Lowe's Home Improvement
FREE PARCEL SHIPPING on Qualifying Orders
Dow R5 Faced Polystyrene Foam Board Insulation (Common: 1-in x 8-ft x 4-ft; Actual: 0.937-in x 7.812-ft x 3.75-ft)

Dow R5 Faced Polystyrene Foam Board Insulation (Common: 1-in x 8-ft x 4-ft; Actual: 0.937-in x 7.812-ft x 3.75-ft)

Item #: 14546 |  Model #: 202631

5 / 5 4 Reviews

R5 Faced Polystyrene Foam Board Insulation (Common: 1-in x 8-ft x 4-ft; Actual: 0.937-in x 7.812-ft x 3.75-ft)

  • Helps manage energy loss and moisture
  • Lightweight and east to handle
  • Easy to cut
  • Reduces moisture in your home
  • Can be cut to fit 2x4 or 2x6 wall
Series Name N/A
Insulation Type Polystyrene
R-Value per Inch 5
Maximum R-Value 5
Actual Width (Feet) 7.812
Actual Length (Feet) 3.75
Actual Thickness (Inches) 0.937
Common Width (Feet) 8
Common Length (Feet) 4
Common Thickness (Inches) 1
Coverage Area (Sq. Feet) 32
Package Weight (lbs.) 5.6
Package Quantity 1
Faced/Unfaced Faced
Sound Barrier No
For Use in Attics Yes
For Use in Basements Yes
For Use in Ceilings Yes
For Use in Crawlspaces Yes
For Use in Doors No
For Use in Duct No
For Use in Electrical No
For Use in Floors No
For Use in Garage Doors No
For Use in Masonry Yes
For Use in Plumbing No
For Use in Vents No
For Use in Walls Yes
For Use in Windows No
Fits 2 x 4 Walls No
Fits 2 x 6 Walls No
ENERGY STAR Certified Yes
Vapor Retardant No
Formaldehyde Free Yes
Warranty 15-year limited
Community Q&A
  • Save Item
    Save Item Help
    Save an item to your
    • Lists to collect ideas and plan future projects.
    • Home Profile to organize and store details about your home.
  • Set a Reminder Save Item Help

    Set a Reminder and we'll send you an email when it's time to stock up on items you buy regularly or seasonally, like air filters, fertilizer or mulch. Use notes to record details (quantity, gift recipient, etc.).

  • Go to Your Account