Hi-Tech Gypsum is an authorized applicator for the entire line of USG underlayment products. Below is a sampling of products we install:
USG Underlayment Products & Toppings
Levelrock® Brand 2500 Series Floor Underlayments
Offers the highest compressive strengths in its class (2000 to 3200 psi), providing low-thickness applications over plywood subflooring in single-family, multi-family and hotel/motel construction.
Approximate Compressive Strength
2,000 – 3,000 psi (13.8 – 22.1 MPa)
Levelrock® Brand CSD® Early Exposure™ Series Floor Underlayments
Self-sealing poured underlayments designed specifically for interior use in buildings with light-gauge steel frame construction and direct application to corrugated steel decks.
Approximate Compressive Strength
3,500 – 5,000 psi (24.1 – 34.5 MPa)
Levelrock® Sound Absorbing Floor Underlayment Mats
Levelrock® Brand SAM-N25™ Ultra Sound Attenuation Mat
Economical slim-profile sound mat with a special moisture control backing the provides superior IIC ratings for demanding sound environments.
Substrate Type
Wood, Concrete, Corrugated Steel Deck, Structural Panels
Sound Mat/Board Thickness
5/16 in. (8 mm)
Min. Underlayment Thickness
1 in. (25 mm)
Levelrock® Brand SAM-N40™ Sound Attenuation Mat
Durable sound attenuation mat increases the IIC and STC values to meet or exceed IBC code requirements.
Substrate Type
Wood, Concrete, Corrugated Steel Deck, Structural Panels
Sound Mat/Board Thickness
2/5 in. (10 mm)
Min. Underlayment Thickness
1 in. (25 mm)