- Some stock photographs may show options that are not included. Please check product description.
3-1/4-Inch X 16-Foot 5-Inch Prova-Flexheat Underlayment Roll
- Mfg.#
- 80228
- Sku#
- 3856416
- Polypropylene Tile & Stone floor underlayment for crack isolation
- Protects tile floors from cracking due to substrate movement
- Made of two layers of polypropylene for mechanical bonding, vapor management and Sheer Stress control to neutralize stress caused by substrate movement
- Red primary layer with white fleece bottom layer
- Vapor Management System: Open-air channels beneath the fleece layer provides a path for moisture to dissipate. Well suited for below-grade installations
* Estimated stock levels as of Fri, Apr 10, 2026. All items subject to prior sale. Prices may vary between stores and online. Please call ahead to confirm availability of items marked as Limited Stock.
Description
PROVA FLEX-HEAT® is an uncoupling and crack isolation membrane for tiled floors that includes channels for inserting low-voltage heating cables (sold separately). The underlayment consists of a polypropylene sheet with studs for carrying heating cables, channels for managing vapor, and a polypropylene nonwoven anchoring fleece for securing the membrane to the substrate. The fleece layer is secured with a polyolefin-based adhesive, and it provides shear stress control by neutralizing stress caused by substrate movement. PROVA FLEX-HEAT accepts heating cables up to 5 mm.
Specifications
General
| Coverage | 54 sq ft. |
|---|---|
| Material | Polypropylene |
| Type | Underlayment |
Dimensions
| Length | 16 ft. 5 in |
|---|---|
| Thickness | 6.5 mm |
| Width | 3.28 in. |
