Knauf Insulation EcoBatt R-13 Unfaced Fiberglass Insulation Batt, 3-1/2 in x 15 in x 105 in, 131.25 sq ft
SKU: 99186043829

Knauf Insulation EcoBatt R-13 Unfaced Fiberglass Insulation Batt, 3-1/2 in x 15 in x 105 in, 131.25 sq ft

Sale price$70.37 Regular price$78.19
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Description

Knauf Insulation EcoBatt R-13 Unfaced Fiberglass Insulation Batt, 3-1/2 in x 15 in x 105 in, 131.25 sq ftEcoBatt R 13 Unfaced Fiberglass Batt Insulation, 15 in x 105 in Knauf Insulation EcoBatt R 13 unfaced fiberglass batts deliver thermal and acoustic performance for walls, floors, and ceilings. Sized 3 1 2 in x 15 in x 105 in to fit 16 in o. c. framing, each bag covers 131. 25 sq ft and features lowdust, resilient fibers made with ECOSE technology. Key Features: Thermal Comfort: R 13 batts help improve energy efficiency in 2x4 walls and other cavities.

EcoBatt R-13 Unfaced Fiberglass Batt Insulation, 15 in x 105 in

Knauf Insulation EcoBatt R-13 unfaced fiberglass batts deliver thermal and acoustic performance for walls, floors, and ceilings. Sized 3-1/2 in x 15 in x 105 in to fit 16 in o.c. framing, each bag covers 131.25 sq ft and features low‑dust, resilient fibers made with ECOSE technology.


Key Features:

  • Thermal Comfort: R-13 batts help improve energy efficiency in 2x4 walls and other cavities.
  • Low Dust, Easy Install: Resilient fibers cut cleanly and recover to full thickness for a snug fit.
  • Acoustic Control: Reduces sound transmission in interior partitions and floor/ceiling assemblies.
  • Sustainable Binder: Made with plant‑based ECOSE technology; no added formaldehyde.
  • Sized for Speed: 15 in width and 105 in length streamline installation in standard stud bays.

Specifications Table:

Specification Details
Insulation type Fiberglass batt
Facing Unfaced
R-Value R-13
Width 15 in
Length 105 in
Thickness 3-1/2 in
Coverage area 131.25 sq ft
Series X17VAK
Use locations Attic, Basement, Ceiling, Crawlspace, Wall, Floor
Quantity in master bag 15
Item code R13UNF15105131

Frequently Asked Questions (FAQ):

Q: Is this insulation faced or unfaced?
A: Unfaced; vapor retarder is not included.


Q: What framing cavities does it fit?
A: Designed for 2x4 (3-1/2 in) cavities and 15 in wide stud bays (16 in on center).


Q: How much area does one package cover?
A: 131.25 square feet per bag.


Q: Where can it be used?
A: Suitable for walls, floors, ceilings, attics, basements, and crawlspaces as appropriate for R-13 applications.


Q: Does it contain formaldehyde?
A: Manufactured with ECOSE technology, a plant‑based binder with no added formaldehyde.


Quiet, Cozy, Effortless Performance

EcoBatt R-13 slips into a space like a tailored layer, softening the echo and sealing in comfort. Its unfaced profile and resilient fibers create a clean, seamless look behind the walls. Pair it with crisp gypsum board and streamlined trim for a refined envelope that feels both quiet and composed. It’s a discreet luxury—performance you feel every day without ever seeing it.


Upgrade your walls with EcoBatt R-13 today for quieter rooms and year‑round comfort in one easy install.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
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  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 99186043829

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★★★★★ 5
Draw string sewn into seam on gloves. They sent a new pair
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Reviewed in the United States on January 24, 2025
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Hands stay warm. Very good purchase fo the price
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Reviewed in the United States on January 9, 2026
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Michael
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★★★★★ 5
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Fixed my busted grille and gave the car a newer look. 2014 320i
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Reviewed in the United States on May 2, 2026
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Sal
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★★★★★ 5
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