commercial applications.
- Efficient Heat Distribution: The crossbone stud pattern securely holds electric heating cables in place, ensuring even spacing and rapid heat transfer. It minimizes air pockets by up to 81%, resulting in faster warm-up times and up to 11% greater energy efficiency.
- Minimal Roll Memory: Unlike standard membranes that curl after unrolling, FLEXBONE HEAT lays perfectly flat, simplifying layout, cutting, and installation for DIYers and professional tile contractors.
- Strong Uncoupling & Crack Isolation: The 1/4-inch thick structure effectively absorbs movement between the subfloor and tile, preventing tile cracks and grout damage, especially in areas with temperature variations or structural stress.
- Waterproof & Vapor-Resistant Barrier: Provides complete moisture protection and substrate isolation, making it ideal for wet areas such as showers, bathrooms, laundry rooms, kitchens, basements, and hot tub surrounds.
- Universal Tile Compatibility: Suitable for all tile and stone finishes, including ceramic, porcelain, marble, granite, mosaic, and natural stone tiles, ensuring a flawless and durable tile installation.
- Ideal for Any Room: Perfect for living rooms, foyers, dining areas, hallways, enclosed balconies, food courts, and commercial lobbies, delivering comfortable warmth and long-term performance.
- Flexible Sizing Option: Sold in convenient 8.4 sq. ft. sheets, allowing you to purchase the exact amount needed for your project without investing in a full roll—ideal for small renovations or partial flooring upgrades.
Product Description:
The ARDEX FLEXBONE HEAT Membrane Sheet is a high-performance 3-in-1 in-floor heating, uncoupling, and waterproofing membrane engineered with German precision for superior comfort, energy efficiency, and floor protection. Designed for use with electric radiant heating cables, it provides a durable and easy-to-install base that ensures even heat distribution, moisture resistance, and substrate stability for long-lasting tiled floor systems.
Each FLEXBONE HEAT membrane features ARDEX’s patented crossbone stud pattern, which securely anchors heating wires while minimizing air gaps for faster and more efficient heat transfer. This design reduces air space by up to 81%, delivering a quicker floor warm-up and improved energy efficiency of up to 11%. Its 1/4-inch XL uncoupling layer absorbs substrate movement and prevents cracks, ensuring smooth transitions between tile and adjacent flooring materials like hardwood or vinyl.
The waterproof and vapor-resistant construction makes it suitable for use in wet environments such as bathrooms, showers, kitchens, laundry rooms, and basements, protecting against water penetration and mold growth. The low roll memory property ensures the sheets lay flat upon unrolling, streamlining installation for both professionals and DIY homeowners.
Compatible with a wide range of surface materials—including ceramic, porcelain, natural stone, marble, granite, mosaic, linoleum, vinyl, and concrete substrates—the ARDEX FLEXBONE HEAT membrane provides flexibility for any flooring project. Its crack isolation and substrate decoupling capabilities ensure long-term tile integrity, even under thermal expansion or structural movement.
Perfect for residential or commercial renovations, this membrane enhances both functionality and comfort. Whether used in living rooms, foyers, lobbies, or under tile floors in bathrooms and kitchens, the ARDEX FLEXBONE HEAT Membrane provides a durable, waterproof, and energy-efficient foundation for any radiant heating installation. Sold in 8.4 sq. ft. sheets, it allows precise coverage for projects of any size without the need to purchase a full roll—making it ideal for custom installations, room remodels, or DIY flooring upgrades.
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