A word about our Poured Gypsum Floor Underlayment Products.
The following Underlayments may be specified from 2500psi up to 8000psi.
All of the following Underlayments will be walkable 90 minutes after the area has been poured.

LEVELROCK® brand 2500 floor underlayment offers the highest compressive strength in its class, providing low-thickness applications over plywood subflooring in single-family, multi-family and hotel/motel construction. This underlayment helps maximize sound isolation between floors/units and may be used with a Levelrock™ brand sound mat or sound board for improved STC and IIC ratings.

• Pourable before drywall to control moisture and mold
• Installs at rates up to 40,000sf per day
• Applies at thickness of 3/8-in. over concrete, 3/4-in. over plywood to 3-in.
• Compressive strength: 2,500-3,500 psi
• Ideal for wood-frame and multi-family construction

LEVELROCK® brand 3500 floor underlayment provides superior performance for higher-traffic areas in both wood-frame and light-commercial construction. This underlayment also provides exceptional sound resistance and may be used with a Levelrock™ brand sound mat or sound board for improved STC and IIC ratings.

• Installs over wood and concrete subfloors
• Meets vinyl-industry commercial specifications
• Applies at thickness of 3/8-in. over concrete, 3/4-in. over plywood to 3-in.
• Compressive strength: 3,500-4,500 psi
• Great alternative to concrete floors in light commercial and renovation applications.

LEVELROCK® brand 4500 floor underlayment provides a smooth, hard underlayment surface over concrete slabs, pre-stressed concrete and concrete planks. This underlayment accepts a variety of floor coverings and exceeds commercial vinyl-floor-covering requirements.

• Allows traffic within hours of installation
• Exceptional surface hardness resists indentation
• Applies thickness of featheredge to 3-in.
• Compressive strength: 4,500-5,500 psi
• High compressive strength for commercial, institutional and rehab construction
• Available as early exposure for fast return of trades.

LEVELROCK® brand 2500 & 3500 Radiant Heat floor underlayment provides tough compressive and surface strengths for long-term resistance to the trade activity typical of a commercial construction site. This non-shrinking formulation locks radiant heat tubing in place to prevent noise and tube chafing, and it prevents the high temperature of radiant heat systems from breaking down the floor matrix.

• Accepts virtually all types of floor coverings including ceramic tile, carpeting and wood
• Applies at thicknesses of 3/4-in. above tubes to 3-in. or 1 1/2-in. typical over 1/2-in. pex
• Specify Compressive strength: 2,500-4,500 psi
• For electric and hot water radiant heat floor installations in residential & commercial construction.