Installation Guide

Installation Support •(800) 875-5285 • www.WarmlyYours.com

INSTALLATION INSTRUCTIONS

SURFACE PREPARATION

Surface must be structurally sound, clean, dry, and free from dirt, oil sealers or any contaminants that would prevent a good bond.

CeraZorb must acclimatize in their sealed packaging for 48 hours at a temperature of 65ºF (18ºC).

CONCRETE SLAB

Inspect concrete sub oor for any open cracks and ll with a high-grade patch. Remove any excess concrete lumps or residue that

may interfere with the installation of CeraZorb. The concrete slab should be fully cured, dry, smooth, at, and accept water penetration.

Concrete must be free of eforescence and not subject to hydrostatic pressure. A good quality concrete waterproof sealer may be

required if moisture in the slab is above 10 percent.

GYPSUM SUBSTRATES

Gypsum substrates must have a PSI greater than 2000 and must rst be primed or sealed per manufacturer’s instructions.

WOOD SUBSTRATES

The sub oor should be permanently dry, smooth, at, and clean – free from dirt, grease, wax, paint, oil, or anything that would hinder a

good bond. Plywood sub ooring should be of a good grade. Variations in oor level over 1/8” within a 3-ft. span should be leveled before

installing underlayment. Any nails or other protrusions should be pounded at or removed. Sub oor should have L360 for deection.

THERMAL INSULATING & SOUND CONTROL UNDERLAYMENT

GROUT

CERAMIC TILE

CERAZORB

TEMPZONE™

FLOOR HEATING SYSTEM

POLYMER-MODIFIED

THIN SET MORTER

MAPEI ULTRACONTACT® or ULTRACONTACT RS

or equivalent BOND COAT ADHESIVE

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® INSTALLATION INSTRUCTIONS THERMAL INSULATING & SOUND CONTROL UNDERLAYMENT CERAMIC TILE GROUT POLYMER-MODIFIED THIN SET MORTER TEMPZONE™ FLOOR HEATING SYSTEM CERAZORB MAPEI ULTRACONTACT® or ULTRACONTACT RS or equivalent BOND COAT ADHESIVE SURFACE PREPARATION Surface must be structurally sound, clean, dry, and free from dirt, oil sealers or any contaminants that would prevent a good bond. CeraZorb must acclimatize in their sealed packaging for 48 hours at a temperature of 65ºF (18ºC).
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® INSTALLATION INSTRUCTIONS THERMAL INSULATING & SOUND CONTROL UNDERLAYMENT BONDING MATERIAL CeraZorb can be bonded to the sub floor with Mapei Ultracontact or UltracontactRS bond coat adhesive or any high quality latex/polymer modified thin-set (recommended, but not sold through WarmlyYours). Use a 1/8” x 1/8” x 1/16” V-Notched trowel. Apply only enough adhesive as can be covered by a 2’ x 4’ sheet. Clean up any extra adhesive before the adhesive skins over.