Insulation for floor joists is insulation that is installed between the floor joists in a home. This insulation helps to keep the heat in the home from escaping through the floor. It is important to choose the right type of insulation for your home and to install it properly in order to achieve the best results.
18 Best Insulation For Floor Joists
Product Image | Product Name | Features | Price |
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Reflectix Staple Tab Double Bubble Foil Insulation Roll, 16" x 25' |
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Frost King 16"X1"X48" Insulation CF1 |
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Reflectix Foil Insulation – 4' x 25' Roll |
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Reflectix BP24010 24 in. x 10 ft. Foil Insulation |
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Reflectix Foil Insulation 16"X50' |
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John Manville 90007903 R38 24 x 48 in Unfaced Batt |
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Roxul 40260 Insulation,wool,foil Backing |
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Loctite Tite Foam – 12 oz |
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Unitherm Ceramic Fiber Insulation Blanket R-Value: 2.27, 6#Density, 2300 F, 1" x 24" x 25' |
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Roxul 40320 Insulation,wool,0 to 1200 degreesF |
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- Reflective insulation for use in a crawl space, attic, wall, metal buildings and post and frame structures
- Fiber free, environmentally safe, easy to install and lightweight
- Use for insulating, cushioning, and noise dampening
- Safe alternative – no gloves, face mask, or goggles needed
- Cut or rip to fit pipes and ducts, walls, and much more
- Product Type: Auto Accessory
- Package Quantity: 1
- Package Dimensions: 25.0 cms (L) x 25.0 cms (W) x 120.0 cms (H)
- Inhibits or eliminates condensation
- Nontoxic/no carcinogenic
- Does not require Protective clothing, goggles, or respirator
- Size: 16 x 50 ft.
- Coverage Area: 67 sq. ft.
- Great Gift Idea.
- Polymer-based foam that delivers premium durability and insulation that withstands the elements
- Expands to fill seal and insulate effectively around gaps and cracks up to 1 in. in size
- 1″x24″x25′
1. Reflectix Staple Tab Double Bubble Foil Insulation Roll, 16″ x 25′
- Reflective insulation for use in a crawl space, attic, wall, metal buildings and post and frame structures
- Fiber free, environmentally safe, easy to install and lightweight
- Air bubble lining resists transfer of heat
- Non-toxic
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Product Details
Specifications
Details | |
Assembled Depth (in) | 10.0 in |
Assembled Height (in) | 16.0 in |
Assembled Width (in) | 10.0 in |
Assembled Weight (lbs) | 3 lbs |
Package Weight | 26 |
Coverage Area | 33.33 ft² |
Length | 25 ft |
Width | 16 in |
Thickness | 0.3125 in |
Material | Reflective, Poly |
Package Type | Rolls |
R Value | 3.7 |
Recommended Fastener | Staples |
Recommended Safety Equipment | Safety Glasses |
Recommended Use | Attics, Crawl Spaces, Walls, Radiant Flooring Systems, Ducts, Pipes and Water Heaters. |
Type | Staple Tab Reflective Insulation |
Package Contents | 1 Roll |
2. Frost King 16″X1″X48″ Insulation CF1
- Use for insulating, cushioning, and noise dampening
- Safe alternative – no gloves, face mask, or goggles needed
- Cut or rip to fit pipes and ducts, walls, and much more
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Product Details
Specifications
Details | |
Self Sealing | No |
Maximum Pipe Size | 16 in. |
R Value | 4 |
Product Type | Pipe Wrap |
Length | 48 in. |
Thickness | 1 in. |
Flexibility | Flexible |
Minimum Temperature | 32 F |
Maximum Temperature | 100 F |
Color | Gray |
Wall Thickness | 1 in. |
Brand Name | Frost King |
3. Reflectix Foil Insulation – 4′ x 25′ Roll
- Product Type: Auto Accessory
- Package Quantity: 1
- Package Dimensions: 25.0 cms (L) x 25.0 cms (W) x 120.0 cms (H)
- Package Weight: 5.7 lbs
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Details | |
Assembled Depth (in) | 10.0 in |
Assembled Height (in) | 48.0 in |
Assembled Width (in) | 10.0 in |
Assembled Weight (lbs) | 6 lbs |
Package Weight | 26 |
4. Reflectix BP24010 24 in. x 10 ft. Foil Insulation
- Inhibits or eliminates condensation
- Nontoxic/no carcinogenic
- Does not require Protective clothing, goggles, or respirator
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Specifications
Details | |
Coverage Area | 20 ft² |
Length | 10 ft |
Width | 24 in |
Thickness | 0.312 in |
Material | Metalized polyester, polyethylene |
Package Type | Rolls |
R Value | 4.7 |
Recommended Fastener | Staples |
Recommended Safety Equipment | Safety goggles |
Recommended Use | hvac, attic, basement ceiling, hot water radiator, cathedral ceiling, crawl space, duct, garage door, knee wall, pipe wrap, radiant floor, wall, block wall, water heater, work shop |
Type | Reflective Insulation |
Package Contents | One roll of reflective insulation |
5. Reflectix Foil Insulation 16″X50′
- Size: 16 x 50 ft.
- Coverage Area: 67 sq. ft.
- Great Gift Idea.
- Satisfaction Ensured.
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Max Warehouse |
Product Details
Specifications
Details | |
Coverage Area | 67 sq ft |
Length | 50 ft. |
Width | 16 in. |
R Value | R-3.7 to R-21 |
Insulation Type | Radiant Barrier |
6. DRICORE 1 in. x 2 ft. x 2 ft. Aspen Insulated Panel
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Product Details
Specifications
Details | |
Exposure Durability | Interior |
Plywood Features | Tongue and Groove |
Shape | Square |
Actual Product Length (in.) | 23.25 |
Actual Product Thickness (in.) | 1 |
Actual Product Width (in.) | 23.25 |
Nominal Product Length (ft.) | 2 |
Nominal Product Thickness (in.) | 1 |
Nominal Product Width (ft.) | 2 |
7. SilveRboard 24 in. x 1 in. x 48 in. R5 Radiant Acoustic Insulation Kit – STC 19 …
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Product Details
Specifications
Details | |
Product Thickness (in.) | 1 in |
Insulation R-Value | R5 |
Faced or Unfaced | Faced |
Insulation Features | Formaldehyde Free,Vapor Retardant |
Insulation Type | Foam Board Insulation |
Interior/Exterior | Interior/Exterior |
Number of Pieces | 12 |
Pack Size | 12 |
Sheathing Size | 2 ft. x 1 in. x 48 in. |
Sheathing Type | EPS |
Cover Area Per Bag (sq. ft.) | 96 ft² |
Coverage Area (sq. ft.) | 96 ft² |
Product Length (ft.) | 2 ft |
Product Width (in.) | 48 in |
8. John Manville 90007903 R38 24 x 48 in Unfaced Batt
- 24″x48″
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Toolbox Supply |
Product Details
Specifications
Details | |
Coverage Area (Sq. Feet) | 64 |
Fits 2 x 4 Walls | No |
For Use in Electrical | No |
R-Value per Inch | 2.923 |
For Use in Duct | No |
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9. Ceramic Fiber Insulation,6 Cu. Ft./Lb., Size: 24 in
Product Details
10. Roxul 40260 Insulation,wool,foil Backing
- 1 in X 48 in X 24 in
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Zoro |
Product Details
Specifications
Details | |
Approx. R Value | 4 |
Thickness | 1 in |
Density | 8# |
Temp. Range | 0 Degrees F to 1200 Degrees F |
Length | 48 in |
11. Loctite Tite Foam – 12 oz
- Polymer-based foam that delivers premium durability and insulation that withstands the elements
- Expands to fill seal and insulate effectively around gaps and cracks up to 1 in. in size
- High density foam with a uniform cell structure for durability and overall insulation for your remodeling needs
- Superior flexibility withstands building and material movement without compromising its seal
- Strong adhesion and bonds to most building materials like wood concrete brick stone metal pvc and more
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Product Details
Specifications
Details | |
Units in Package | 1 |
Unit Size | 12 oz |
Directions | How to use? Shake vigorously for 30 seconds. Screw straw into valve. Squeeze trigger to dispense foam. 1. Always wear eye protection, gloves and proper work clothing when using foam. Cured foam is difficult to remove from skin, clothing and other substrates. 2. For optimum performance shake can intermittently during extended use. 3. Make sure surface is clean and free from dirt, dust, and other substances. Cover surfaces not intended to be foamed. 4. Dispense foam sparingly: Fill void by half to avoid overflows. 5. Mist with water to speed cure. 6. If necessary, cured foam can be trimmed with a knife after 1 hour. 7. Clean spills immediately with acetone. Refer to TDS for detailed instructions. |
Warnings | Danger! Extremely flammable. Vapor may cause flash fire. Vapor and spray mist harmful, overexpose may cause lung damage. May cause allergic respiratory and skin reaction. Contents under pressure. Read back panel carefully for other cautions. Contains polyurethane prepolymer, methylenediphenyldiisocyanate polymer, diphenylmethanediisocyanate, dimethylether and hydrocarbon propellant mixture. Do not use near sparks, heat or open flame. Vapors will accumulate readily and may ignite explosively. Ventilate area during use and until all vapors are gone. Do not smoke. Extinguish all ignition sources. If burned, dried foam may release hazardous decomposition products. Dried foam may be combustible if exposed to flame or temperatures above 240 degrees F. Avoid prolonged exposure to sunlight or heat from radiators, stoves, hot water and other heat sources that may cause bursting. Do not puncture, incinerate, burn or store above 120 degrees F. Do not discard empty can in garbage compactor. Gives off harmful vapor of solvents and isocyanates. Do not use if you have chronic lung or breathing problems, or if you have ever had a reaction to isocyanates. Use with adequate ventilation. Use appropriate respiratory protection when potential to exceed exposure limits exist. If you have breathing problems during use, leave the area and get fresh air. If symptoms develop or persist, call a doctor or obtain medical treatment; have this label with you. Eye and skin irritant. Avoid contact with eyes and skin. Prolonged or repeated skin contact may lead to sensitization and dermatitis. Wash hands after using. Do not swallow. Intentional misuse by deliberately concentrating and inhaling the contents may be harmful or fatal. First Aid: For eye contact flush with water for 15 minutes. Call a physician if irritation develops and persists. For skin contact, wipe off excess uncured foam with clean rag or paper towel immediately. Get medical attention if irritation develops and persists. If affected by inhalation, remove to fresh air and contact a physician. If swallowed, do not induce vomiting. Call a physician or Poison Control Center immediately. Keep out of reach of children. |
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12. Roxul 1-1/2″ x 48″ x 24″ Mineral Wool High Temperature Insulation, Density 8#
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13. Johns Manville R38 Unfaced Fiberglass Insulation Batt U361S
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Specifications
Details | |
Fits 2 x 6 Walls | No |
For Use in Doors | No |
For Use in Electrical | No |
For Use in Masonry | No |
R-Value per Inch | 2.923 |
14. Unitherm Ceramic Fiber Insulation Blanket R-Value: 2.27, 6#Density, 2300 F, 1″ x 24″ x 25′
- 1″x24″x25′
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Product Details
Specifications
Details | |
Wall Thickness (Inches) | 1 |
Fits Pipe Diameter (Inches) | 0 |
Application | HVAC |
Length (Feet) | 25 |
Cut to Length | Yes |
15. Rockwool Comfortbatt Stone Wool Insulation
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Product Details
Specifications
Details | |
Brand Name | Rockwool |
Length | 47 in. |
Facing | Unfaced |
R Value | R15 |
Product Type | Insulation |
Roll or Batt | Batt |
Thickness | 3.5 in. |
Number in Package | 1 pk |
Coverage Area | 59.7 sq ft |
Width | 15.25 in. |
16. Primesource – Roxul RXCB3523 R15 23×47 Bat Insulation
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Assembled Product Weight | 0 oz |
17. Rockwool Comfortbatt Stone Wool Insulation RXCB3023
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18. Roxul 40320 Insulation,wool,0 to 1200 degreesF
- 4 / 1 in
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Product Details
Specifications
Details | |
Approx. R Value | 4 |
Thickness | 1 in |
Density | 8# |
Temp. Range | 0 Degrees F to 1200 Degrees F |
Length | 48 in |
Conclusion
There are many benefits to insulating floor joists, including reducing energy costs, improving comfort, and reducing noise levels. However, there are a few things to keep in mind when insulating floor joists.
First, make sure that the insulation is the proper thickness for the joist width. Second, be sure to seal any gaps or cracks around the joists to prevent air leakage. Finally, consider using a vapor barrier to prevent moisture from damaging the insulation.