FloorMuffler ComboFoam Underlayment

SKU: 15225237
Sold by: BuildDirect
$0.39/sq ft
In Stock18,500 sq ft available
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sq ft
covers 100.00 sq ft
Does not include shipping or taxes
Add 5% for waste factor

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Product Overview

ComboFoam is a Value Grade Acoustic Underlayment & Moisture Barrier. ComboFoam is the most cost-effective underlayment on the market to protect the integrity of your flooring purchase.

  • For use under most Laminate, Engineered and Solid hardwood flooring installations.
  • Reduces through-the-floor and footfall noise. IIC up to (69) dB, STC up to (54) dB
  • Built-in Moisture Barrier means no additional films required. Self-sealing Lip & Tape system provides additional moisture protection
  • Mold & Mildew Resistant
  • Proudly Made in the USA
  • Applications: Residential and Commercial
  • Installations: Floating or Nail down

FloorMuffler Acoustics 101

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Warranty, Installation & Other info
Width (in.)46.50
Length (in.)312.00
Underpad Thickness (mm)2.00
Packaging Dimensions (inches)Height: 46 Length: 6.5 Width: 6.5
Moisture Barrier?Built In Moisture barrier
Radiant Heat Compatible?Not Radiant Heat Compatible
Underpad TypePE Foam
Underpad STC Rating54 dB
Underpad IIC Rating61 dB
Underpad Delta IIC RatingN/A
Underpad R-Value per Inch2.50
Underpad Pre-Attached FloorDo Not Use With Underpad Attached Floor
Country of OriginUnited States
Proposition 65Attention California Residents
Sq Ft / Box100
Residential Warranty (in years)10
Commercial Warranty (in years)1

Customer Reviews (4)

ComboFoam Underlayment

  • 5 Stars


  • 4 Stars


  • 3 Stars


  • 2 Stars


  • 1 Stars


4.9 / 5

    by Susan P. November 16, 2018

    The flooring was delivered as expected. Although the boxes were heavy, we got them in the house and opened them up to acclimate as recommended. The install took about 9 hours using a crew of 3. The installation instructions were very helpful. Build Direct had everything we needed for our floating floor project. . .glue, underlayment and transition trim (we purchased our transitions from a local home improvement store and stained them to match). Build Direct also provided good communication from our sales person. This included everything from delivery information to what I would need to complete my install. The flooring is beautiful, however, it is a bit different than what I expected. It has more knots and the coloration is not consistant from box to box. It is a beautiful but more rustic look than I expected. It is very important to use planks from more than one box as you lay the flooring. Overall, we are very pleased with the flooring and would recommend Build Direct. The flooring product, itself, is of a higher quality than we could obtain at our local home improvement store. It is better priced than flooring obtainable at our local flooring store.

    by Krista D. November 16, 2018

    Really great to get the underlayment from the same company!! Had it all when the intaller came. Loved the quality.

    by Sarah P. November 16, 2018

    Glad we purchased this to put under our vinyl plank flooring. It makes it quieter and softer.

What BuildDirect Customers Are Saying