Structis expertly installs gypsum and self-leveling concrete floors with sound mats to create sound resistant multifamily homes and renovate old floors to become like new again.

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Expertly Poured Floors

Structis offers both multifamily and commercial flooring options. Our professional team quickly pours gypsum or cementitious flooring over sound mats to meet your multifamily project needs and specs. To work with an expert team to finish your underlayment project on time, and on budget, just click the button below to get a free quote today!

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Gypsum Underlayment

Benefits of Gypsum Flooring

Structis combines gypsum and concrete to form a lightweight mixture (Maxxon® Gyp-Crete®) that pairs perfectly with sound mats to create a more sound resistant multifamily or commercial building. Here are some of the benefits of this poured underlayment option:

  • Minimal Pressure and Extra Security – With a 28% lighter weight than concrete, Gyp-Crete® is much easier to work with. It dries fast, is almost entirely self-leveling, and is durable.
  • Quick Projects with Ultra-Fast Dry Time – One of the biggest perks is how quickly gypsum floors dry and fully cure. Mere hours after installation, this underlayment is open to foot traffic.
  • Noise Resistant Flooring – Gypsum underlayment is perfect for multifamily homes because it offers incredible sound resistance by dampening floor vibrations when it’s paired with acoustical sound mats.


Floor Underlayment Applications

With years of experience and a professional team, Structis is the ideal choice for underlayments whether it’s gypsum or cementitious floors or sound mats. Read about each of our specialties below and get a free quote from us when you’re ready.

Gypsum Floors

Maxxon® Gyp-Crete® is the top choice for multifamily homes due to its impressive sound control qualities and low pricing. Click below to have the leading underlayment installed by our expert Structis team today.

Sound Mats

Maxxon Acousti-Mats® are designed to increase IIC ratings and suppress sound in multifamily homes. This unique sound mat helps insulate airborne and impact-based sound for a quieter living experience. Get our Structis team to install your sound mat and gypsum underlayment combo today.

Cementitious Floors

Maxxon® Level-Crete™ is both extremely strong and affordable, which makes it perfect for renovation projects to cap uneven, rough, or spalled concrete floors.

Level-Right® is a self-leveling, hydraulic cement-based underlayment that requires no special prep or floor removal to cap concrete, existing floors, and adhesive material.

Underlayment Features

  • Gypsum cement-based underlayments with compression strengths up to 4500 psi
  • Portland cement-based self-leveling underlayments with compression strengths up to 5500 psi
  • Systems advisors for sound control, fire ratings, and specifications
  • Laser Leveled Floors
  • Resurfacing lightweight concrete, spalled concrete, rough unfinished concrete
  • Smooth and level old wood floors
  • Therma-Floor underlayment as the heat mass for radiant floors
  • Leveling over hollow core and precast concrete planks
  • Encapsulating vinyl asbestos tile

Project Tools

Interactive System Selector

As the creator of gypsum underlayment, Maxxon is the best source of information on sound and fire ratings, and their interactive system selector helps you narrow it down before enlisting our Structis team. Try it out for yourself!

Structis Products

Underlayment Products by Maxxon

As the original creator of Maxxon® Gyp-Crete® and as the leaders in the industry, it’s only fitting that Structis uses Maxxon products for gypsum, cement, and sound mat underlayment options. Paired with our team’s expert skills, you can be confident that your floors are made to last. Check out some of the products that our Structis team uses to complete every project with professional results.

Gyp-Crete® Gypsum Underlayment:

  • Basic
  • 2000 Multifamily
  • Gyp-Fix® EZ Patch
  • Radiant
  • High Performance

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Cementitious Underlayment:

  • Level-Crete™
  • Level-Right®
  • Level-Right® LDF
  • Level EZ

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Sound Mat Underlayment:

  • Acousti-Mat® 1/8
  • Acousti-Mat® 1/4
  • Acousti-Mat® 1/4 Premium
  • Acousti-Mat® 3/8 Sound Control
  • Acousti-Mat® 3/4
  • Acousti-Mat® 3/4 Premium
  • Acousti-Top®

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Frequently Asked Questions

FAQ – Underlayments

Chances are, you already know quite a bit about underlayment. But if you have questions, we put some of the most asked ones below. If you have further questions, don’t hesitate to reach out. When you’re done, click today to get a quote on your next project.

IIC and FIIC are measures of how soundproof a material is, but there’s a slight difference between the two terms. Impact Insulation Class (IIC) is the lab rating of a material’s sound resistance. Field Impact Insulation Class (FIIC) is a more accurate on-site test that takes the combined soundproofing materials into account. These measures are both based on how well the chosen material reduces impact noises like footfall, scraping, jumping, etc. With a higher IIC or FIIC (multifamily buildings want to be around 55 FIIC), there’s a higher level of acoustic insulation in a material, which means that sounds are significantly reduced.

Flooring is made up of four parts that make a durable, well-designed structure. These layers include:

  • Joists – Foundation and frame of the flooring (most commonly made with wood)
  • Subfloor – Structured layer of plywood beneath the underlayment
  • Underlayment – Smooth, flat, and durable layer that provides stability for the surface flooring
  • Floor Covering – Topmost part of flooring (carpet, vinyl, tile, and other materials are used)

Underlayment is a must for durable flooring that lasts for years. It works to protect your building from mold, mildew, and moisture. Plus, it minimizes loud sounds and the risk of a fire with its sound and fire resistant qualities.

The point of placing sound mats with your underlayment of choice is to absorb vibrations and suppress noises. With this combination, quieter floors are the result in commercial and multifamily buildings.