Shop insulation board for under concrete

Sponsored
About our ads
$37.57
Insulfoam R- 7.7 , 2-In X 4-Ft X 8-Ft Faced Expanded Polystyrene Board Insulation One_Size | 2X48X96 R-TECH
Lowe's
$37.57
Insulfoam R- 7.7 , 2-In X 4-Ft X 8-Ft Faced Expanded Polystyrene Board Insulation One_Size | 2X48X96 R-TECH
Lowe's
$31.14
Owens Corning FOAMULAR NGX F-150 R- 5 , 1-In X 4-Ft X 8-Ft Unfaced Polystyrene Board Insulation One_Size | 20WENGX
Lowe's
124
$31.14
Owens Corning FOAMULAR NGX F-150 R- 5 , 1-In X 4-Ft X 8-Ft Unfaced Polystyrene Board Insulation One_Size | 20WENGX
Lowe's
124
$27.41
Lowe's Rmax Thermasheath R- 6 , 1-In X 8-Ft X 4-Ft Faced Polyisocyanurate Board Insulation One_Size | ISISORMATS143096
Lowe's
$27.41
Lowe's Rmax Thermasheath R- 6 , 1-In X 8-Ft X 4-Ft Faced Polyisocyanurate Board Insulation One_Size | ISISORMATS143096
Lowe's
$37.57
Perma "R" Products R- 7.8 , 2-In X 4-Ft X 8-Ft Faced Polystyrene Board Insulation One_Size | 78920
Lowe's
54
$37.57
Perma "R" Products R- 7.8 , 2-In X 4-Ft X 8-Ft Faced Polystyrene Board Insulation One_Size | 78920
Lowe's
54
$32.47
Kingspan Insulation R- 5 , 1-In X 4-Ft X 8-Ft Unfaced Foam Board Insulation One_Size | 100000048877
Lowe's
120
$32.47
Kingspan Insulation R- 5 , 1-In X 4-Ft X 8-Ft Unfaced Foam Board Insulation One_Size | 100000048877
Lowe's
120
$29.98
Johns Manville AP Foil R- 6.0 , 1.0-In X 4.0-Ft X 8.0-Ft Faced Polyisocyanurate Board Insulation One_Size | 90034729
Lowe's
288
$29.98
Johns Manville AP Foil R- 6.0 , 1.0-In X 4.0-Ft X 8.0-Ft Faced Polyisocyanurate Board Insulation One_Size | 90034729
Lowe's
288
$39.95
INSULATION MARKETPLACE Smartshield -3mm 16inx50ft Reflectiveinsulation Roll, Foam Core Radiant Barrier, Thermalinsulation Shield - Engineered Foil
Amazon.com
6K+
Free shipping
$39.95
INSULATION MARKETPLACE Smartshield -3mm 16inx50ft Reflectiveinsulation Roll, Foam Core Radiant Barrier, Thermalinsulation Shield - Engineered Foil
Amazon.com
6K+
$19.71
Kingspan Insulation R- 2.8 , 0.50-In X 4-Ft X 8-Ft Unfaced Foam Board Insulation One_Size | 100000048875
Lowe's
74
$19.71
Kingspan Insulation R- 2.8 , 0.50-In X 4-Ft X 8-Ft Unfaced Foam Board Insulation One_Size | 100000048875
Lowe's
74
$22.88
STYROFOAM Residential Sheathing R- 3.9 , 0.78-In X 4-Ft X 8-Ft Faced Polystyrene Board Insulation One_Size | 12031499
Lowe's
36
$22.88
STYROFOAM Residential Sheathing R- 3.9 , 0.78-In X 4-Ft X 8-Ft Faced Polystyrene Board Insulation One_Size | 12031499
Lowe's
36
$9.00
Polyiso Insulation Board
Green Building Supply
$9.00
Polyiso Insulation Board
Green Building Supply
$180.00
Havelock Wool Blown-In Insulation
Havelock Wool Insulation
2
$180.00
Havelock Wool Blown-In Insulation
Havelock Wool Insulation
2
$219.95
Smartshield -1.5mm 48" x200ft Reflective Insulation Roll 800 Sq. Ft., Foam Core Radiant Barrier, Thermal Insulation Shield - Foil / Foil
Amazon.com
101
Free shipping
$219.95
Smartshield -1.5mm 48" x200ft Reflective Insulation Roll 800 Sq. Ft., Foam Core Radiant Barrier, Thermal Insulation Shield - Foil / Foil
Amazon.com
101
$65.58
Kingspan Insulation Q250 Fanfold Siding Underlayment R- 0.9 , 0.2-In X 4-Ft X 48-Ft Faced Foam Board Insulation One_Size | 100077933
Lowe's
13
$65.58
Kingspan Insulation Q250 Fanfold Siding Underlayment R- 0.9 , 0.2-In X 4-Ft X 48-Ft Faced Foam Board Insulation One_Size | 100077933
Lowe's
13
$174.99
INSULATION MARKETPLACE Smartshield -3mm 48 inchx100ft Reflectiveinsulation Roll, Foam Core Radiant Barrier, Thermalinsulation Shield - Engineered Foil
Amazon.com
6K+
Free shipping
$174.99
INSULATION MARKETPLACE Smartshield -3mm 48 inchx100ft Reflectiveinsulation Roll, Foam Core Radiant Barrier, Thermalinsulation Shield - Engineered Foil
Amazon.com
6K+
$24.94
Wedi Pro | Sentinel Pro Foam Board By Wedi, 36 Inch X 60 Inch X 1/2 Inch, White - Floor & Decor | 101356657
Floor & Decor
$24.94
Wedi Pro | Sentinel Pro Foam Board By Wedi, 36 Inch X 60 Inch X 1/2 Inch, White - Floor & Decor | 101356657
Floor & Decor
$19.92
Johns Manville AP Foil R- 2.9 , 0.5-In X 4.0-Ft X 8.0-Ft Faced Polyisocyanurate Board Insulation One_Size | 90001013
Lowe's
287
$19.92
Johns Manville AP Foil R- 2.9 , 0.5-In X 4.0-Ft X 8.0-Ft Faced Polyisocyanurate Board Insulation One_Size | 90001013
Lowe's
287
$139.99
Owens Corning 703 Rigid Fiberglass Board 1" Qty 12
Amazon.com
22
Free shipping
$139.99
Owens Corning 703 Rigid Fiberglass Board 1" Qty 12
Amazon.com
22
$222.23
$269.99
SBI Micore-300 Mineral Fiber Insulation Board Pack Of Four AC02565B
eFireplaceStore
17% off
$222.23
$269.99
SBI Micore-300 Mineral Fiber Insulation Board Pack Of Four AC02565B
eFireplaceStore
$139.99
Owens Corning 703 Semi Rigid Fiberglass Board Sound Absorbing Thermal Acoustic Insulation, 2 Inch Thickness (6 Pack)
Amazon.com
113
Free shipping
$139.99
Owens Corning 703 Semi Rigid Fiberglass Board Sound Absorbing Thermal Acoustic Insulation, 2 Inch Thickness (6 Pack)
Amazon.com
113
$29.99
Ceramic Fiber Board - 1" Thick X 12" X 12" - 2300F Rated Fireproof Board - Ceramic Fiber Insulation Board For Stove, Furnace, Forge, Kiln, Boiler,
Amazon.com
Free shipping
$29.99
Ceramic Fiber Board - 1" Thick X 12" X 12" - 2300F Rated Fireproof Board - Ceramic Fiber Insulation Board For Stove, Furnace, Forge, Kiln, Boiler,
Amazon.com
Free shipping
$35.97
Owens Corning R- 15 Kraft Faced Fiberglass Roll Insulation 30-Sq Ft ( 15-In W X 24-Ft L ) Individual Pack | RF32
Lowe's
499
$35.97
Owens Corning R- 15 Kraft Faced Fiberglass Roll Insulation 30-Sq Ft ( 15-In W X 24-Ft L ) Individual Pack | RF32
Lowe's
499
$250.54
Johns Manville High Temperature Insulation: Calcium Silicate, 24 in Lg, 4 ft W, 1/2 in Thick, 0.52, 4 ft X 24 in Model: 638328
Grainger
$250.54
Johns Manville High Temperature Insulation: Calcium Silicate, 24 in Lg, 4 ft W, 1/2 in Thick, 0.52, 4 ft X 24 in Model: 638328
Grainger
$29.99
Ceramic Fiber Board - 1" Thick X 12" X 12" - 2300F Rated Fireproof Board, Ceramic Insulation Baffle Board For Stove, Fireplace, Pizza Oven, Forge,
Amazon.com
Free shipping
$29.99
Ceramic Fiber Board - 1" Thick X 12" X 12" - 2300F Rated Fireproof Board, Ceramic Insulation Baffle Board For Stove, Fireplace, Pizza Oven, Forge,
Amazon.com
Free shipping
$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+
$207.45
Roxul High Temperature Insulation: Board, Mineral Wool, 4 in Thick, 24 in W, 4 ft Lg, Brown, 16 R-Value Model: 40225
Grainger
1
$207.45
Roxul High Temperature Insulation: Board, Mineral Wool, 4 in Thick, 24 in W, 4 ft Lg, Brown, 16 R-Value Model: 40225
Grainger
1

Jump to key moments of Insulation Board for Under Concrete

Vapor Barrier, Insulation foam board under slab diy Garage build EP 9
18:25
Vapor Barrier, Insulation foam board under slab diy Garage build EP 9
33.3K viewsApr 28, 2023
YouTubeSmart Easy DIY
The RIGHT WAY to Insulate Your Concrete Floor
7:29
The RIGHT WAY to Insulate Your Concrete Floor
535.4K viewsJan 19, 2021
YouTubeChallenged
Why Insulation Under a Concrete Slab?...Concrete Stub Walls
21:09
Why Insulation Under a Concrete Slab?...Concrete Stub Walls
91.9K viewsDec 16, 2024
YouTubeKens Karpentry
Garage Build # 11 - Under Slab Insulation, Insulating Concrete Slab
9:04
Garage Build # 11 - Under Slab Insulation, Insulating Concrete Slab
20.3K viewsFeb 15, 2023
YouTubeAppalachian DIY
Insulation for Under Slab and Radiant Floors - Prodex Total Under Concrete Insulation
0:34
Insulation for Under Slab and Radiant Floors - Prodex Total Under Concrete Insulation
17.8K viewsJun 7, 2021
YouTubeInsulation4Less
How to Insulate a Concrete Slab with Rigid Foam Board (DIY Guide)
0:13
How to Insulate a Concrete Slab with Rigid Foam Board (DIY Guide)
16.9K views11 months ago
YouTubeBuilder
How To Attach Rigid Foam Insulation To Concrete
11:44
How To Attach Rigid Foam Insulation To Concrete
1.1M viewsJan 28, 2013
YouTubeHouseImprovements
8:57
How to Insulate a Basement | This Old House
3.7M viewsNov 4, 2014
YouTubeThis Old House
6:36
Why Use RIGID Insulation board On basement walls
899.8K viewsJan 31, 2020
YouTubeConcord Carpenter | Tool Lab
5:15
Insulating and Sealing Existing Concrete Slabs (AVOID Moisture Issues)
128.4K viewsFeb 17, 2024
YouTubeASIRI Designs
6:27
Floating An Insulated Sub-Floor On Concrete Floor
123.9K viewsFeb 15, 2024
YouTubeConcord Carpenter | Tool Lab
18:23
INSULATION FOR A CONCRETE SLAB - Sand Blinding, DPM and PIR
53.4K viewsOct 2, 2024
YouTubeThe Restoration Couple
9:23
Insulating concrete floor. How to prepare to lay down foam board
78.1K viewsJul 4, 2021
YouTubeBarely Stable Farm
10:11
The Importance of Insulating Your Concrete Floor
16.8K viewsFeb 25, 2022
YouTubeChallenged
21:45
Slab-On-Grade INSULATED Foundation - Part 1
295.3K viewsDec 9, 2020
YouTubeMatt Risinger
2:26
How To Foam Insulation Board
541.2K viewsJul 20, 2012
YouTubeAsk the Builder
16:59
Essential steps for insulating your crawl space and under-slab | ROCKWOOL Comfortboard®
21.7K viewsJul 30, 2024
YouTubeROCKWOOL North America
17:42
Post Frame, Concrete Floor Perimeter Insulation #1052
101.6K viewsMar 22, 2021
YouTubeOutdoors With The Morgans
1:49
Slab-on-Grade Foundation With Concrete Stem Wall and Under Slab Insulation
415.8K viewsMar 10, 2021
YouTubeInternational Association of Certified Home Ins…
30:31
How we INSULATE under the floors (1920's Renovation Part 26)
540.2K viewsAug 13, 2021
YouTubeGosforth Handyman
13:40
Insulated Slab Foundation
250.2K viewsAug 24, 2021
YouTubeMatt Risinger
0:59
How to Coat and Protect Polystyrene Insulation Boards with Akona Foundation Coating Cement
16K viewsMay 21, 2021
YouTubeTCC Materials
6:25
Concrete Slab Insulation MISTAKE
37.2K viewsSep 18, 2022
YouTubeAsk the Builder
8:52
How to install Ceiling Insulation in a Basement or Crawlspace & why you should. R30, R21, R19, R13.
719.6K viewsMar 26, 2022
YouTubeC.L.S. ALL-IN-ONE
5:06
The Best Way To Fit Insulation & Close The Performance Gap | Kingspan Therma
109.9K viewsAug 16, 2024
YouTubeSkill Builder
41:43
Underfloor insulation retrofit full demo
131K viewsJun 22, 2022
YouTubeSteve Wardell
14:01
The expert guide to installing exterior rigid insulation | ROCKWOOL Comfortboard®
50.6K viewsJul 30, 2024
YouTubeROCKWOOL North America
10:06
DIY Insulated Subfloor Installation: Transform Your Concrete Floor!
8.5K viewsApr 21, 2024
YouTubeDIY Dudes
1:39
Step-by-step guide to installing Warmup Insulation Boards for your underfloor heating
13.3K viewsApr 13, 2021
YouTubeWarmup
See more

Shop insulation board for under concrete

Sponsored
About our ads
$37.57
Insulfoam R- 7.7 , 2-In X 4-Ft X 8-Ft Faced Expanded Polystyrene Board Insulation One_Size | 2X48X96 R-TECH
Lowe's
$37.57
Insulfoam R- 7.7 , 2-In X 4-Ft X 8-Ft Faced Expanded Polystyrene Board Insulation One_Size | 2X48X96 R-TECH
Lowe's
$31.14
Owens Corning FOAMULAR NGX F-150 R- 5 , 1-In X 4-Ft X 8-Ft Unfaced Polystyrene Board Insulation One_Size | 20WENGX
Lowe's
124
$31.14
Owens Corning FOAMULAR NGX F-150 R- 5 , 1-In X 4-Ft X 8-Ft Unfaced Polystyrene Board Insulation One_Size | 20WENGX
Lowe's
124
$27.41
Lowe's Rmax Thermasheath R- 6 , 1-In X 8-Ft X 4-Ft Faced Polyisocyanurate Board Insulation One_Size | ISISORMATS143096
Lowe's
$27.41
Lowe's Rmax Thermasheath R- 6 , 1-In X 8-Ft X 4-Ft Faced Polyisocyanurate Board Insulation One_Size | ISISORMATS143096
Lowe's
$37.57
Perma "R" Products R- 7.8 , 2-In X 4-Ft X 8-Ft Faced Polystyrene Board Insulation One_Size | 78920
Lowe's
54
$37.57
Perma "R" Products R- 7.8 , 2-In X 4-Ft X 8-Ft Faced Polystyrene Board Insulation One_Size | 78920
Lowe's
54
$32.47
Kingspan Insulation R- 5 , 1-In X 4-Ft X 8-Ft Unfaced Foam Board Insulation One_Size | 100000048877
Lowe's
120
$32.47
Kingspan Insulation R- 5 , 1-In X 4-Ft X 8-Ft Unfaced Foam Board Insulation One_Size | 100000048877
Lowe's
120
$29.98
Johns Manville AP Foil R- 6.0 , 1.0-In X 4.0-Ft X 8.0-Ft Faced Polyisocyanurate Board Insulation One_Size | 90034729
Lowe's
288
$29.98
Johns Manville AP Foil R- 6.0 , 1.0-In X 4.0-Ft X 8.0-Ft Faced Polyisocyanurate Board Insulation One_Size | 90034729
Lowe's
288
$39.95
INSULATION MARKETPLACE Smartshield -3mm 16inx50ft Reflectiveinsulation Roll, Foam Core Radiant Barrier, Thermalinsulation Shield - Engineered Foil
Amazon.com
6K+
Free shipping
$39.95
INSULATION MARKETPLACE Smartshield -3mm 16inx50ft Reflectiveinsulation Roll, Foam Core Radiant Barrier, Thermalinsulation Shield - Engineered Foil
Amazon.com
6K+
$19.71
Kingspan Insulation R- 2.8 , 0.50-In X 4-Ft X 8-Ft Unfaced Foam Board Insulation One_Size | 100000048875
Lowe's
74
$19.71
Kingspan Insulation R- 2.8 , 0.50-In X 4-Ft X 8-Ft Unfaced Foam Board Insulation One_Size | 100000048875
Lowe's
74
$22.88
STYROFOAM Residential Sheathing R- 3.9 , 0.78-In X 4-Ft X 8-Ft Faced Polystyrene Board Insulation One_Size | 12031499
Lowe's
36
$22.88
STYROFOAM Residential Sheathing R- 3.9 , 0.78-In X 4-Ft X 8-Ft Faced Polystyrene Board Insulation One_Size | 12031499
Lowe's
36
$9.00
Polyiso Insulation Board
Green Building Supply
$9.00
Polyiso Insulation Board
Green Building Supply
$180.00
Havelock Wool Blown-In Insulation
Havelock Wool Insulation
2
$180.00
Havelock Wool Blown-In Insulation
Havelock Wool Insulation
2
$219.95
Smartshield -1.5mm 48" x200ft Reflective Insulation Roll 800 Sq. Ft., Foam Core Radiant Barrier, Thermal Insulation Shield - Foil / Foil
Amazon.com
101
Free shipping
$219.95
Smartshield -1.5mm 48" x200ft Reflective Insulation Roll 800 Sq. Ft., Foam Core Radiant Barrier, Thermal Insulation Shield - Foil / Foil
Amazon.com
101
$65.58
Kingspan Insulation Q250 Fanfold Siding Underlayment R- 0.9 , 0.2-In X 4-Ft X 48-Ft Faced Foam Board Insulation One_Size | 100077933
Lowe's
13
$65.58
Kingspan Insulation Q250 Fanfold Siding Underlayment R- 0.9 , 0.2-In X 4-Ft X 48-Ft Faced Foam Board Insulation One_Size | 100077933
Lowe's
13
$174.99
INSULATION MARKETPLACE Smartshield -3mm 48 inchx100ft Reflectiveinsulation Roll, Foam Core Radiant Barrier, Thermalinsulation Shield - Engineered Foil
Amazon.com
6K+
Free shipping
$174.99
INSULATION MARKETPLACE Smartshield -3mm 48 inchx100ft Reflectiveinsulation Roll, Foam Core Radiant Barrier, Thermalinsulation Shield - Engineered Foil
Amazon.com
6K+
$24.94
Wedi Pro | Sentinel Pro Foam Board By Wedi, 36 Inch X 60 Inch X 1/2 Inch, White - Floor & Decor | 101356657
Floor & Decor
$24.94
Wedi Pro | Sentinel Pro Foam Board By Wedi, 36 Inch X 60 Inch X 1/2 Inch, White - Floor & Decor | 101356657
Floor & Decor
$19.92
Johns Manville AP Foil R- 2.9 , 0.5-In X 4.0-Ft X 8.0-Ft Faced Polyisocyanurate Board Insulation One_Size | 90001013
Lowe's
287
$19.92
Johns Manville AP Foil R- 2.9 , 0.5-In X 4.0-Ft X 8.0-Ft Faced Polyisocyanurate Board Insulation One_Size | 90001013
Lowe's
287
$139.99
Owens Corning 703 Rigid Fiberglass Board 1" Qty 12
Amazon.com
22
Free shipping
$139.99
Owens Corning 703 Rigid Fiberglass Board 1" Qty 12
Amazon.com
22
$222.23
$269.99
SBI Micore-300 Mineral Fiber Insulation Board Pack Of Four AC02565B
eFireplaceStore
17% off
$222.23
$269.99
SBI Micore-300 Mineral Fiber Insulation Board Pack Of Four AC02565B
eFireplaceStore