CeraZorb® Insulating Synthetic Cork Underlayment (2’ x 2’) - 16 sq.ft. - Pack of 4 Sheets


Part Number: CZRG-SH6MM-24X24-P04
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Common Support Questions (8)

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Common Support Questions


When installing electric floor heating over a concrete slab, an insulating underlayment like CeraZorb is highly recommended to ensure efficient operation, faster heating times and warmer floor temperatures.

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No, CeraZorb underlayment floats over the subfloor, adjacent sheets are staggered and taped together to prevent any overlapping.

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Yes, CeraZorb should be bonded to the subfloor with any high quality modified thin-set, or with a bond coat adhesive. Further installation information can be found in the installation manual or in this short video clip.

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CeraZorb is a synthetic cork underlayment, it is made of hemi-crystalline thermoplastic.

Warmly Yours recommends CeraZorb underlayment when installing a floor heating system over a concrete slab to prevent heat loss and protect against moisture. It will not rot, support mold and mildew, or absorb moisture.

- CeraZorb (6mm) has a 1.5 R-value, crack isolation up to 1/4“, reduces sound by up to 22 dB, and is Robinson tested (TCNA) and rated for light commercial loads.
- Cork (6mm) has a .72 R-value, crack isolation up to 1/32“, reduces sound by up to 23 dB, and is Robinson tested (TCNA) and rated for residential loads.

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Yes, unlike natural cork, CeraZorb will not expand under self leveling cement (SLC).

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No. Put a skim coat of SLC, or even plywood over it first. Then, the vinyl flooring product can be installed.

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Yes, all pressure-sensitive adhesives are fine.

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A decoupling membrane protects the installation from differential expansion/contraction between the substrate and the flooring, relieving almost all shear stresses. Crack isolation protects the installation by isolating the flooring from minor in-plane substrate cracking.

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Publications and Manuals



Specifications


Insulation Specification

Acoustic testing on 6" slab, no ceiling IIC 52 wood construction. FIIC 59 - 7.5" concrete slab. ΔIIC 20 - 6" concrete slab
Compressive Strength 34 psi @ 10% Deformation
Thermal Insulation 1.5 R-Value

Product Dimensions

Coverage 16 sqft
Depth 0.2362 in
Length 48 in
Width 48 in

Identifiers

SKU CZRG-SH6MM-24X24-P04
UPC (GTIN-12) 881308070106

Warranty / Certifications

TCNA Robinson test Light Commercial
Warranty 5 years

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