Underlayment | CeraZorb® Insulating Synthetic Cork Underlayment (48" x 24" x 5mm) | CZRG-SH5MM-24X48
CeraZorb® synthetic cork underlayment is recommended when installing a TempZone™ floor heating system over a concrete slab to prevent heat loss. By creating a thermal break, the heat is prevented from sinking into the concrete, and more heat radiates into the floor covering and room. CeraZorb® is lightweight, up to 25 times lighter than 1/4" backer board, and weighs in at only 28 lbs. per 400 sq. ft. box. It is available in 4’ x 2’ sheets, providing 8 square feet of coverage. A minimum order of 4 sheets is required.