Installation Guide

INSTALLATION 23

Waterprooﬁng

At the joints, fill the matting with Schluter

SET

, Schluter ALL-SET

, Schluter FAST-

SET

, or unmodified thin-set mortar,

approximately 8" (203 mm) wide, centered

over the joint.

Comb additional Schluter SET

Schluter ALL-SET

, Schluter FAST-

SET

, or unmodified thin-set mortar

over the joint using a 1/4" x 3/16"

(6 mm x 5 mm) V-notched trowel or the

KERDI-TROWEL, which features a 1/8" x

1/8" (3 mm x 3 mm) square-notched design.

Apply 5" (127 mm)-wide KERDI-BAND,

centered over the joint. Using the flat side

of the trowel, firmly press the banding into

the mortar to ensure 100% coverage and to

remove excess mortar and air pockets.

At all wall junctions, apply KERDI-BAND as

described in steps 1-3, centered where the

wall and floor meet. In some applications

the vertical section of the floor/wall transition

will not accept a bond to unmodified

thin-set mortar. Connections to such

elements can be achieved using KERDI-FIX

sealant and bonding compound or suitable

trowel-applied waterproofing materials, such

as those that require atmospheric moisture

to cure (e.g., urethane sealant).

Note: KERDI-BAND must lap DITRA-HEAT and DITRA-HEAT-DUO at seams and at floor/wall

transitions by a minimum of 2" (50 mm) in order to maintain waterproof integrity.

The following steps are required for waterprooﬁng only:

Note: While the heating cable is protected by the DITRA-HEAT and DITRA-HEAT-DUO matting, be careful when applying the mortar to not

damage the cable with the notched trowel.