Usg Durock Shower System User Manual download pdf (Page 6)

15. The Durock Shower System

waterprooﬁng application is

now complete. Before

water testing and setting

tile, allow a minimum of

24 hours to ensure both

proper curing of thin-set

mortar and waterproof

performance at all seams

and connections.

16. Insert a water test plug

and ﬁll the shower with

approximately 3" of water.

After 24 hours check for

leakage and remove the

plug. This conﬁrms the

waterprooﬁng is sound.

17. You are now ready to apply

thin-set mortar to the shower

walls and ﬂoor and set tile.

1. The

Durock

™

Shower System

Grate Assembly is installed at

the same time as the ﬂoor tile.

Tip: Remove the construction plug

from the grate tray by pushing up

from the inside, then apply a light

coating of petroleum jelly to the

plug’s edges to keep grout from

bonding to the plug’s perimeter

(this is especially important when

using urethane or epoxy grout

which bonds more aggressively).

2. Install the construction

plug into the grate tray,

and snap the assembly into

the grate tray riser. Apply

thin-set mortar to both the

underside of the grate tray

and to the recessed area of

the drain assembly’s bonding

ﬂange. Place the assembly

into the horizontal adjustment

ring, then place the grate

assembly into the recessed

area of the drain body.

Align the grate assembly with

the layout of the ﬂoor tile and

adjust vertically to ensure the

construction plug is even with,

or slightly below, the surface

of the surrounding tile.

Tip: During the grouting process,

expose the top surface of the

construction plug up to its outer

edges while keeping the grout joints

immediately surrounding the plug

as full as possible.

3. After grouting the shower

ﬂoor, wait at least 24

hours before removing

the construction plug. To

remove the construction

plug after grouting, press

down ﬁrmly a few times

on the center of the plug

to create a separation line

between the perimeter and

the surrounding grout joints.

Insert a thin screw (drywall

screw or similar) into one

of the four start holes in

the construction plug and

thread the screw far enough

in so that the screw grips

the plug ﬁrmly, then use the

screw to pull the plug out.

Install the grate.

Note: The construction plug

ensures that the grate tray remains

absolutely square and in perfect

form for subsequent installation

of the grate. Removing the

construction plug prematurely can

cause the grout to crack, creating

an improper ﬁt to the grate.

For tile application, refer

to manufacturer of setting

material for speciﬁc

information related to type

of mortar, as well as to size

and type of trowel.

Grate Assembly

Construction Plug

Grate

Grate Tray

Grate Tray Riser

Horizontal

Adjustment Ring

Drain Body

with Integrated

Bonding Flange

PVC or ABS Bushing with

2" (5 cm) Coupling Socket

Drain Assembly and Grate Assembly

Shower Floor

Drain Assembly cont.

O-Ring

Grate Puller

For more detailed instructions visit durockshowersystem.com

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