Roberts First Step Premium Floor Underlayment 100 Square Feet Roll

Roberts First Step Premium 70-102 Floor Underlayment

3 in 1 Acoustical Foam Underlayment 100 SF, 3 mm thick

• Sound Ratings STC 67/IIC 68
• Exceeds Uniform Building Codes
• Outstanding compression resistance
• Lightweight and Easy to Install
• Microban antimicrobial product protection fights the growth of bacteria, mold and mildew
• 8 in. overlap with adhesive strip for installation
• R-Value 0.39 Resistance to Heat.
• Built-in Moisture Barrier
• 100 Square Feet per Roll

Technical Information

Item Code:	70-102
Unit of Measure:	Each
Coverage:	100 SF per Roll
Width of Roll:	40"
Length of Roll:	30 Ft
Thickness:	3 mm
Weight per Roll:	21 lbs
Diameter of Roll:	16.5"

Sound Tests

IIC (Impact Sound Transmission Test)	68
STC (Sound Transmission Loss Test)	67

Both tests measure sound transference from an upper level room to a lower level room. The IIC measures sound such as moving furniture and walking, while the STC measures sound such as voices and television. Minimum sound rating required by most building codes and architects is 50.