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Underlayments - Uncoupling Membranes, Waterproofing & Other Underlayments

Whether you’re laying a new tile floor, building a shower, or wanting to add to sound dampening qualities to a new floor installation, underlayments are the way to go. We carry a variety of different of underlayments by some of the most trusted and respected manufacturers in the business. We are proud to offer underlayments by Laticrete, Custom Building Products, Protecto Wrap, Greenskin, and Schluter (only available in-store).

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Bison Level-It System - Adjustable Pedestal LC Bison Level.It Adjustable Pedestal - LC-18 & LC-316

Bison Level.It System Adjustable Deck Pedestals Model LC-18 & LC-316 have a height range from 2" - 4-3/4".

Price: $9.08
Bison Level.It System - Plastic Shim PS1 Bison Level.It System - Plastic Shim PS1

Bison Level.it adjustable deck supports are the simple solution to your decking needs! The Bison Deck can be used on rooftops, balconies, cracked concrete patios, even on-grade!

Price: $1.45
Custom Crack Buster Mat Underlayment, 36" x 75' Custom Crack Buster Mat Underlayment, 36" x 75'

Custom Crack Buster Mat Underlayment is a self-bonding fabric and asphaltic mat designed to reduce crack transmission in ceramic tile or stone floors in extra heavy duty commercial installations.

Price: $263.74
New Price: $248.00
You save $15.74!
Custom RedGard SpeedCoat Waterproofing Membrane- StoneTooling.com Custom RedGard SpeedCoat Waterproofing Membrane

Custom RedGard SpeedCoat is a ready­-to-­use, waterproofing membrane for
both commercial and residential ceramic and natural stone tile
installations.

Price: $140.00
CustomTech Silk Patching & Finishing Compound CustomTech Silk Patching & Finishing Compound

CustomTech Silk Patching & Finishing Compound is a fast-curing, calcium aluminate based, patching and finishing compound that provides a smooth finish to a variety of substrates prior to the installation of floor coverings.

Price: $14.43
CustomTech TechLevel-WSF Fiber Reinforced Self-Leveling Underlayment CustomTech TechLevel-WSF Fiber Reinforced Self-Leveling Underlayment

TechLevel-WSF SLU is a high flow, fiber reinforced calcium aluminate cement based, self-leveling underlayment that eliminates the need for reinforcing lath over plywood and OSB on interior wood framed subfloors.

Price: $28.67
Custom TechLevel 150 Self-Leveling Underlayment- StoneTooling.com CustomTech TechPrime A Acrylic Primer

TechPrime A is an advanced acrylic primer and sealer that prepares surfaces for the application of an appropriate CustomTech™ self-leveling underlayment. It seals porous and non-porous surfaces and improves the bond of the underlayment to the subsurface.

Price: $28.67
USG Durock Tile Membrane Adhesive Durock Tile Membrane Adhesive

DUROCK Title Membrane Adhesive is solvent-free and specifically formulated for use with DUROCK Title Membrane.

Price: $66.67
Durock Tile Membrane, 300 sq ft Durock Tile Membrane, 300 sq ft

A lightweight, waterproof, high-performance underlayment and tilebacker that installs quickly in residental and light commercial spaces.

Price: $220.00
Ecore QT E-Grip III Adhesive Ecore QT E-Grip III Adhesive, 4 Gallons

Ecore QTscu Sound Control Underlayment

Price: $166.70
Ecore QTscu Perimeter Isolation Strips, 6mm - Case of 6 Ecore QTscu Perimeter Isolation Strips, 6mm - Case of 6

Ecore QTscu Sound Control Underlayment

Price: $87.84
Ecore QTscu Sound Control Underlayment Ecore QTscu Sound Control Underlayment

Ecore QTscu Sound Control Underlayment

Price: $100.80
GreenSkin Flooring Crack Suppression Isolation Membrane GreenSkin Flooring Crack Suppression Isolation Membrane, 36" x 75'

GreenSkin GS-4000CSI, is a state-of-the-art, 100% clean & green, super-sticky, crack isolation flooring underlayment.

Price: $324.21
Laticrete Hydro Barrier- StoneTooling.com Hot Buy! Laticrete Hydro Barrier Waterproof / Anti-fracture Membrane

LATICRETE Hydro Barrier is a thin, load bearing, self curing liquid rubber polymer which can be easily applied to form a flexible seamless waterproof anti-fracture membrane. Sale price good through 9/30.

Sale Price from: $49.95
Laticrete 252 Silver Thinset, Gray Laticrete 252 Silver Thinset, Gray

Laticrete 252 Silver is an economical polymer modified, bagged, cementitious thin-set powder to be mixed only with water using the thin-set method of installation.

Price: $9.67
Laticrete 252 Silver Thinset, White Laticrete 252 Silver Thinset, White

Laticrete 252 Silver is an economical polymer modified, bagged, cementitious thin-set powder to be mixed only with water using the thin-set method of installation.

Price: $11.00
Laticrete 253 Gold Thinset, Gray Laticrete 253 Gold Thinset, Gray

Laticrete 253 Gold is an economical polymer modified, bagged, cementitious thin-set powder to be mixed only with water using the thin-set method of installation.

Price: $12.84
Laticrete 253 Gold Thinset, White Laticrete 253 Gold Thinset, White

Laticrete 253 Gold is an economical polymer modified, bagged, cementitious thin-set powder to be mixed only with water using the thin-set method of installation.

Price: $14.63
Laticrete 272 Mortar, Grey Laticrete 272 Mortar, Grey

Laticrete 272 Mortar is a high performance bagged cementitious powder to be mixed with either water or latex admixture to install ceramic tile and stone using the thin-set method of installation. Designed for interior or exterior installation of ceramic tile and stone for walls and floors.

Price: $15.44
Laticrete 272 Mortar, White Laticrete 272 Mortar, White

Laticrete 272 Mortar is a high performance bagged cementitious powder to be mixed with either water or latex admixture to install ceramic tile and stone using the thin-set method of installation. Designed for interior or exterior installation of ceramic tile and stone for walls and floors.

Price: $19.66
Laticrete 9235 Liquid, 6 Gal Laticrete 9235 Liquid, 6 Gallon

Laticrete 9235 Waterproofing Membrane is a thin, load-bearing waterproofing designed specifically for the special requirements of ceramic tile, stone and brick installations.

Price: $497.71
Laticrete 9235 Waterproofing Membrane Full Unit Laticrete 9235 Waterproofing Membrane - Full Unit

Laticrete 9235 Waterproofing Membrane is a thin, load-bearing waterproofing designed specifically for the special requirements of ceramic tile, stone and brick installations.

Price: $550.65
Laticrete Blue 92 Anti-Fracture Full Unit Laticrete Blue 92 Anti-Fracture Full Unit

Laticrete Blue 92 Anti-Fracture Membrane is a two–part system consisting of a liquid rubber and reinforcing fabric.

Price: $406.47
Laticrete Blue 92 Anti-Fracture Membrane Roll Laticrete Blue 92 Anti-Fracture Membrane Roll

Laticrete Blue 92 Anti-Fracture Membrane is a two–part system consisting of a liquid rubber and reinforcing fabric.

Price: $95.06
Laticrete Hydro Ban Corners, 2 Pack Laticrete Hydro Ban Corners, 2 Pack

Laticrete Hydro Ban is ideal for a variety of applications that require waterproofing.

Price: $9.32
Laticrete Hydro Ban Waterproofing Sealing Tape Laticrete Hydro Ban Sealing Tape, 5" x 98' 5" Roll

Laticrete Hydro Ban is ideal for a variety of applications that require waterproofing.

Price: $54.67
Laticrete Hydro Ban Waterproofing Sheet Membrane Laticrete Hydro Ban Sheet Membrane

Hydro Ban Sheet Membrane is a waterproof sheet membrane that is installed using a substrate appropriate Laticrete thin-set.

Price: $129.33
Hydro Ban - Laticrete Waterproofing Membrane, 1 Gal Laticrete Hydro Ban, 1 Gallon

Laticrete Hydro Ban is a thin, load bearing waterproofing/crack isolation membrane that DOES NOT require the use of fabric in the field, coves or corners.

Price: $79.00
Hydro Ban - Laticrete Waterproofing Membrane, 5 Gallon Laticrete Hydro Ban, 5 Gallon

Laticrete Hydro Ban is a thin, load bearing waterproofing/crack isolation membrane that DOES NOT require the use of fabric in the field, coves or corners.

Price: $299.96
Laticrete NXT Level Plus Self-Leveling Underlayment, 55 Lb Bag Laticrete NXT Level Plus, 55 Lb Bag

Laticrete NXT Level Plus is a high quality, cement-based, free-flowing underlayment for use in leveling interior substrates, for both residential and commercial applications.

Price: $34.60
Laticrete NXT Level Underlayment, 50 Lb Bag Laticrete NXT Level, 50 Lb Bag

Laticrete NXT Level is a cement-based underlayment for use in leveling interior substrates, for both residential and commercial applications.

Price: $21.65
Laticrete NXT Patch- Underlayment Patch, 25 Lb Bag Laticrete NXT Patch, 25 Lb Bag

Laticrete NXT Patch is a premium quality, fast-drying underlayment patch designed for use over most substrates

Price: $17.48
Laticrete NXT Skim Self-Leveling Underlayment, 10 Lb Bag Laticrete NXT Skim, 10 Lb Bag

Laticrete NXT Skim is a premium quality, fast-drying, cement-based underlayment designed for skim-coating, smoothing and leveling prior to the application of floor coverings.

Price: $17.77
Laticrete Tile & Drain Mat 4' x 50' Roll Laticrete Tile & Drain Mat 4' x 50' Roll

Laticrete Tile & Drain Mat is part of the Plaza and Deck system. Lightweight, efficient drainage mat; 300% better flow rate than crushed gravel drain bed.

Price: $805.87
Laticrete Waterproofing Membrane Fabric, 6" x 75' Roll - StoneTooling.com Laticrete Waterproofing Membrane Fabric, 6" x 75' Roll

The Laticrete Waterproof Membrane Fabric is ideal for expansion joints and cracks exceeding 1/8" or more.

Price: $19.93
Mapei Mapeguard ST Waterproofing Sealing Tape - StoneTooling.com Mapei Mapeguard ST Waterproofing Sealing Tape

Mapei Mapeguard ST is a fast, easy way to cover seams and wall upturns to provide
waterproofing and vapor management protection when installing Mapeguard
UM underlayment membrane for ceramic tile and stone.

Price: $15.89
Mapei Mapeguard UM Underlayment Membrane- StoneTooling.com Mapei Mapeguard UM Underlayment Membrane

Mapei Mapeguard UM is a premium-performance, lightweight, waterproofing and vapor pressure-equalizing underlayment membrane that provides crack suppression for use under ceramic tile and stone installations, for both residential and commercial
applications.

Price: $78.93
Mapei Mapelastic Aquadefense Waterproofing Membrane- StoneTooling.com Mapei Mapelastic Aquadefense - Waterproofing & Crack-Isolation Membrane

Mapelastic AquaDefense is a premixed, advanced liquid-rubber, extremely quick-drying waterproofing and crack-isolation membrane for installation under ceramic tile or stone in residential, commercial and industrial environments.

Price: $57.99
Mapei Mapelastic CI - Crack-Isolation Membrane- StoneTooling.com Mapei Mapelastic CI - Crack-Isolation Membrane

Mapelastic CI is a premixed, liquid-rubber, quick-drying crack-isolation membrane for installation under ceramic tile or stone in residential and commercial interior and exterior environments.

Price: $35.63
Noble Chloraloy 240 Membrane Noble Chloraloy 240 Membrane

Noble Chloraloy is a premium liner for waterproofing your shower. Unlike standard PVC liners, chloraloy is guaranteed to last a lifetime. It is designed to be used under full  mortar bed installations of tile and stone.

Price: $430.14
Noble CPE Preformed Corner Noble CPE Preformed Corner

Preformed Corner to protect show pan waterproofing from leaks at thresholds and/or for right angles. Made from Chlorinated
Polyethylene.

Price: $4.69
Noble NobleFlex Drain Flashing Noble NobleFlex Drain Flashing

Provides smooth transition of thin-set waterproofing sheet membrane to a clamping ring drain. Ideal for NobleSeal thin-set (thin bed) waterproofing membranes or full mortar bed membranes when the drain is set too low.

Price: $17.33
Noble NobleFlex Drain Flashing Tool Noble NobleFlex Drain Flashing Tool

To be used with NobleFlex Drain Flashing and NobleSeal TS Membrane.

Price: $3.33
Noble NobleSeal TS Waterproofing Membrane Noble NobleSeal TS Thin-Set Waterproofing Membrane, 5' x 100'


NobleSeal TS is a single sheet membrane that provides waterproofing and crack isolation/joint bridging for thin-set installations of ceramic and stone tile.

Price: $700.00
Protecto Wrap AFM Anti Fracture Membrane, 36" x 75' Protecto Wrap AFM - Anti-Fracture Membrane

Protecto Wrap AFM Anti-Fracture Membrane,  36" x 75' is designed for use under thin-set tile, stone and marble as a crack suppression and anti fracture membrane.

Price: $267.00
Protecto Wrap AFM Kit, 12in x 25ft Protecto Wrap AFM Kit - Anti-fracture & Crack Suppression

Protecto Wrap AFM, 12in x 25ft is designed for use under thin-set tile, stone and marble as a crack suppression and anti fracture membrane.

Price: $37.50
Protecto Wrap PW 100/40 Air/Vapor Barrier Thru Wall Flashing- StoneTooling.com Protecto Wrap PW 100/40 Air/Vapor Barrier Thru Wall Flashing

A peel and stick membrane for use as a positive air/vapor stop in everyday construction. Our product is a 40 mil SBS modified rubberized asphalt sheet waterproofing membrane that fully bonds to most substrates through the primer course.

Price: $28.51
Protecto Wrap WhisperMat HW Sound Reduction Membrane Protecto Wrap Whisper Mat HW - Sound Control Membrane

Whisper Mat HW, 36" X 50' roll (150 sqft)  is a peel & stick non-permeable sheet membrane, which reduces impact and airborne sound transmissions and is a moisture/vapor barrier for use in Engineered Hardwood, Parquet and Laminate Flooring.

Price: $163.35
Protecto Wrap Whisper Mat CS Anti-Fracture & Sound Control Membrane Protecto Wrap WhisperMat CS - Anti-Fracture & Sound Control Membrane

Protecto Wrap Whisper Mat CS, 36" x 40' is designed to be an underlayment for ceramic and stone tile installations where transmitted or impact sound reduction is required.

Price: $176.65
RedGard Waterproofing and Crack Prevention Membrane, 1 Gallon RedGard Waterproofing and Crack Prevention Membrane, 1 Gallon

RedGard is a ready-to-use, elastomeric, waterproofing and anti-fracture membrane for commercial and residential tile and stone installations.

Price: $46.97
RedGard Waterproofing and Crack Prevention Membrane, 3.5 Gallon RedGard Waterproofing and Crack Prevention Membrane, 3.5 Gallon

RedGard is a ready-to-use, elastomeric, waterproofing and anti-fracture membrane for commercial and residential tile and stone installations.

List Price: $121.00
Price: $115.00
You save $6.00!
Roberts 7250 Cork Adhesive - 4 Gallon Roberts 7250 Cork Adhesive - 4 Gallon

Roberts 7250 Cork Adhesive is designed to adhere unfinished cork underlayment to plywood of underlayment quality and concrete above, on or below grade. This latex-based cork adhesive provides a strong initial grab and good tack.

Price: $30.77
Schluter Ditra Drain STU Self Adhesive Seaming Tape Schluter Ditra Drain STU Self Adhesive Seaming Tape

Schluter-DITRA-DRAIN is a drainage membrane designed for use within thin-bed ceramic and stone tile assemblies in exterior applications. DITRA-DRAIN is typically installed over the Schluter-KERDI bonded waterproofing membrane.

Price: $38.46
Schluter Ditra Drain Membrane Schluter Ditra Drain Uncoupling Membrane

Schluter-DITRA-DRAIN is a drainage membrane designed for use within thin-bed ceramic and stone tile assemblies in exterior applications. DITRA-DRAIN is typically installed over the Schluter-KERDI bonded waterproofing membrane.

Price: $246.95
Schluter Ditra Heat Membrane Schluter Ditra Heat Membrane Roll

With DITRA-HEAT, your floors can combine the beauty of tile with the comfort of an electric floor warming system to bring a touch of luxury into any room of the home. 134.5 ft2 roll.

Price: $301.74
Schluter Ditra Membrane - Uncoupling & Waterproofing Schluter Ditra Uncoupling Membrane

Schluter-DITRA is a polyethylene membrane with a grid structure of square cavities, each cut back in a dovetail configuration, and an anchoring fleece laminated to its underside.

Price: $103.82
Schluter Ditra XL Uncoupling & Waterproofing Membrane Schluter Ditra XL Uncoupling & Waterproofing Membrane

Schluter-DITRA-XL serves as an uncoupling layer, waterproofing membrane, and vapor management layer that accommodates moisture from beneath the tile covering.

Price: $344.62
Schluter Ditra Heat Membrane Schluter Ditra-Heat-TB Membrane Roll

Schluter-DITRA-HEAT-TB is the newest electric floor warming system with integrated thermal break from Schluter.

Price: $375.00
Silca System - Silca Grate 16" x 18.25" X 1.5" Piece Silca System - Silca Grate 16" x 18.25" X 1.5" Piece

When connected to wood floor joists, Silca Grate™ grids provide a substructure (sub-floor) for a wide variety of decking materials: stone, brick pavers, slate, travertine pavers, marble, granite.

Price: $13.66
Laticrete Strata Mat Uncoupling Membrane Special Deal! Laticrete Strata Mat Uncoupling Membrane

Laticrete Strata Mat is a next generation high performance uncoupling membrane for use under ceramic tile and stone installations, for both residential and commercial applications. Sale price good through 9/30.

Sale Price from: $134.10
   
 

Uncoupling Membranes – With anti-fracture properties, these membranes provide excellent crack suppression by allowing the flooring to move independently of the substrate. Composed of a thin sheet with a waffle-like grid on one side and anchoring fabric on the underside, these membranes are excellent for use under all types of tile and stone flooring.

Liquid Waterproofing Membranes – Featuring a thick, liquid consistency similar to paint, these membranes are excellent for providing waterproofing in showers, swimming pools, fountains, and other similar applications. Additionally, liquid membranes also have horizontal and vertical crack suppression, crack isolation, and anti-fracture properties. They come in bucket or pail and are easily applied with a paint brush or roller.

Cork – This versatile membrane is used for impact noise and sound reduction, crack isolation, thermal insulation, and mildew and moisture resistance. Cork is an environmentally friendly product that naturally occurs and is sustainably harvested from the bark of a tree.

Sheet Membranes – These membranes are made from rubberized asphalt sheet or flexible foam. Some are designed specifically for used under tile and stone flooring while others are designed for used under wood and laminate flooring. Sheet membranes can offer anti-fracture resistance, thermal insulation, sound reduction, and be a moisture barrier.