ABOUT PROJECTS RESOURCES CONTACT Questions? Call (800) 356-7887 English | español Gypsum Underlayments Self-Leveling Floors Sound Control Moisture Mitigation Specialty Home > Gypsum Underlayments > Therma-Floor® Gypsum Underlayments Gypsum Underlayment Chart Gyp-Crete® Gyp-Crete 2000®/3.2K Gyp-Fix EZ™ Therma-Floor® Data Sheet Specifications Fire Ratings/Detail Drawings Downloads Dura-Cap® Commercial Topping® Therma-Floor® Data Sheet Manufacturer: Maxxon® Corporation 920 Hamel Road P.O. Box 253 Hamel, MN 55340 Phone: 1-800-356-7887 or (763) 478-9600 Fax: (763) 478-2431 Product Description: Therma-Floor® is a gypsum underlayment designed to pour over hot water tubes or electric heating cables. It acts as the thermal mass for any radiant floor system. Therma-Floor encases the tubes or cables in crack resistant, noncombustible gypsum. Its special formula resists breakdown to 150ºF (66ºC). And because it's poured only 1-1/4" (32 mm) thick, the heating system is more responsive and more comfortable. Therma-Floor, an Eco-Friendly building product, is an ideal solution for sustainable building projects. Technical Data: Compressive Strength: Typical range of 2,000 to 3,000 psi (14 to 21 MPa) K-Factor: 4.96 Btu · in/(h­ · ft² · °F) (.7142 W/[m · °C]) R-Value: *R-Value = depth of pour in inches divided by K-Factor 0.252 at depth of 1.25" Specific Heat: .224 Btu/(lb · ºF) at 85ºF (.9385 kJ[kg · ºC] at 29.44ºC) Weight: At 1-1/4", less than 12 lbs./sq.ft. (At 32 mm, less than 58.7 kg/m²) Dry Density: 115 lbs./ft³ (1840 kg/m³) Point Loading: Typical loading of up to 2,500 pounds (1134 kg) on a 1" (25 mm) diameter disc Thermal Resistance at 1" Thickness: R-0.208 Surface Burning Characteristics: Flame spread: 0 Fuel contributed: 0 Smoke density: 0 VOC: GREENGUARD Gold Certified 'Green' Information: Sample USGBC LEED Credit Areas* Project Credit Category Environmental Quality EQ 2 Low Emitting Materials EQ 4 Indoor Air Quality Assessment EQ 9 Acoustic Performance Materials & Resources MR 3 Building Product Disclosure and Optimization - Sourcing Raw Materials * Credits may vary depending on project type and Maxxon products used. Therma-Floor is GREENGUARD and GREENGUARD Gold Certified. For additional information on GREENGUARD from UL Environment, the USGBC, and Therma-Floor's qualifications for earning LEED points, please see our "Go Green" page. Code Listings: ESR-2540 ULEU.R8477 ESR-1153 ESR-1141 ESR-1774 HUD951i GREENGUARD Certified GREENGUARD Gold Certified ABOUT MAXXON About Projects Resources Contact Press Room MAXXON PRODUCTS Gypsum Underlayments Self-Leveling Floors Sound Control Moisture Vapor Treatments Specialty Products PROFESSIONALS Dealer Login Acoustician Login Regional Reps PARTNER SITES Rapid Floor Equivalent Products INFO@MAXXON.COM | (800) 356-7887 THE MAXXON PRODUCT LINE IS AVAILABLE THROUGHOUT NORTH AMERICA. Home | Canada | en español © 2001-2021 MAXXON, INC. ALL RIGHTS RESERVED. PRIVACY POLICY