Highest R-value Insulation

Shop highest r-value insulation

Sponsored

$133.88

Johns Manville R- 38 Attic Kraft Faced Fiberglass Batt Insulation 72-Sq Ft ( 24-In W X 48-In L) | K1293

Lowe's

$133.88

Johns Manville R- 38 Attic Kraft Faced Fiberglass Batt Insulation 72-Sq Ft ( 24-In W X 48-In L) | K1293

Lowe's

$129.00

Owens Corning R- 30.0 Attic Kraft Faced Fiberglass Batt Insulation 88.0-Sq Ft ( 24.0-In W X 48.0-In L) | E56

Lowe's

316

$129.00

Owens Corning R- 30.0 Attic Kraft Faced Fiberglass Batt Insulation 88.0-Sq Ft ( 24.0-In W X 48.0-In L) | E56

Lowe's

316

$119.00

Owens Corning R- 38 Attic Faced Fiberglass Batt Insulation 64-Sq Ft ( 24-In W X 48-In L) | E57

Lowe's

$119.00

Owens Corning R- 38 Attic Faced Fiberglass Batt Insulation 64-Sq Ft ( 24-In W X 48-In L) | E57

Lowe's

$85.98

ROCKWOOL Comfortbatt R- 23.0 Attic Wall Unfaced Stone Wool Batt Insulation 39.8-Sq Ft ( 15.25-In W X 47.0-In L) | RXCB551525

Lowe's

626

$85.98

ROCKWOOL Comfortbatt R- 23.0 Attic Wall Unfaced Stone Wool Batt Insulation 39.8-Sq Ft ( 15.25-In W X 47.0-In L) | RXCB551525

Lowe's

626

$31.14

Owens Corning FOAMULAR NGX F-150 R- 5 , 1-In X 4-Ft X 8-Ft Unfaced Polystyrene Board Insulation | 20WENGX

Lowe's

118

$31.14

Owens Corning FOAMULAR NGX F-150 R- 5 , 1-In X 4-Ft X 8-Ft Unfaced Polystyrene Board Insulation | 20WENGX

Lowe's

118

$87.20

Johns Manville Duct Wrap: 4.2 R-Value, Foil Scrim Kraft, Fiberglass, 48 in Wd, 25 ft Lg, 1 1/2 in Thick, Silver Model: 670378

Grainger

$87.20

Johns Manville Duct Wrap: 4.2 R-Value, Foil Scrim Kraft, Fiberglass, 48 in Wd, 25 ft Lg, 1 1/2 in Thick, Silver Model: 670378

Grainger

$79.98

ROCKWOOL Safe'n'sound R- Wall Unfaced Stone Wool Batt Insulation 59.7-Sq Ft ( 15.25-In W X 47-In L) | RXSS31525

Lowe's

884

$79.98

ROCKWOOL Safe'n'sound R- Wall Unfaced Stone Wool Batt Insulation 59.7-Sq Ft ( 15.25-In W X 47-In L) | RXSS31525

Lowe's

884

$57.66

Owens Corning FOAMULAR NGX F-250 R- 10 , 2-In X 4-Ft X 8-Ft Unfaced Polystyrene Board Insulation | 52DDNGX

Lowe's

$57.66

Owens Corning FOAMULAR NGX F-250 R- 10 , 2-In X 4-Ft X 8-Ft Unfaced Polystyrene Board Insulation | 52DDNGX

Lowe's

$79.98

ROCKWOOL Comfortbatt R- 15.0 Attic Wall Unfaced Stone Wool Batt Insulation 59.7-Sq Ft ( 15.25-In W X 47.0-In L) | RXCB351525

Lowe's

659

$79.98

ROCKWOOL Comfortbatt R- 15.0 Attic Wall Unfaced Stone Wool Batt Insulation 59.7-Sq Ft ( 15.25-In W X 47.0-In L) | RXCB351525

Lowe's

659

$29.98

Johns Manville AP Foil R- 6.0 , 1.0-In X 4.0-Ft X 8.0-Ft Faced Polyisocyanurate Board Insulation | 90034729

Lowe's

$29.98

Johns Manville AP Foil R- 6.0 , 1.0-In X 4.0-Ft X 8.0-Ft Faced Polyisocyanurate Board Insulation | 90034729

Lowe's

$46.48

Johns Manville R- 38 Attic Kraft Faced Fiberglass Batt Insulation 42.66-Sq Ft ( 16-In W X 48-In L) | K1244

Lowe's

$46.48

Johns Manville R- 38 Attic Kraft Faced Fiberglass Batt Insulation 42.66-Sq Ft ( 16-In W X 48-In L) | K1244

Lowe's

$37.57

Perma "R" Products R- 7.8 , 2-In X 4-Ft X 8-Ft Faced Polystyrene Board Insulation | 78920

Lowe's

$37.57

Perma "R" Products R- 7.8 , 2-In X 4-Ft X 8-Ft Faced Polystyrene Board Insulation | 78920

Lowe's

$27.97

Owens Corning R- 13 Kraft Faced Fiberglass Roll Insulation 40-Sq Ft ( 15-In W X 32-Ft L ) Individual Pack | RF10

Lowe's

2K+

$27.97

Owens Corning R- 13 Kraft Faced Fiberglass Roll Insulation 40-Sq Ft ( 15-In W X 32-Ft L ) Individual Pack | RF10

Lowe's

2K+

$20.00

Havelock Wool Insulation Sample Kit

Havelock Wool Insulation

$20.00

Havelock Wool Insulation Sample Kit

Havelock Wool Insulation

$37.57

Insulfoam R- 7.7 , 2-In X 4-Ft X 8-Ft Faced Expanded Polystyrene Board Insulation | 2X48X96 R-TECH

Lowe's

665

$37.57

Insulfoam R- 7.7 , 2-In X 4-Ft X 8-Ft Faced Expanded Polystyrene Board Insulation | 2X48X96 R-TECH

Lowe's

665

$22.03

Kingspan Insulation R- 3.75 , 0.75-In X 4-Ft X 8-Ft Unfaced Foam Board Insulation | 100000048876

Lowe's

$22.03

Kingspan Insulation R- 3.75 , 0.75-In X 4-Ft X 8-Ft Unfaced Foam Board Insulation | 100000048876

Lowe's

$68.99

Sealtech 40' X 24" X 10 mm R-18 Polyethylene Foam Reflective Insulation Roll ST-302-24X40

WebstaurantStore

140

$68.99

Sealtech 40' X 24" X 10 mm R-18 Polyethylene Foam Reflective Insulation Roll ST-302-24X40

WebstaurantStore

140

$80.18

ROCKWOOL Comfortbatt R- 15.0 Attic Wall Unfaced Stone Wool Batt Insulation 60.1-Sq Ft ( 23.0-In W X 47.0-In L) | RXCB3523

Lowe's

503

$80.18

ROCKWOOL Comfortbatt R- 15.0 Attic Wall Unfaced Stone Wool Batt Insulation 60.1-Sq Ft ( 23.0-In W X 47.0-In L) | RXCB3523

Lowe's

503

$79.86

Handi-Foam Insulating Spray Foam Kit: FR HFO, Cream, R-6.1, 2 Lb Container Size, Cylinder Model: P12130G

Grainger

$79.86

Handi-Foam Insulating Spray Foam Kit: FR HFO, Cream, R-6.1, 2 Lb Container Size, Cylinder Model: P12130G

Grainger

$19.82

STYROFOAM Residential Sheathing R- 3.9 , 0.78-In X 4-Ft X 8-Ft Faced Polystyrene Board Insulation | 12031499

Lowe's

$19.82

STYROFOAM Residential Sheathing R- 3.9 , 0.78-In X 4-Ft X 8-Ft Faced Polystyrene Board Insulation | 12031499

Lowe's

$22.97

Kingspan Insulation R- 2.8 , 0.50-In X 4-Ft X 8-Ft Unfaced Foam Board Insulation | 100000048875

Lowe's

$22.97

Kingspan Insulation R- 2.8 , 0.50-In X 4-Ft X 8-Ft Unfaced Foam Board Insulation | 100000048875

Lowe's

$80.78

Reflectix R- 21 Attic Wall Unfaced Reflective Roll Insulation 200-Sq Ft ( 24-In W X 100-Ft L ) Individual Pack | BP24100

Lowe's

$80.78

Reflectix R- 21 Attic Wall Unfaced Reflective Roll Insulation 200-Sq Ft ( 24-In W X 100-Ft L ) Individual Pack | BP24100

Lowe's

$177.45

Unitherm Ceramic Fiber Insulation: Aluminum Silicate, 5 ft Lg, 4 ft W, 1 in Thick, 14 Lb Wt, 1.06 R-Value Model: cf6-1-48x60in

Grainger

$177.45

Unitherm Ceramic Fiber Insulation: Aluminum Silicate, 5 ft Lg, 4 ft W, 1 in Thick, 14 Lb Wt, 1.06 R-Value Model: cf6-1-48x60in

Grainger

$180.00

Blown-In Insulation

Havelock Wool Insulation

$180.00

Blown-In Insulation

Havelock Wool Insulation

$49.48

Lowe's Rmax Thermasheath R- 6 , 1-In X 8-Ft X 4-Ft Faced Polyisocyanurate Board Insulation | ISISORMATS143096

Lowe's

$49.48

Lowe's Rmax Thermasheath R- 6 , 1-In X 8-Ft X 4-Ft Faced Polyisocyanurate Board Insulation | ISISORMATS143096

Lowe's

$104.75

Window & Door Insulating Foam Sealant, High R-Value For Superior Insulation, Water-Resistant, Low Expansion, Eco-Friendly, AAMA & UL Verified (12X24

Amazon.com

Free shipping

$104.75

Window & Door Insulating Foam Sealant, High R-Value For Superior Insulation, Water-Resistant, Low Expansion, Eco-Friendly, AAMA & UL Verified (12X24

Amazon.com

$425.00

Froth Pak 200 Spray Foam Insulation Kit, 9 ft Hose - Closed Cell, 2 Part Foam Sealant, Yields Up To 200 Board Ft

Amazon.com

Free shipping

$425.00

Froth Pak 200 Spray Foam Insulation Kit, 9 ft Hose - Closed Cell, 2 Part Foam Sealant, Yields Up To 200 Board Ft

Amazon.com

Free shipping

$30.86

Johns Manville AP Foil R- 13.0 , 2.0-In X 4.0-Ft X 8.0-Ft Faced Polyisocyanurate Board Insulation | 90014714

Lowe's

305

$30.86

Johns Manville AP Foil R- 13.0 , 2.0-In X 4.0-Ft X 8.0-Ft Faced Polyisocyanurate Board Insulation | 90014714

Lowe's

305

$38.05

Frost King Duct Wrap: 4 R-Value, Foil, Cotton, 12 in Wd, 15 ft Lg, 1 in Thick, Silver Model: CF55

Grainger

574

$38.05

Frost King Duct Wrap: 4 R-Value, Foil, Cotton, 12 in Wd, 15 ft Lg, 1 in Thick, Silver Model: CF55

Grainger

574

$84.96

Johns Manville High Temperature Insulation: Calcium Silicate, 12 in Lg, 12 in W, 1 in Thick, 1.03, 12 in X 12 in Model: 676057

Grainger

$84.96

Johns Manville High Temperature Insulation: Calcium Silicate, 12 in Lg, 12 in W, 1 in Thick, 1.03, 12 in X 12 in Model: 676057

Grainger

$168.88

US Energy Products Double Sided Reflective Heat Radiant Barrier Aluminum Foil Insulation (1/4 Thick R8 Double Poly-Air) Roll: Walls Attics Air Ducts

Amazon.com

Free shipping

$168.88

US Energy Products Double Sided Reflective Heat Radiant Barrier Aluminum Foil Insulation (1/4 Thick R8 Double Poly-Air) Roll: Walls Attics Air Ducts

Amazon.com

$24.62

Frost King Duct Wrap: 6 R-Value, Foil, Fiberglass, 12 in Wd, 15 ft Lg, 2 in Thick, Silver Model: SP55/6

Grainger

$24.62

Frost King Duct Wrap: 6 R-Value, Foil, Fiberglass, 12 in Wd, 15 ft Lg, 2 in Thick, Silver Model: SP55/6

Grainger

$52.50

Rockwool Comfortbatt R-23 16 in. X 47 in. Stone Wool Insulation (8-Pack)

Mc Mu

$52.50

Rockwool Comfortbatt R-23 16 in. X 47 in. Stone Wool Insulation (8-Pack)

Mc Mu

$69.94

Sealtech 3mm Reflective Insulation Roll - Premium Foam Core Radiant Barrier For Energy Conservation -Commercial Grade Soundproofing Thermal Shield For

Walmart

Free shipping

$69.94

Sealtech 3mm Reflective Insulation Roll - Premium Foam Core Radiant Barrier For Energy Conservation -Commercial Grade Soundproofing Thermal Shield For

Walmart

$291.48

Roxul High Temperature Insulation: Board, Mineral Wool, 2 in Thick, 24 in W, 4 ft Lg, Brown, 8 R-Value Model: 40265

Grainger

$291.48

Roxul High Temperature Insulation: Board, Mineral Wool, 2 in Thick, 24 in W, 4 ft Lg, Brown, 8 R-Value Model: 40265

Grainger

$43.99

Sealtech 20' X 24" X 5 mm R-16 Polyethylene Foam Reflective Insulation Roll ST-301-24X20

WebstaurantStore

144

$43.99

Sealtech 20' X 24" X 5 mm R-16 Polyethylene Foam Reflective Insulation Roll ST-301-24X20

WebstaurantStore

144