nVent Nuheat 2000005808 Uncoupling Heating Membrane 54 Sq Ft Roll, Non-Woven Polypropylene Heating Pad, Waterproof and Anti-Fracture Floor Underlayment for Underfloor Heating System

Product Features:

• Engineered for seamless integration with nVent Nuheat electric floor heating cables as part of the Chemelex Heating System.
• Provides exceptional uncoupling, crack isolation, and waterproofing to help protect tile and grout from substrate movement, moisture exposure, and long-term stress.
• Designed with greater load-bearing capacity and improved shear strength to support durable tile and stone installations in residential, commercial, and high-traffic applications.
• Features reduced roll memory for easier handling, faster layout, and improved flatness during installation.
• Increases the thermal mass of the subfloor assembly, helping support consistent radiant heat transfer and long-lasting heated floor comfort.
• Improves vapor management performance by allowing moisture within the assembly to escape during curing, helping promote stronger tile adhesion.
• New pillar cavity shape helps eliminate pieces of hardened mortar from releasing during installation, supporting a cleaner and more reliable cable placement process.
• Eliminates the need for a second layer of plywood or cement backer board in most approved tile installations, reducing floor buildup and installation time.
• Evenly distributes radiant floor heat across tiled surfaces for consistent comfort and efficient underfloor heating performance.
• Compatible with a wide range of approved floor coverings, including ceramic tile, porcelain tile, marble, granite, natural stone, engineered stone, vinyl tile, cement tile, travertine, slate, limestone, sandstone, quartzite, mosaic tile, and glass tile.
• Ideal for wet areas such as bathrooms, kitchens, steam rooms, shower floors, laundry rooms, basements, entryways, and other moisture-prone spaces.
• Rated “Extra Heavy” by the Robinson Floor Test, ASTM C627, for commercial-grade durability in high-traffic areas such as hotels, restaurants, offices, retail stores, and public spaces.
• Meets ANSI A118.12 standard for high-performance crack resistance, helping reduce the risk of tile and grout damage caused by substrate movement.
• 1/4" low-profile design minimizes finished floor height while maintaining strength, flexibility, uncoupling performance, and radiant heat system compatibility.
• Polypropylene construction with square-shaped columns securely locks Nuheat heating cable in place without cutting or modification.
• Functions as a vapor management layer, allowing moisture to escape during curing and helping support long-lasting tile adhesion.
• Compatible with top-tier mortars, including Mapei Keraflex RS, Schluter ALL-SET, LATICRETE 254 Platinum, Custom Building Products VersaBond-LFT, TEC Full Flex, ARDEX X 5, and ARDEX X 77. Ensure ANSI A118.11 compliance when installing over plywood or OSB.
• Suitable for DIY and professional installation, accommodating straight, curved, or angled floor layouts.
• Can be installed over concrete, plywood, OSB, gypsum underlayments, cement backer board, and other approved substrates.

Product Description:

The Nuheat Membrane is a high-performance tile underlayment and uncoupling membrane engineered for seamless integration with nVent Nuheat electric floor heating cables as part of the Chemelex Heating System. Designed for radiant heated floors, tile protection, waterproofing, and crack isolation, this membrane helps create a durable and energy-efficient floor assembly for residential, commercial, and high-traffic applications. When installed with compatible Nuheat heating cables and a thermostat, it supports reliable floor temperature control and consistent warmth across tile and stone surfaces.

This updated Nuheat Membrane design offers greater load-bearing capacity, improved shear strength, reduced roll memory, increased thermal mass within the subfloor assembly, and enhanced vapor management performance. These improvements help make installation easier while supporting long-term tile stability, improved mortar bonding, and dependable radiant heat transfer. The new pillar cavity shape is designed to help eliminate pieces of hardened mortar from releasing during installation, creating a cleaner, more secure surface for placing Nuheat electric heating cables.

The Chemelex Nuheat Membrane eliminates the need for a second layer of plywood or cement backer board in most approved tile installations, reducing finished floor buildup and saving installation time. Its 1/4" low-profile design helps maintain a minimal floor height while still delivering strong uncoupling, waterproofing, crack isolation, and radiant floor heating performance. The membrane is ideal for remodeling, renovation, bathroom heated floor projects, kitchen tile installations, shower tile applications, and professional flooring upgrades.

Chemelex Nuheat Membrane serves as a flexible uncoupling layer between the subfloor and the finished flooring assembly. It is bonded to the substrate with thin-set mortar adhesive, creating a stable base that helps absorb substrate movement and reduce stress transfer to the tile covering. This infloor uncoupling layer helps neutralize tension, lateral movement, delamination risk, and shear stress, helping prevent cracks in tile and grout while supporting the long-term structural integrity of the flooring system.

This flooring underlayment for tile is suitable for many approved tile and stone coverings, including ceramic tile, porcelain tile, vinyl tile, cement tile, granite tile, marble tile, travertine tile, slate tile, limestone tile, sandstone tile, onyx tile, quartzite tile, mosaic tile, glass tile, engineered stone tile, and natural stone tile. It can also support select approved flooring applications such as linoleum tile, carpet tile, vinyl flooring, and stone flooring when installed according to manufacturer requirements. Designed for use with underfloor heating systems and underfloor temperature regulation, the membrane helps create a comfortable, energy-efficient, and long-lasting heated floor system.

The Chemelex Nuheat uncoupling and waterproofing membrane achieves a high-performance rating under ANSI A118.12 for system crack resistance and an Extra Heavy rating in the Robinson Floor Test, ASTM C627. This makes it suitable for demanding commercial environments such as hotels, restaurants, retail stores, office buildings, shopping malls, healthcare facilities, and industrial kitchens. Its durability, greater load-bearing capacity, and enhanced shear strength help support long-lasting protection in high-traffic flooring installations.

The Chemelex Nuheat Membrane is also an excellent option for wet areas and moisture-prone spaces, including showers, bathrooms, bathtub surrounds, kitchens, laundry rooms, steam rooms, basements, entryways, hallways, dining rooms, and other interior areas where water exposure or water damage may be a concern. Its waterproofing and vapor management properties help protect the floor assembly while allowing moisture within the substrate to escape during curing, supporting better mortar performance and long-term adhesion.

The membrane’s polypropylene plastic layer features square-shaped columns that form channels designed to embed and securely hold nVent Nuheat Cable in place. This design allows precise cable spacing, stable cable placement, and accurate temperature regulation through a compatible Chemelex or Nuheat thermostat. The improved pillar cavity shape helps prevent hardened mortar pieces from releasing during installation, making the membrane easier to work with while supporting a cleaner and more reliable heating cable layout.

The polypropylene layer is heat-welded to a non-woven polypropylene fabric that absorbs thin-set mortar and creates a strong bond to the subfloor. Compatible substrates include concrete, plywood, OSB, wood, cement backer board, gypsum underlayments, and other approved surfaces. With its low-profile design, enhanced vapor management, improved thermal mass, strong uncoupling performance, and reliable compatibility with Nuheat electric heating cables, the Chemelex Nuheat Membrane provides a professional foundation for durable, comfortable, and efficient heated tile floors.