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WALL & ATTIC INSULATION

Wall and attic insulation are one of the most cost effective ways to reduce home energy usage. There is also significant innovation in this category with environmentally friendly materials. For the materials themselves — mineral wool, recycled denim, sheep's wool and cellulose — see Insulation under Green Materials.

📚 New to home energy efficiency? Start with ENERGY STAR's Energy Savings at Home guide to see where your home loses the most energy and which upgrades pay back fastest.

Attic & Wall Insulation Materials

Prices and ratings from Amazon.com as of October 9th, 2026 — subject to change.

BEEST FullStop Spray Foam Insulation Kit, 240 Board ft, Fire Rated

$217.53

4.2

★ 

Owens Corning RU41 Fiberglass Insulation, Pink

$121.88

4.6

★ 

Knauf R-38 Faced Fiberglass Batt 24x48, Fits 2x12 Attic (8 Bags)

$943.70

1

★ 

R-38 Unfaced Fiberglass Batt 16x48, 341 sq ft (8 Bags)

$655.16

​

★ 

Owens Corning R-11 Kraft Faced Fiberglass Batt, 24x96

$1,464.92

​

★ 

Johns Manville R-38 Unfaced Batt, 640 sq ft (15 Bags)

$1,069.12

​

★ 

R-38 Kraft Faced High Density Batt 15x48, 280 sq ft

$822.82

​

★ 

Owens Corning R-19 Unfaced Fiberglass Insulation 77.5 Sq.ft (15 in x 93 in)

$69.99

4.7

★ 

INSULATION MARKETPLACE SmartSHIELD 3mm 48 in x 100 Ft Reflective Insulation

$164.85

4.6

★ 

Reflective Insulation Roll 47 in x 10 Ft Double Bubble Reflective

$19.99

4.6

★ 

Closed Cell Spray Foam Insulation, 3840 Sq.Ft. Attic & Wall

$2,594.90

4.9

★ 

Owens Corning R-21 Kraft Faced Fiberglass Batt, 891 sq ft (10 Bags)

$1,133.29

2

★ 

Johns Manville R-38 Kraft Faced Batt, 331 sq ft (8 Bags)

$938.75

​

★ 

Radiant Barrier Insulation Roll, Attic Foil

$145.34

4.4

★ 

SmartSHIELD 10mm R22 Reflective Insulation Roll, 48in x 25ft

$116.35

4.7

★ 

Knauf R-38 Unfaced Fiberglass Batt, 15x48

$864.79

​

★ 

US Energy Products Radiant Barrier Insulation, 1000 sq ft

$133.88

4.6

★ 

Owens Corning R-15 Faced 23 by 93 Fiberglass Batt Insulation Fits 2x4 Walls

$1,015.20

5

★ 

Attic Stairway Insulation Cover - Premium Energy Saving Attic Stairs Cover

$35.55

4.5

★ 

USA Reflective Insulation Bubble Roll, 48 in x 125 ft

$104.62

4.5

★ 

Attic Radiant Barrier, 48 in. x 1000 sq ft, Perforated Double-Sided

$199.95

4.9

★ 

SmartSHIELD 1.5mm Reflective Insulation Roll, 48in x 200ft

$213.35

4.6

★ 

NASA TECH Perforated Radiant Barrier, 500 sq ft (4ft x 125ft)

$78.88

4.6

★ 

Owens Corning R-13 Pink Kraft Faced Fiberglass Insulation

$174.74

4.8

★ 

Double-Sided Metal Single Bubble Insulation Roll

$81.50

4.2

★ 

Knauf R-30 Kraft Faced Fiberglass Batt, 16x48

$852.24

​

★ 

Owens Corning 512 SQFT 8 Bags of R-38 Unfaced 24 by 48 Fiberglass Batt

$891.77

4.9

★ 

Attic Door Insulation Cover, Attic Tent 25 x 54 x 11 in

$29.77

4.7

★ 

Insulation Roll, Radiant Barrier, Pole Barn, White Foam, 48 in x 50 ft

$105.44

4.6

★ 

SmartSHIELD 5mm 24 in x 50 ft R17 Reflective Insulation Roll, Foam Core

$82.40

4.7

★ 

White UV Double Bubble Aluminum Foil Insulation Roll, 12FT x 125IN

$50.17

3.5

★ 

Owens Corning R-11 Fiberglass Batt, Fits 2x4 Walls (8 Bags)

$1,051.00

​

★ 

Knauf R-38 Kraft Faced Batt 15x48, Fits 2x10 Attic

$914.39

5

★ 

SmartSHIELD 20mm Reflective Insulation Roll, 48in x 25ft

$193.95

4.6

★ 

Owens Corning R-19 Unfaced Batt 16x48, 853 sq ft (10 Bags)

$783.91

​

★ 

Double Bubble Insulation Roll, 48in x 75ft (300 sq ft)

$160.00

4.8

★ 

Owens Corning R-19 Fiberglass Batt Insulation Fits 2x6 Floor or Walls

$767.06

4.1

★ 

Radiant Barrier Insulation Roll, 1000 Sq Ft Perforated Attic Foil

$135.99

4.4

★ 

INSULATION MARKETPLACE 16 in x 50 ft Bubble Core Double Reflective Roll

$38.75

4.6

★ 

Reflectix BP24025 24-Inch by 25-Feet Bubble Pack Insulation, 1-Unit

$29.98

4.8

★ 

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