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GURU G-FLEX Uncoupling Membrane
GURU G-FLEX Uncoupling Membrane
GURU G-FLEX Uncoupling Membrane
GURU G-FLEX Anti-Fracture Waterproof Decoupling Membrane Render
GURU G-FLEX Uncoupling Membrane
GURU G-FLEX Uncoupling Membrane
GURU G-FLEX Uncoupling Membrane
GURU G-FLEX Anti-Fracture Waterproof Decoupling Membrane Render

GURU G-FLEX Uncoupling Membrane

Tile Underlayment for Waterproofing, Crack Isolation & Uncoupling

$38.18 - $536.85
$38.18
$38.18 - $536.85
$38.18
GURU USA  |  MPN: ILU-CUSTOM  |  UPC: NA
Free Shipping Eligible
Availability:
10 in stock!
Availability:
14 in stock!
Size: 23 sq ft (3'3" x 7'1")

23 sq ft G-FLEX Uncoupling Membrane

  • Coverage Area: 23 sq ft
  • Roll Dimensions: 3 ft 3 in × 7 ft 1 in
  • Membrane Thickness: 1/8 in (3 mm)
  • Core Material: High-density polyethylene (HDPE)
  • Backing Material: Thermo-bonded polypropylene fiber
  • Standards Compliance: ANSI A118.10, ANSI A118.12, IAPMO accepted

GURU® G-FLEX Uncoupling Membrane is a waterproof tile underlayment designed for uncoupling, crack isolation, load distribution, and vapor management beneath tile installations. It features an HDPE core with a thermo-bonded polypropylene backing and meets ANSI A118.10 and A118.12 requirements.

Key Features
  • Uncoupling Membrane: Separates tile coverings from substrate movement.
  • Waterproof Construction: Creates a waterproof layer beneath tile when properly installed.
  • Crack Isolation: Meets ANSI A118.12 requirements.
  • Vapor Management Design: Raised pattern allows vapor pressure equalization beneath the tile assembly.
  • Load Distribution: Transfers loads across the tile assembly.
  • ANSI Compliant: Meets ANSI A118.10 and ANSI A118.12 standards.
Best For
  • Tile installations over concrete and wood substrates
  • Projects requiring waterproofing and crack isolation
  • Commercial and heavy-duty tile applications
  • Installations exposed to substrate movement
  • Areas requiring vapor management beneath tile

Why Professionals Choose Tile This

  • Free shipping on eligible orders $200+
  • Same-day shipping before 2 PM CST (Mon–Sat) for in-stock items
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  • Authorized GURU USA Dealer
GURU G-FLEX Uncoupling Membrane 23 sq ft (3'3" x 7'1") $38.18

Description

GURU® G-FLEX Uncoupling Membrane is a waterproof tile underlayment designed for uncoupling, crack isolation, load distribution, and vapor management beneath tile installations. It is manufactured from high-density polyethylene with a raised circular pattern and a thermo-bonded polypropylene fiber backing.

The membrane meets ANSI A118.10 waterproofing and ANSI A118.12 crack isolation requirements. It is used beneath ceramic, porcelain, and stone tile installations where waterproofing, uncoupling, and crack isolation are required within a single underlayment system.

Specifications

Specification Details
Membrane Thickness 1/8" (3 mm)
Core Material High-Density Polyethylene (HDPE)
Backing Material Thermo-Bonded Polypropylene Fiber
Color Red
Temperature Range -22°F to +176°F
Standards ANSI A118.10 & ANSI A118.12

Frequently Asked Questions

What functions does G-FLEX provide?
GURU G-FLEX provides uncoupling, waterproofing, crack isolation, load distribution, and vapor management beneath tile installations.
Does G-FLEX meet industry standards?
Yes. GURU G-FLEX meets ANSI A118.10 waterproofing requirements and ANSI A118.12 crack isolation requirements.
What tile types can be installed over G-FLEX?
GURU G-FLEX is designed for ceramic tile, porcelain tile, and natural stone tile installations.
What materials is G-FLEX made from?
GURU G-FLEX features a high-density polyethylene (HDPE) core with a thermo-bonded polypropylene fiber backing.
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