Roxul AFB

Roxul AFB

ROXUL AFB (Acoustical Fire Batts) are flexible, high-density batt insulation designed for any area where fire resistance and acoustical control are of utmost importance.  Designed to be friction fit into standard steel stud interior wall and floor applications, they can be easily cut down to fit snugly around wiring and electrical boxes. Choose from a wide variety of sizing options from the chart below to maximize ease and efficiency when installing the batts.

A 25 Bag minimum order is required and this product is available in select areas only, please call for info.

ROXUL AFB Product Options

Price: $39.95
Call 1-845-388-1200 to order
SKU AFB-025098-1.5"-16"

ROXUL AFB (Acoustical Fire Batts) are lightweight, semi-rigid insulation batts manufactured specifically for steel-stud interior wall & floor applications.  The stone wool content provides a higher density over standard fiberglass batts that effectively reduces airflow and sound transmission.  It has been tested and proven for its dampening effectiveness against low frequency sounds thus creating a more comfortable and peaceful environment.

ROXUL AFB's combination of stone wool and recycled content is fire-resistant and can withstand heat from flames up to 2150° Fahrenheit.  It is non-combustible and does not promote smoke or contribute to fire spread.  It is water repellent and will not absorb water or hold moisture which causes insulation to slump within the wall cavity over time.  ROXUL AFB is chemically inert and therefore will not corrode or promote the growth of mold.

To view our quality Owens Corning EcoTouch Fiberglass Insulation Line, please visit.


ROXUL AFB comes in packages of pre-cut batts in various sizes to fit most standard steel-stud interior applications.  They can be easily cut to fit around electrical boxes and wiring with a standard bread knife.Batts can simply be friction-fit into place for easy installation.  The high density mineral wool composition ensures that the batts will not slump or sag over time ensuring consistent and continuous fire-protection and sound absorbency. 


  • Easily cut
  • Excellent sound absorbency 
  • Non-combustible product with a melting point of approximately 2150° F.
  • Low moisture sorption, repels water, does not rot or promote the growth of mildew, fungi, or bacteria
  • Chemically inert; non-corrosive.
  • CFC- and HCFC - free product and process. 
  • Made from natural & recycled materials, earn LEEDS points.

How to Order:

ROXUL AFB insulation comes in a variety of convenient sizing options to best suit your design application, thereby minimizing the need for resizing or compressing the batts.  The chart above details the exact coverage and amount of batts per package for each size.  Please call our office at 845-388-1200 to determine product availability in your area. 

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Product Data

ROXUL AFB Acoustic Performance:

Acoustic Performance for ROXUL Batts

ROXUL vs. Fiberglass Compliance and Performance:

For a printable version of ROXUL Product Data, please visit.

ROXUL vs. Fiberglass Performance

Standard Applications and Performance for ROXUL AFB:

To view additional applications for commercial wall system performance of ROXUL AFB, please visit.  

Standard Application for ROXUL AFB

Application for ROXUL AFB

Installation Guide

Before installing:

  • Wear long-sleeved, loose fitting clothing, gloves, eye protection, knee pads and a dust mask. 
  • Prepare the necessary tools: tape measure, long-serrated bread knife, straight edge, staple gun (when vapor barrier/retarder is required), caulking gun/acoustical sealant, approved vapor barrier/retarder if required by local building codes. 
  • ROXUL insulation cuts quickly and easily with a knife for fitting around pipes, electrical boxes, wiring, duct work and between studs and joists that are less than a standard width. 


  •  Insert insulation into place until it is flush with joist space.
  •  Ensure ventilation spacing is maintained in attic ceiling applications.
  •  Cut pieces of insulation to fit inside truss.
  •  Apply an approved vapor barrier/retarder in areas where a vapor retarder is recommended.
  •  Vapor barrier should overlap wall barrier and intersecting interior partitions.
Shipping & Returns

Shipping and Return information is specific to this product page only (not for other products on our site).

  • Shipping:
    • Product usually ships within 4-7 days.
    • Please call our office at 845-388-1200 regarding available shipping methods to your location. 
  • Returns:
    • We will accept returns up until 60 days from the date of purchase.  The boxes need to be unopened with no damage and a 25% restocking fee will be charged.
    • Please call or email us to receive an RMA number before returning. No returns will be processed without an RMA number.  
    • We will provide you with a shipping address when giving you an RMA number.
    • Return shipping is customer's responsibility. 
    • If you are shipping via USPS (not recommended) do NOT require signature as we will not be able to pick up your package from local post office facility.
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Product reviews are only available to verified buyers of this product. To leave a review, please refer to the product review email we sent you.
  • Effective (1)
best uses
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Reviewed by 1 customers

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By Jim Baynes

from New Jersey

Verified buyer
Excellent Quality Product
  • Effective
best uses
  • Amateur Recording
  • Home Studio
Comments about Roxul AFB:
Ordered online instead of trying to track it down in a store. Delivery was quick!
Bottom Line Yes, I would recommend this to a friend
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Customers Questions and Answers

1) Annie : We only need to cover one wall. Is it possible we can order enough for 100 sf. I will appreciate it.

Trademark Soundproofing Reply: Hi Annie. This product gets delivered by truck and requires a 25 bag minimum. You should be able topurchase smaller amounts at your local lumber yard.

2) Diane: I see this is advertised for metal stud walls, can it be used with wood studs? thanks Diane

Trademark Soundproofing Reply: Hi Diane, Yes this can be used in wood studs too. Thank You

3) Tom R: Do you know what the r value of the Roxul AFB?

Trademark Soundproofing Reply: About 4 per inch


Trademark Soundproofing Reply: It depends on where you are located please give us your Zip Code and the amount needed and we will let you know if it is available. You can email us at

5) Vern: Is this a type 1 mineral wool?

Trademark Soundproofing Reply: Roxul classifies from Type I thru Type VII