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Crawl Space Insulation

At Insulation4US, we offer a wide range of crawl space insulation products that are designed to keep your home warm in the winter and cool in the summer. We stock products from the leading manufacturers, so you can be sure you are getting a high quality product. We also offer free shipping on all eligible orders, so you can be sure you are getting value for money. Browse below and find the perfect crawl space insulation for your project.
Owens Corning R-15 UnFaced Fiberglass Insulation Batts - All Sizes
Owens Corning R-15 UnFaced Fiberglass Insulation Batts - All Sizes 3.5 in. x 15 in. x 105 in. (5 Bags) Owens Corning
Vendor
Owens Corning
Regular price
from $416.54
Sale price
from $416.54
Regular price
Unit price
per 
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Owens Corning R-21 Un-Faced Fiberglass Insulation Batts - All Sizes
Owens Corning R-21 Un-Faced Fiberglass Insulation Batts - All Sizes 6 in. x 16 in. x 96 in. (5 Bags) Owens Corning
Vendor
Owens Corning
Regular price
from $386.52
Sale price
from $386.52
Regular price
Unit price
per 
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Knauf Ecobatt R-49 Unfaced Fiberglass Insulation Batts - All Sizes
Knauf Ecobatt R-49 Unfaced Fiberglass Insulation Batts - All Sizes Batts
Vendor
Knauf
Regular price
from $280.55
Sale price
from $280.55
Regular price
$0.00
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per 
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Knauf Ecobatt R-21 HD Unfaced Fiberglass Insulation Batts - All Sizes
Knauf Ecobatt R-21 HD Unfaced Fiberglass Insulation Batts - All Sizes Batts
Vendor
Knauf
Regular price
from $453.35
Sale price
from $453.35
Regular price
$0.00
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per 
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Single Bubble White Foil Reflective Insulation Rolls - All Sizes
Single Bubble White Foil Reflective Insulation Rolls - All Sizes Single Bubble Wrap Insulation
Vendor
Insulation4US
Regular price
from $75.00
Sale price
from $75.00
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Unit price
per 
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Insulguard Heavy Duty Flatbond SBPP Insulation Rolls Folded (All Sizes)
Insulguard Heavy Duty Fabric Insulation Rolls Folded (All Sizes) Ceiling
Vendor
Insulguard
Regular price
from $110.84
Sale price
from $110.84
Regular price
Unit price
per 
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Owens Corning R-11 Kraft Faced Fiberglass Insulation Batts - All Sizes
Owens Corning R-11 Kraft Faced Fiberglass Insulation Batts - All Sizes Owens Corning
Vendor
Owens Corning
Regular price
from $403.25
Sale price
from $403.25
Regular price
Unit price
per 
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Knauf Ecobatt R-38 HD Kraft Faced Fiberglass Insulation Batts - All Sizes
Knauf Ecobatt R-38 HD Kraft Faced Fiberglass Insulation Batts - All Sizes Batts
Vendor
Knauf
Regular price
from $136.76
Sale price
from $136.76
Regular price
$0.00
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per 
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Knauf Ecobatt R-11 Unfaced Fiberglass Insulation Batts - All Sizes
Knauf Ecobatt R-11 Unfaced Fiberglass Insulation Batts - All Sizes Batts
Vendor
Knauf
Regular price
from $368.50
Sale price
from $368.50
Regular price
Unit price
per 
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HandiFoam Window & Door Straw Foam Sealant 12 OZ (340G)(12 cans per case)
HandiFoam Window & Door Straw Foam Sealant 12 OZ (340G)(12 cans per case) Canister Foam
Vendor
HandiFoam
Regular price
$67.60
Sale price
$67.60
Regular price
$0.00
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per 
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Owens Corning R-19 Kraft Faced 6.25 in. x 24 in. x 48 in. Fiberglass Insulation Sonobatt (5 Bags)
Owens Corning EcoTouch R19 Paperfaced Sonobatt 6.25 in x 24 in x 48 in Batts in Bag Insulation (5 Bags) Owens Corning
Vendor
Owens Corning
Regular price
$501.69
Sale price
$501.69
Regular price
Unit price
per 
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Viper CS 10 mils Crawl Space Class A Woven Reinforced Vapor Barrier - Full Range
Viper CS 10 mils Crawl Space Class A Woven Reinforced Vapor Barrier - Full Range
Vendor
Viper
Regular price
from $225.16
Sale price
from $225.16
Regular price
Unit price
per 
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Knauf Ecobatt R-30 HD Unfaced Fiberglass Insulation Batts - All Sizes
Knauf Ecobatt R-30 HD Unfaced Fiberglass Insulation Batts - All Sizes Batts
Vendor
Knauf
Regular price
from $320.01
Sale price
from $320.01
Regular price
$0.00
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per 
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Owens Corning R-13 Kraft Faced Fiberglass Insulation FastBatts - All Sizes
Owens Corning R-13 Kraft Faced Fiberglass Insulation FastBatts - All Sizes FastBatt
Vendor
Owens Corning
Regular price
from $429.64
Sale price
from $429.64
Regular price
Unit price
per 
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Rmax ECOMAXci FR 4ft x 8ft - All Thicknesses
Rmax ECOMAXci FR 4ft x 8ft - All Thicknesses RMax (Polyiso)
Vendor
R-Max
Regular price
from $1,544.06
Sale price
from $1,544.06
Regular price
$0.00
Unit price
per 
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Knauf Ecoroll R-11 Unfaced Fiberglass Insulation Roll - All sizes
Knauf Ecoroll R-11 Unfaced Fiberglass Insulation Roll - All sizes Roll
Vendor
Knauf
Regular price
from $0.00
Sale price
from $0.00
Regular price
Unit price
per 
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Knauf Ecobatt R-15 HD Unfaced Fiberglass Insulation Batts - All Sizes
Knauf Ecobatt R-15 HD Unfaced Fiberglass Insulation Batts - All Sizes Batts
Vendor
Knauf
Regular price
from $430.30
Sale price
from $430.30
Regular price
Unit price
per 
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Owens Corning R-19 Kraft Faced Fiberglass Continuous Roll Insulation - All Sizes
Owens Corning R-19 Kraft Faced Fiberglass Continuous Roll Insulation - All Sizes 6.25 in. x 15 in. x 470 in. (6 Rolls) Owens Corning Wood Framing Paperfaced
Vendor
Owens Corning
Regular price
from $238.03
Sale price
from $238.03
Regular price
Unit price
per 
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Great Stuff Pro Window & Door Insulating Foam 20 OZ
Great Stuff Pro Window & Door Insulating Foam 20 OZ Crawl Space
Vendor
Dow
Regular price
$16.51
Sale price
$16.51
Regular price
Unit price
per 
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Ecobatt R-8 Unfaced Fiberglass Insulation Batts - All Sizes
Ecobatt R-8 Unfaced Fiberglass Insulation Batts - All Sizes Batts
Vendor
Knauf
Regular price
from $429.47
Sale price
from $429.47
Regular price
Unit price
per 
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Owens Corning R-19 Unfaced Continuous Roll Insulation - All Sizes
Owens Corning R-19 Unfaced Continuous Roll Insulation - All Sizes 6.25 in. x 15 in. x 470 in. (6 Rolls) Owens Corning
Vendor
Owens Corning
Regular price
from $221.95
Sale price
from $221.95
Regular price
Unit price
per 
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Viper CS II 10 mils Crawl Space Class A Vapor Barrier - Full Range
Viper CS II 10 mils Crawl Space Class A Vapor Barrier - Full Range
Vendor
Viper
Regular price
$0.00
Sale price
$0.00
Regular price
Unit price
per 
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Knauf Ecobatt R-38 HD Unfaced Fiberglass Insulation Batts - All Sizes
Knauf Ecobatt R-38 HD Unfaced Fiberglass Insulation Batts - All Sizes Batts
Vendor
Knauf
Regular price
from $436.08
Sale price
from $436.08
Regular price
Unit price
per 
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Knauf Ecobatt R-25 Unfaced Fiberglass Insulation Batts - All Sizes
Knauf Ecobatt R-25 Unfaced Fiberglass Insulation Batts - All Sizes Batts
Vendor
Knauf
Regular price
from $346.10
Sale price
from $346.10
Regular price
Unit price
per 
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CertainTeed R19 Unfaced Batts - All Sizes
CertainTeed R19 Unfaced Batts - All Sizes CertainTeed
Vendor
CertainTeed
Regular price
from $63.10
Sale price
from $63.10
Regular price
Unit price
per 
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CertainTeed R11 Unfaced Batts - All Sizes
CertainTeed R11 Unfaced Batts - All Sizes CertainTeed
Vendor
CertainTeed
Regular price
from $72.76
Sale price
from $72.76
Regular price
Unit price
per 
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Viper CS Crawl Space Class A Woven Reinforced Vapor Barrier - 12 ft x 100 ft x 16 mils
Viper CS Crawl Space Class A Woven Reinforced Vapor Barrier - 12 ft x 100 ft x 16 mils
Vendor
Viper
Regular price
from $492.47
Sale price
from $492.47
Regular price
Unit price
per 
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Knauf Ecobatt R-19 FSK-25 Fiberglass Insulation Batts - All Sizes
Knauf Ecobatt R-19 FSK-25 Fiberglass Insulation Batts - All Sizes Batts
Vendor
Knauf
Regular price
from $0.00
Sale price
from $0.00
Regular price
Unit price
per 
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Knauf Ecobatt R-19 Foil Faced Fiberglass Insulation Batts - All Sizes
Knauf Ecobatt R-19 Foil Faced Fiberglass Insulation Batts - All Sizes Batts
Vendor
Knauf
Regular price
from $411.39
Sale price
from $411.39
Regular price
Unit price
per 
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RMax TSX-8510 4ft x 8ft (All Sizes)
RMax TSX-8510 4ft x 8ft (All Sizes) RMax (Polyiso)
Vendor
R-Max
Regular price
from $2,067.90
Sale price
from $2,067.90
Regular price
$0.00
Unit price
per 
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Owens Corning R-15 Kraft Faced 3.5 in. x 15 in. x 105 in. Fiberglass Insulation FastBatts (5 Bags)
Owens Corning R-15 Kraft Faced 3.5 in. x 15 in. x 105 in. Fiberglass Insulation FastBatts 3.5 in. x 15 in. x 105 in. (5 Bags) FastBatt
Vendor
Owens Corning
Regular price
$527.21
Sale price
$527.21
Regular price
Unit price
per 
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CertainTeed R13 Paperfaced Batts - All Sizes
CertainTeed R13 Paperfaced Batts - All Sizes CertainTeed
Vendor
CertainTeed
Regular price
from $57.73
Sale price
from $57.73
Regular price
Unit price
per 
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CertainTeed R13 Unfaced Batts - All Sizes
CertainTeed R13 Unfaced Batts - All Sizes CertainTeed
Vendor
CertainTeed
Regular price
from $77.26
Sale price
from $77.26
Regular price
Unit price
per 
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Knauf Ecoroll R-11 Kraft Faced Fiberglass Insulation Roll - All sizes
Knauf Ecoroll R-11 Kraft Faced Fiberglass Insulation Roll - All sizes Roll
Vendor
Knauf
Regular price
from $279.43
Sale price
from $279.43
Regular price
Unit price
per 
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Owens Corning R-21 Kraft Faced 5.5 in. x 15 in. x 105 in. Fiberglass Insulation FastBatts (5 Bags)
Owens Corning R-21 Kraft Faced Fiberglass Insulation FastBatts - All Sizes FastBatt
Vendor
Owens Corning
Regular price
$561.79
Sale price
$561.79
Regular price
Unit price
per 
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Owens Corning R-20 Kraft Faced 5.5 in. x 15 in. x 384 in. Continuous Roll Insulation (6 Rolls)
Owens Corning EcoTouch R20 Paperfaced Roll 5.5 in x 15 in x 384 (6 Rolls) Owens Corning Wood Framing Paperfaced
Vendor
Owens Corning
Regular price
$309.20
Sale price
$309.20
Regular price
Unit price
per 
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Owens Corning R-19 Kraft Faced Fiberglass Insulation FastBatts - All Sizes
Owens Corning R-19 Kraft Faced Fiberglass Insulation FastBatts - All Sizes 6.25 in. x 15.25 in. x 93 in. (5 Bags) FastBatt
Vendor
Owens Corning
Regular price
from $308.83
Sale price
from $308.83
Regular price
Unit price
per 
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CertainTeed R38 Paperfaced Batts - All Sizes
CertainTeed R38 Paperfaced Batts - All Sizes CertainTeed
Vendor
CertainTeed
Regular price
from $65.01
Sale price
from $65.01
Regular price
Unit price
per 
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CertainTeed R30 Paperfaced Batts - All Sizes
CertainTeed R30 Paperfaced Batts - All Sizes CertainTeed
Vendor
CertainTeed
Regular price
from $61.88
Sale price
from $61.88
Regular price
Unit price
per 
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CertainTeed R19 Paperfaced Batts - All Sizes
CertainTeed R19 Paperfaced Batts - All Sizes CertainTeed
Vendor
CertainTeed
Regular price
from $0.00
Sale price
from $0.00
Regular price
Unit price
per 
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CertainTeed R11 Paperfaced Batts - All Sizes
CertainTeed R11 Paperfaced Batts - All Sizes CertainTeed
Vendor
CertainTeed
Regular price
from $45.35
Sale price
from $45.35
Regular price
Unit price
per 
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CertainTeed R21 Unfaced Batts - All Sizes
CertainTeed R21 Unfaced Batts - All Sizes CertainTeed
Vendor
CertainTeed
Regular price
from $125.50
Sale price
from $125.50
Regular price
Unit price
per 
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RMax Durasheath®3 4ft x 8ft Insulation Board - All Sizes
RMax Durasheath®3 4ft x 8ft Insulation Board - All Sizes Rigid Insulation
Vendor
R-Max
Regular price
from $6,008.29
Sale price
from $6,008.29
Regular price
$0.00
Unit price
per 
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HandiFoam Window & Door Straw Foam Sealant 24 OZ (680G)(12 cans per case)
HandiFoam Window & Door Straw Foam Sealant 24 OZ (680G)(12 cans per case) Shop By Product Brand
Vendor
HandiFoam
Regular price
$99.41
Sale price
$99.41
Regular price
$0.00
Unit price
per 
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Soudafoam Pro Windows and Doors 24oz
Soudafoam Pro Windows and Doors 24oz Crawl Space
Vendor
Insulation4US
Regular price
$18.56
Sale price
$18.56
Regular price
Unit price
per 
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Knauf Ecobatt R-21 Unfaced Fiberglass Insulation Batts 5.5 x 16 x 96 (Master Pack of 4)
Knauf Ecobatt R-21 Unfaced Fiberglass Insulation Batts 5.5 x 16 x 96 (Master Pack of 4) Batts
Vendor
Knauf
Regular price
from $0.00
Sale price
from $0.00
Regular price
Unit price
per 
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Kooltherm K9 Internal Insulation Board 4ft x 7.5ft - All Thicknesses
Kooltherm K9 Internal Insulation Board 4ft x 7.5ft - All Thicknesses Insulation Boards
Vendor
Kingspan
Regular price
from $3,166.58
Sale price
from $3,166.58
Regular price
Unit price
per 
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Crawl Space 18 In x 200 ft x 10 mils Class A Vapor Barrier Woven Reinforced
Crawl Space 18 In x 200 ft x 10 mils Class A Vapor Barrier Woven Reinforced Vapor Barrier
Vendor
Viper
Regular price
$0.00
Sale price
$0.00
Regular price
Unit price
per 
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Crawl space insulation is pivotal for maintaining an energy-efficient home. It prevents the infiltration of cold air during winter and repels heat in summer, offering a comfortable indoor environment and reducing energy bills. The Crawl Space Insulation category at Insulation4US offers a plethora of products, ensuring that every need is met effectively.

Fiberglass Insulation Batts

Fiberglass insulation batts are renowned for their ease of installation and excellent thermal resistance. Products from vendors like Owens Corning and Knauf are available in various sizes and R-values, catering to different insulation needs. Kraft faced options offer a vapor barrier, suitable for areas where moisture control is crucial, while unfaced options are apt for locations where additional vapor retarders are unnecessary.

Practical Uses:

Fiberglass batts are practical for insulating unfinished walls, floors, and ceilings, making them versatile for various sections of the crawl space.

 

Rockwool Insulation

Rockwool Comfortbatt products offer stone wool insulation known for its fire-resistance and sound-absorbing qualities. It is available in R15 and R30, providing options for varying insulation needs.

Practical Uses:

Rockwool is suitable for areas prone to fire hazards and places where noise reduction is a priority, such as near busy roads.

 

Polyiso Rigid Foam

Polyiso rigid foam like Dow Thermax Sheathing and RMax Thermasheath offers high R-value per inch, making it efficient for space-limited areas. This insulation type is known for its superior moisture and thermal resistance.

Practical Uses:

Polyiso is ideal for insulating walls and roofs in crawl spaces, particularly in areas with space constraints.

 

XPS Insulation Board

Dupont provides XPS Blue Board in various sizes, featuring exceptional moisture resistance and durability.

Practical Uses:

XPS boards are practical for insulating floors and walls of the crawl space, especially in moist environments.

 

Reflective Foil Insulation

Insulation4US offers Double and Single Bubble Reflective Foil Insulations, ideal for reflecting radiant heat, making them suitable for hot climates.

Practical Uses:

Reflective foil is effective for insulating roofs in the crawl space, reflecting away the radiant heat and keeping the space cool.

 

Eco-Friendly Options

For environmentally-conscious consumers, products like Insulguard Pointbond SBPP Insulation Roll and Knauf Ecobatt provide sustainable insulation solutions without compromising on quality.

Practical Uses:

Eco-friendly options are suitable for consumers looking to reduce their carbon footprint while insulating their crawl spaces effectively.

When selecting insulation, considering the crawl space’s specific needs, local climate, and any space constraints is crucial. Assessing these factors in light of the diverse options available at Insulation4US will facilitate an informed and rewarding decision.

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