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M-D

3-1/4-Foot X 16-Foot 5-Inch Prova-Flex Underlayment Roll

Mfg.#
80212
Sku#
3856176
  • Protects tile floors from cracking due to substrate movement
  • Center layer design provides channels allowing moisture to escape
  • Premium polymer-modified thin set mortar required for installation, no premixed mortar or mastic
  • Achieved EXTRA HEAVY Performance Rating When Tested to ASTM C627

* Estimated stock levels as of Fri, Mar 27, 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® Underlayment Roll, protects tile floors from cracking due to substrate movement. The underlayment features a patented Shear Stress Control® system with nonwoven anchoring fleece to neutralize stress caused by movement in the substrate. With lightweight functionality and the top scrim layer that provides the ultimate locking mechanism for mortar, fill the central layer studs with mortar in fewer trowel passes for quick and easy installation. Tile or stone can be installed immediately over PROVA-FLEX®

Specifications

General

Coverage 54 sq ft.
Material Polypropylene
Type Underlayment

Dimensions

Length 16 ft. 5 in.
Width 3.28 ft

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