Cork Sheet CORK-SH6MM-2436

Part Number: CORK-SH6MM-2436
This support page provides publications, manuals, specifications, videos, and common support questions

Common Support Questions (4)

Publications and Manuals (2)

Specifications (9)

Videos (1)

Related Items (1)

Similar Items (1)

Create a new Support Request

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.

Need more help? View support options

CeraZorb® synthetic cork underlayment is a lightweight thermal barrier made of hemi-crystalline thermoplastic.

WarmlyYours recommends CeraZorb® synthetic cork 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® synthetic cork underlayment (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.

Need more help? View support options

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.

Need more help? View support options

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

Need more help? View support options

Publications and Manuals



Country of Origin (COO) Portugal

Product Dimensions

Coverage 6 sqft
Length 2′
Thickness 0.25″
Width 3′


UPC (GTIN-12) 881308021054

Insulation Specification

Thermal Insulation 0.72 R-Value

Warranty / Certifications

Warranty 10 years


Similar Items

Do you need support or specifications for a specific model? Identify your model below.

Speak to a radiant heating expert

Can’t find what you’re looking for? Create a Support Request