Durock Shower System

Introduction and Overview

An exceptionally engineered system for tile shower installations, the USG Durock Shower System is a fully bonded waterproofing system, designed to control moisture independently of the tile covering, while creating a solid base for a long-lasting shower.

Interactive Installation Guide

FAQs

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Frequently Asked Questions

Q: What sets the USG Durock Shower System apart from other systems on the market?

A: The USG Durock Shower System is a fully bonded waterproofing system for tiled shower installations, designed to control moisture independently of the tile covering, while creating a solid base for a long-lasting shower. And because it comes from a manufacturer with a reputation for delivering products and systems designed to outshine the competition, you can trust that it will deliver performance superior to other systems on the market

Q: Can I build a barrier-free (curbless) shower with the USG Durock™ Brand Shower System?

A: Yes. The USG Durock™ Shower System Pre-sloped Shower Trays are 1” thick at the perimeter making it possible to create a barrier-free shower in wood-framed construction without cutting the floor joists, while at the same time, avoiding the unwanted or unnecessary buildup of the surrounding subfloor.

In addition, USG Durock™ Shower System Ramps are available. They are designed to integrate with the Pre-sloped Shower Trays, and allow for easy construction of barrier-free showers. They are made of the same durable 3-lb. density EPS foam as the USG Durock™ Shower System Trays and are offered in two sizes: 12” x 48” and 12” x 60”. They slope from 1 in. to 1/4 in. on the 12-in. side. Click on the following link to see a representation of a barrier-free installation over a wood subfloor: http://www.durockshowersystem.com/interactive-installation-guide.aspx.

Q: Can I cut the curb down in height, width and length?

A: Yes, the USG Durock™ Shower System Curbs can be cut down to fit your requirements. Note: If the curb is cut down in the width dimension to the extent that the hollow sections of the curb become exposed, then the hollow sections should be filled with mortar prior to installing the waterproofing membrane and tile.

Q: How do you fasten shower door hardware to the curb?

A: In cases where the hardware is designed to be fastened to a shower curb, the hardware is installed after the curb has been tiled and grouted. Subsequently, the tile is marked and drilled and the hardware is installed with stainless steel screws and plastic anchors. Sealant should be applied in the holes prior to placing the anchors.

In many cases, only a shower door track is to be installed along the top of the curb. In these instances, the door track is installed on the curb after it has been tiled and grouted with a sealant, such as USG Durock™ Shower System Sealant, a silicone or similar.

Q: Can you put glass block on top of the curb?

A: Yes. The USG Durock™ Shower System Curbs can accept the weight of glass block walls. The curbs are made from durable 3-lb. density EPS foam, which has a compressive strength in excess of 60 psi.

Q: Can I cut down the USG Durock™ Shower System Benches?

A: Yes. Our benches are constructed of solid core 3-lb. density EPS foam, which can be cut to virtually any size or shape to accommodate unique applications or jobsite conditions.

Q: What is the difference between the Pro and Designer Series grates?

A: The Pro Series grates utilize an extremely durable, high impact-resistant, engineering-grade polycarbonate base structure wrapped in stainless steel. They are equipped with a Physical Vapor Deposition (PVD) finish that is bonded to the stainless steel at the molecular level and provides trusted durability and extraordinary scratch and wear resistance.

From contemporary to classic, the Designer Series offers a range of stylish choices to fit your unique shower design. Plus, each grate is cut from a solid block of stainless steel. The 3/16"-thick stainless steel is optimized for high strength and corrosion resistance, and the reflective facets around each opening are meticulously crafted for the most discriminating high-end shower installations.

Q: Are the USG Durock Shower System grates sold separately?

A: Yes. Both the Designer and Pro and Designer Series Grates are sold separately. And with seven designs, two sizes, and more than 10 finishes, the Durock Shower System offers more than 50 grate options to match your decor.

Q: Can I upgrade my Pro Series grate to a Designer Series grate after it has been installed?

A: Yes. You can upgrade to a Designer Series grate at any time. The USG Durock Shower System drain grate tray accepts both the Designer and Pro Series grates.

Q: What makes the the USG Durock Shower System drain unique?

A: The most distinctive trait of the USG Durock Shower System Drain Assembly is its innovative, square design, which accepts both 4" and 5" Durock Shower System Designer and Pro Series grates in a single drain body. This geometry allows more lateral adjustment than traditional round-body drains.

The USG Durock Shower System Drain Assembly also features an innovative bushing design – one PVC and one ABS bushing included with drain assembly – that allows for solvent-weld and no-hub connections to 2" or 3" ABS or PVC waste lines. This, combined with the square geometry, makes it the only universal drain on the market.

Furthermore, unlike competitive offerings, the drain’s integrated bonding flange features a nonwoven fleece on both the top and the bottom of the flange. The fleece on top provides ample surface adhesion for the waterproofing membrane, while the fleece on the underside provides the necessary bonding surface for the mortar that supports the drain assembly. The fleece is co-molded with the ABS drain body to ensure the highest possible permanent bond.

Q: How can the USG Durock Shower System waterproofing membrane deliver twice the performance at half the thickness of competitive offerings?

A: The USG Durock Shower System waterproofing membrane features an oriented HDPE, cross-laminated core that provides strength and tear resistance at much thinner mil thicknesses (0.12 mil), making it the most pliable, user friendly membrane in the industry, with the least amount of buildup at seams. And since it has the lowest perm rating of any load-bearing, bonded waterproofing membrane on the market when tested to ASTM E96 Procedure E (<0.075), it is ideal not only for showers and other wet areas, but for continuous-use residential and commercial steam showers. The USG Durock Shower System waterproofing membrane is one of the strongest, most tear-resistant membranes on the market.

Q: What is the material composition of the USG Durock Shower System shower trays, shower curb and shower benches?

A: The USG Durock shower trays, curb and benches are made of 3-pound density expanded polystyrene (EPS), offering greater support for the tile covering in shower applications. And because the shower trays are only 1" thick at the perimeter, barrier-free installations are much easier to construct without unwanted or unnecessary buildup of the surrounding subfloor. All it takes is just a few simple adaptations to wood-framed construction.

Q: What’s the dimension from the wall to the center of the drain for your standard shower tray sizes?

A: We offer three standard shower tray sizes: 32” x 60” offset drain, 32” x 60” center drain, and 48” x 48” center drain. On the 32” x 60” offset tray, the center of the drain is 10” (254 mm) from the wall lengthwise and 16” from the adjacent wall widthwise. On the 32” x 60” center tray, the center of the drain is 30” from the wall lengthwise and 16” from the adjacent wall widthwise. On the 48” x 48” center tray, the center of the drain is 24” from the wall lengthwise and 24” from the wall widthwise.

Q: What if the USG Durock shower tray doesn’t fit the footprint of my shower floor?

A: The USG Durock shower trays can be cut to size using a utility knife. Ideally, the tray should be cut equally on each side to maintain a level perimeter for the first course of tile. In the event this is not possible, minor differences in the elevation of the perimeter can be built up with thin-set mortar. If the area of the shower floor is larger than the USG Durock shower tray, the area beyond the perimeter of the tray can be extended using dry pack mortar.

Q: Do you have a custom shower tray program?

A: Yes. We now offer a program that helps you design and install near limitless configurations of shower shapes and sizes, up to 64 sq. ft. The new custom shower trays work perfectly with the USG Durock™ Shower System. All of our custom shower trays are manufactured from 3-lb. expanded polystyrene foam (EPS) and are designed specifically to integrate with the USG Durock™ Shower System components and include the Shower Tray Disk.

Q: How do I order a custom shower tray?

A: Click on the following link to read the instructions, download our custom tray order form and find a distributor near you: http://www.durockshowersystem.com/custom-shower-tray-program.aspx.

Q: Can I use another manufacturer’s linear drain with the USG Durock™ Shower System Custom Tray?

A: Often times, yes. Consult your local distributor or sales representative.

Q: What type of backerboard do I use behind the USG Durock Shower System waterproofing membrane?

A: Any code-approved backerboard suitable for use in wet areas (e.g., USG Durock Cement Board Next Gen or FIBEROCK™ Aqua-Tough™ backerboard or underlayment panels).

Q: How come USG doesn’t recommend drywall or water-resistant drywall (greenboard) in wet areas behind the USG Durock™ Shower System Waterproofing Membrane?

A: In 2006 the International Residential Code (IRC) eliminated the use of drywall in areas exposed to direct moisture, such as tub surrounds and shower compartments. This code change, approved unanimously by ICC committee members during the 2003-2004 code cycle, reflects the poor performance record of drywall in wet areas, particularly when used as backing for ceramic or stone tile tub and shower assemblies.

At USG, we agree with the code change because we believe that the sheathing panels that support a ceramic or stone tile tub or shower assembly should be able to stand up to the rigorous demands of a wet environment. For example, if the water supply lines or a mixing valve were to develop a leak in the wall cavity, and consequently saturate the drywall, the tiled shower assembly could sustain permanent damage. This would not be the case if a code-approved backerboard that’s suitable for use in wet areas (e.g., USG Durock® Brand Cement Board or USG Fiberock® Brand Backerboard or Underlayment Panels) was used as backing to support the tile assembly.

Q: What type of thin-set mortar do I use to install the USG Durock Shower System?

A: Use unmodified thin-set mortar meeting ANSI 118.1 to install the USG Durock Shower System.

Q: Can I use the USG Durock™ Shower System with a mortar/mud-bed shower base?

A: Yes. Click on the following link to see a representation of a mortar installation: http://www.durockshowersystem.com/interactive-installation-guide.aspx. Note: USG is launching a trayless version of the shower kit in the Spring of 2015. It’s designed to be used with mortar-bed installations or custom shower trays. In the meantime, all of the Shower System components can be purchased individually.

Q: Is there a place to buy online?

Q: I have a unique situation not covered on your FAQs. Whom should I call?

A: Call 1 800-USG-4YOU.