HomeStore

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

Product image 1
1 / 4

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

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.

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.

$23.46

Original: $78.19

-70%
Knauf Insulation EcoBatt R-13 Unfaced Fiberglass Insulation Batt, 3-1/2 in x 15 in x 105 in, 131.25 sq ft

$78.19

$23.46

Description

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.

You may also like

NEW
Thumbnail 1Thumbnail 2

RELIABILT 144-in Galvanized Steel White Wall Moulding Trim

$6.15

NEW
Thumbnail 1Thumbnail 2

Genesis 4-ft x 2-ft Smooth Pro White PVC Drop Ceiling Tile (1-Pack, 8-sq ft / Case)

$15.37

NEW
Thumbnail 1Thumbnail 2

Armstrong Ceilings WoodHaven ceilings and walls Classic White Mdf Surface-mount Ceiling Plank Sample

$2.43

NEW
Thumbnail 1Thumbnail 2

Genesis 2-ft x 2-ft Stucco Pro White PVC Drop Ceiling Tile (1-Pack, 4-sq ft / Case)

$8.31

NEW
Thumbnail 1Thumbnail 2

Armstrong Ceilings 4-ft x 2-ft Random Textured Contractor White Mineral Fiber Drop Ceiling Tile (10-Pack, 80-sq ft / Case)

$65.28

NEW
Thumbnail 1Thumbnail 2

Armstrong Ceilings 4-ft x 2-ft Textured Contractor White Mineral Fiber Drop Ceiling Tile (10-Pack, 80-sq ft / Case)

$106.25

NEW
Thumbnail 1Thumbnail 2

Armstrong Ceilings 2-ft x 2-ft Random Textured Contractor White Mineral Fiber Drop Ceiling Tile (16-Pack, 64-sq ft / Case)

$72.99

NEW
Thumbnail 1Thumbnail 2

Genesis 2-ft x 2-ft Icon Relief White PVC Drop Ceiling Tile (1-Pack, 4-sq ft / Case)

$11.01

NEW
Thumbnail 1Thumbnail 2

From Plain to Beautiful in Hours 2-ft x 2-ft Lilac Steel (Unfinished) Steel Surface-mount Ceiling Tile (6-Pack, 24-sq ft / Case)

$73.93

NEW
Thumbnail 1Thumbnail 2

Armstrong Ceilings 2-ft x 2-ft Single Raised White Mineral Fiber Drop Ceiling Tile (6-Pack, 24-sq ft / Case)

$82.09

NEW
Thumbnail 1Thumbnail 2

Armstrong Ceilings Easy Elegance White PVC Drop Ceiling Tile Sample

$2.43

NEW
Thumbnail 1Thumbnail 2

USG Ceilings 4-ft x 2-ft White Mineral Fiber Drop Ceiling Plank (6-Pack, 48-sq ft / Case)

$69.95

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