Ends in Days Hours Minutes Seconds

 Shop Now

FloorMuffler UltraSeal Underlayment

UltraSeal Underlayment / 100 Sq. Ft.

Sold by: BuildDirect
SKU: 10109597

USD $0.63 / sq ft 13% Off

Sale Price

USD $0.55 / sq ft

Sale ends on November 29, 2020 PST

In Stock 8,200 sq ft available

Type: UltraSeal Underlayment

Size: 100 Sq. Ft.


sq ft
Enter your coverage
Reminder: Have you calculated your waste factor?
Price @ 100.00 sq ft:
USD $0.55 / sq ft
Does not include shipping or taxes.
Product Cost:

Flexible Monthly Payments with
Learn More and See If You Qualify

Are you a contractor?

30 Day Money Back Guarantee

This means you get 30 days to decide if the product is right for you. Learn more

Product Overview

FloorMuffler ultraSeal is a 2mm, Premium grade, cross-linked polypropylene foam with ultraSeal self-sealing lip and tape system.

  • Patented product for use under most Laminate, Engineered and Solid hardwood flooring applications.
  • Highest Acoustic Ratings on the market – IIC up to (74) dB, STC up to (73) dB, Delta IIC up to (25) dB Built-in Moisture Barrier means no additional films required. UltraSeal self-sealing Lip & Tape system provides additional moisture protection
  • Mold & Mildew Resistant
  • Fully Recyclable
  • Suitable for use with radiant heat flooring
  • Proudly Made in the USA
  • Applications: Residential and Commercial
  • Installations: Floating, Nail down, and Double Glue Down



FloorMuffler Ultraseal Installation

FloorMuffler Acoustics 101

Warranty, Installation & Other Info

You will need Adobe® Reader to view documents. Download it from the Adobe Web site.


Country of Origin
United States
Packaging Dimensions (inches)
Height: 6.5 Length: 39 Width: 6.5
Sqft / Box
Proposition 65

Recommended Products

On Sale
FanFold Underlayment - FanFold Underlayment / 100 Sq. Ft.

Now $0.35 / sq ft

Save up to 13%

Free Shipping
On Sale
Encore Underlayment - Premium Underlayment / 100 Sq. Ft.

Now $0.54 / sq ft

Save up to 8%

Free Shipping
On Clearance
Luxury Vinyl Underlayment - Luxury Vinyl Underlayment / 100 Sq. Ft.

Now $0.47 / sq ft

Save up to 15%

Free Shipping
On Clearance
ONE Underlayment - ONE Underlayment / 200 Sq. Ft.

Now $0.47 / sq ft

Save up to 4%

Not yet reviewed
Free Shipping
Shipping Discount


Sort by
66 reviews
  • 5 star
  • 4 star
  • 3 star
  • 2 star
  • 1 star

    great product, easy to installed

    By Gary P. from Dubois, WY on Dec 1, 2018

    Product was exactly what was expected

    By ellie s. from Chicago, IL on Nov 11, 2018

    Excellent product and easy to install. Excellent price.

    By Steven C. from Lake Lure, NC on Feb 18, 2018

    Very quiet.

    By Daniel J. from Baytown, TX on Dec 19, 2017