Nuheat® Membrane Sheet is a tile underlayment designed for uncoupling, crack isolation, and streamlined installation of Nuheat Cable. It installs across the subfloor to support cable placement, manage moisture during curing, and provide a stable surface for tile installation.
Nuheat Membrane Sheet is constructed from a polypropylene layer with square-shaped pillars that support vapor management and movement accommodation. It is compatible with Nuheat Cable, including cold lead joints, end seals, and sensor probes, without cutting or modification.
Key Functions
- Uncoupling and Crack Isolation: Reduces stress transfer from the substrate to tile assemblies.
- Vapor Management: Pillar structure allows moisture to escape during thinset curing.
- Cable Integration: Accommodates Nuheat Cable and system components without modification.
- Flexible Heat Output: Supports cable spacing for 10, 12, or 15 W/ft² heat output.
- Thinset Compatibility: Compatible with modified and unmodified thinsets.
- Waterproofing Capability: Provides waterproofing when installed with waterproofing seam tape.
Installation Options
Nuheat Membrane Sheet is available in two installation formats that share the same functional membrane design but differ in backing and installation method.
- Standard: Installed using modified or unmodified thinset beneath the membrane. The non-woven polypropylene fabric backing absorbs thinset to bond the membrane to the substrate.
- Peel & Stick: Installed using a pressure-sensitive adhesive backing applied directly to a primed subfloor. Mechanical anchoring is created when thinset passes through vented pillars during tile installation.
Specifications
| Specification | Details |
|---|---|
| Material | Polypropylene membrane with square-shaped pillars |
| Thickness | 0.22 in |
| Sheet Coverage | 10.6 sq ft |
| ANSI A118.12 | High Performance |
| Robinson Floor Test (ASTM C627) | Extra Heavy (Standard) / Moderate (Peel & Stick) |
| Max Ambient Temperature | 194°F (90°C) |
Nuheat® Membrane Sheet provides a consistent underlayment system for uncoupling, crack isolation, vapor management, and Nuheat Cable installation, with installation flexibility determined by backing type rather than membrane performance.
