ARDEX FLEXBONE HEAT Waterproofing & Uncoupling Membrane Sheet, 8.4 Sq Ft Each, 1/4" Thick Flooring Underlayment Mat for Radiant Floor Heating System Installation UH905

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For ARDEX FLEXBONE HEAT Waterproofing & Uncoupling Membrane Sheet, 8.4 Sq Ft Each, 1/4" Thick Flooring Underlayment Mat for Radiant Floor Heating System Installation UH905 Contractor and Bulk Pricing, Contact Us!


  • FLEXBONE Heat membrane sheet coverage is 8.4 Sq Ft (3 Feet 3 Inches x 2 Feet 7 Inches), thickness 1/4 Inch. 3-in-1 In Floor Heating, Uncoupling and Waterproofing
  • FLEXBONE waterproofing and crack prevention membrane, protecting against water penetration and providing substrate isolation. It's suitable for wet areas such as bathrooms, showers, laundry rooms, kitchens etc
  • 1/4" XL uncoupling thickness allows for seamless transition with hardwood floor as well as other raised flooring types such as large format tile and stone installations
  • ARDEX's unique crossbones pattern reduces contact with cables, allowing for maximum heat conductivity. It reduces air space by up to 81% for faster heated floor warming with up to 11% more energy efficiency
  • The FLEXBONE membrane is compatible with various tile and stone types, including ceramic, porcelain, natural stone, marble tiles. It can be used in both residential and commercial applications

    About the Product:

    ARDEX FLEXBONE HEAT is the ideal membrane for the installation of in floor heating cables. It provides uncoupling, waterproofing and has fast warming properties. It also features minimal roll memory - if unrolled, it will lay flat (doesn't curl). ARDEX's dependable German engineering promises efficiency, durability, ease of use and high performance for any home improvement project. The crossbone stud pattern on the heat membrane was designed for the fast and easy installation of electrical heating cable, which also provides additional benefits. The pattern allows for one-pass thinset mortar adhesive to cover the heat cables fully, speeding up heated floor installation. It creates fewer touchpoints between the heating wire and membrane, improving uniform heat distribution, eliminating cold spots. It leaves less air space within the mat structure for faster and more efficient heating of the floor surface above. The extra large uncoupling width offers a seamless transition with hardwood and other raised flooring. It makes this membrane great for living areas which require infloor heating such as - closed balconies, food courts, lobbies, hallways, foyers, living and dining rooms, basements and garages. It is a durable crack-isolating and uncoupling membrane, protecting your floor tiles and other surfaces by preventing potential damage and reducing grout stress from the substrate below. Works with a wide variety of surfaces - linoleum tiles, vinyl flooring, ceramic tiles, porcelain tiles, cement tiles, marble tiles, natural stone tiles, granite, concrete blocks and carpet tiles. It's a robust waterproofing membrane which makes it usable in your shower, bathroom, hot tub and bathtub surround, kitchen, laundry room and other wet areas where potential water leakage is a concern. These convenient 8.4 Square Foot heat sheets give you the option to obtain the required membrane coverage you need for your DIY or professional project without the need to purchase an entire roll.

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