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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Ships within 48 hours · Estimated delivery Aug 31 - Sep 5

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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:
  1. Standard Shipping : 3-10 business days
  • 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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Jesse
Draper, US
★★★★★ 5
Better than most
Color: Silver, Size: Rechargeable
Very awesome. Works better than expected. Very easy to use and refill when it runs out. Highly recommend!
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Reviewed in the United States on February 27, 2026
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Lizette
Lexington, US
★★★★★ 5
Very good quality
Color: Silver, Size: Rechargeable
There very nice. Battery is very durable.
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Reviewed in the United States on March 2, 2026
M
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Michael
Louisville, US
★★★★★ 4
Good value for price. Get coarse large grained salt to grind or it comes out fast
Color: Silver, Size: Rechargeable, Color: Silver, Size: Rechargeable
Works good upon opening. Get coarse salt or it will come out fast.
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Reviewed in the United States on March 25, 2026
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Lyndsie Smyser
Omaha, US
★★★★★ 5
Incredible quality!!!
Color: Black/Black
We have had these for a little over three months and so far they are still working fantastically. We are amazed at the quality for the price. It makes grinding fresh salt and pepper so easy! Perfect for cooking and topping food.
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Reviewed in the United States on May 23, 2026
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Celio Pereira
West Palm Beach, US
★★★★★ 5
Works well, just wish it was rechargeable
Color: Stainless Steel
These grinders work pretty well and are really convenient to use with one hand while cooking. The adjustable coarseness is nice and the LED light actually helps more than I expected. They seem well made and hold a good amount, just wish they were rechargeable instead of using batteries. Still happy with them overall.
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Reviewed in the United States on May 26, 2026

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