The Evolution of Floor Underlayments – Maxxon Wrote the Book

Since Gyp-Crete was first developed in 1972, Maxxon Corporation, has provided superior underlayment products for solving virtually any floor problem. Maxxon not only started the industry, but continues to lead it with high quality products, training, research, and expert installation by a network of authorized dealers throughout North America.

gypsum underlayment for floors by maxxonMaxxon has written the book on:

Floor leveling
Gypsum underlayments
Polymer modified cements
Nonpolymer modified cements
Radiant heat thermal mass
Sound control
Fire control

Maxxon Underlayments and Sound Control Mats are ALWAYS “Green” Building Materials

In today’s building market, architects, designers, and building owners alike want solutions that offer superior performance and make environmental sense. Maxxon Underlayments offer the complete package, environmentally friendly with fast installation and drying time, and also may contribute toward earning points for LEED® project certification. Maxxon’s Underlayments are GREENGUARD and GREENGUARD Gold Certified… the most stringent product emission criteria in the market.

All of Maxxon’s gypsum underlayments, Acousti-Mat® Sound Control Mats, and Level-Right Self-Leveling Underlayment are now GREENGUARD Gold Certified, providing the ultimate in green-friendly underlayment and sound control solutions!

Maxxon Corporation is a founding member of the Mississippi Headwaters Chapter of the USGBC.

Maxxon Corporation offers gypsum underlayments, sound control mats, and a cementitious underlayment that may contribute points towards LEED certification

Maxxon Corporation is also a member of the Canada Green Building Council.

Canada Green Building Council

Project Spotlight

A-Mill Artist Lofts

Acousti-Mat® 3 HP, Dura-Cap®, Gyp-Crete 2000®/3.2K, Maxxon® Moistop

Minneapolis, MN

  • 230,500 total sq. ft. of Acousti-Mat 3 HP
  • 21,500 sq. ft. Metal Decking Flutes filled with Dura-Cap
  • 96,000 sq. ft. Polystyrene Foam installed from 1″ to 8″
  • 96,000 sq. ft. Moistop and Gyp-Crete 2000/3.2K at 1″
  • 96,000 sq. ft. Gyp-Crete 2000/3.2K poured from 1″ to 4″


Maxxon Dealer:Floor Technologies, Inc.
Hamel, MN
BKV Group
Minneapolis, MN
Weis Builders
Minneapolis, MN

Overview: The A-Mill Artist Lofts project was an ambitious restoration and redevelopment encompassing two city blocks of historic industrial structures, including the Pillsbury A-Mill constructed in 1881. Situated by St. Anthony Falls on the Mississippi River, the 4 buildings of this historic site needed the highest level of sound control available on the market today, Acousti-Mat 3 HP. The South Mill and Warehouse buildings had a total of 113,000 sq. ft. installed over the old wood floors and covered with concrete. In the Red Clay Tile Building, 21,500 sq. ft. of Acousti-Mat 3 HP was laid over metal decking in which the flutes had been filled in with Dura-Cap and then the mat was covered with concrete.

The system selected for the 96,000 sq. ft. North Mill also included Maxxon’s high performanceAcousti-Mat 3 HP, but first required attention to the out of level floors throughout the building. Floor Technologies started with Moistop, Maxxon’s moisture vapor barrier designed for old wood frame construction, topped with an inch of Gyp-Crete 2000/3.2K to minimize sound flanking. Polystyrene Foam was laid from 1: to 8″ indeepfill areas, then topped with another 1 1/2″ to 4″ of Gyp-Crete 2000/3.2K to minimize sound flanking. Polystyrene Foam was laid from 1″ to 8″ in deepfill areas, then topped with another 1 1/2″ to 4″ of Gyp-Crete 2000/3.2K to help flatten out any sag in the foam. Acousti-Mat 3 HP was loose-laid over the Gyp-Crete 2000/3.2K, and then topped with concrete.

Learn more about all of their underlayment products visit