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Foam Wall Board Insulation

7 results

Kingspan Insulation R- 5 , 1-in x 4-ft x 8-ft Unfaced Foam Board Insulation

Kingspan Insulation 

R- 5 , 1-in x 4-ft x 8-ft Unfaced Foam Board Insulation

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for pricing and availability

4.7
155
Kingspan Insulation R- 10 , 2-in x 4-ft x 8-ft Unfaced Foam Board Insulation

Kingspan Insulation 

R- 10 , 2-in x 4-ft x 8-ft Unfaced Foam Board Insulation

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for pricing and availability

4.6
169
Kingspan Insulation R- 2.8 , 0.50-in x 4-ft x 8-ft Unfaced Foam Board Insulation

Kingspan Insulation 

R- 2.8 , 0.50-in x 4-ft x 8-ft Unfaced Foam Board Insulation

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for pricing and availability

4.5
106
GreenGuard R- 5 , 1-in x 2-ft x 2-ft Unfaced Foam Board Insulation
Energy Star Qualified

GreenGuard 

R- 5 , 1-in x 2-ft x 2-ft Unfaced Foam Board Insulation

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for pricing and availability

4.7
299
Kingspan Insulation R- 3.75 , 0.75-in x 4-ft x 8-ft Unfaced Foam Board Insulation

Kingspan Insulation 

R- 3.75 , 0.75-in x 4-ft x 8-ft Unfaced Foam Board Insulation

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for pricing and availability

4.5
58
Kingspan Insulation Q250 Fanfold Siding Underlayment R- 0.9 , 0.2-in x 4-ft x 48-ft Faced Foam Board Insulation

Kingspan Insulation 

Q250 Fanfold Siding Underlayment R- 0.9 , 0.2-in x 4-ft x 48-ft Faced Foam Board Insulation

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for pricing and availability

4.6
38
Kingspan Insulation GreenGuard Unfaced XPS Foam Board Insulation R- 7.5 , 1.5-in x 4-ft x 8-ft Unfaced Foam Board Insulation

Kingspan Insulation 

GreenGuard Unfaced XPS Foam Board Insulation R- 7.5 , 1.5-in x 4-ft x 8-ft Unfaced Foam Board Insulation

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for pricing and availability

4.8
5

Related Searches

Related Products

Rigid Board Insulation R- 5 , 1.125-in x 4-ft x 2-ft Faced Polystyrene Board Insulation

SilveRboard   Rigid Board Insulation R- 5 , 1.125-in x 4-ft x 2-ft Faced Polystyrene Board Insulation

SilveRboard -R5 graphite wall insulation kit -(11 sheets - 1.125in x 2ft. x 4ft) with a total surface area of 88 sq.ft SBGXS (SilveRboard graphite breathable exterior sheathing) foam is laminated with a reflective film on both sides increasing board strength and flexibility, reducing site damage and waste. The reflective laminated surfaces are micro perforated giving the panel high water vapor permeance greatly reducing the likelihood of trapped moisture through the increased drying potential. The laminated film helps improve job site efficiency and reduce labor install costs.

703 Series R- 8.7 , 2-in x 2-ft x 4-ft Faced Fiberglass with Sound Barrier Board Insulation

Owens Corning   703 Series R- 8.7 , 2-in x 2-ft x 4-ft Faced Fiberglass with Sound Barrier Board Insulation

Owens Corning® Types 703 Series® Fiberglas Insulation™ Boards are made of inorganic glass fibers with a thermosetting resin binder and formed into semi-rigid or rigid boards.

Unsheathed R- 10 , 2-in x 4-ft x 8-ft Unfaced Polystyrene Board Insulation

STYROFOAM   Unsheathed R- 10 , 2-in x 4-ft x 8-ft Unfaced Polystyrene Board Insulation

DuPont Styrofoam Brand Square Edge Extruded Polystyrene (XPS) Foam Insulation is an extruded polystyrene foam (XPS) insulation board that provides continuous insulation over steel stud or wood framing, in masonry unit cavity walls, and meets the needs of the commercial foundation and building floor slab needs. It can also be used for attics, foundations/slabs and craw spaces in residential applications.

R- 1.9 , 0.5-in x 2-ft x 4-ft Faced Expanded polystyrene Board Insulation

Insulfoam   R- 1.9 , 0.5-in x 2-ft x 4-ft Faced Expanded polystyrene Board Insulation

With the highest R-value per dollar over any other rigid insulation, consider Insulfoam Unfaced foam for your projects. Available in a wide range of sizes, Insulfoam’s rigid Unfaced foam can fit any roof, below-grade and wall insulation project needs.

Residential Sheathing Square Edge R- 3 , 0.55-in x 4-ft x 8-ft Faced Polystyrene with Sound Barrier Board Insulation

STYROFOAM   Residential Sheathing Square Edge R- 3 , 0.55-in x 4-ft x 8-ft Faced Polystyrene with Sound Barrier Board Insulation

Styrofoam Brand Residential Sheathing adds up to an investment that will pay for itself in just a few years, and continue to provide value for years to come. Using Residential Sheathing could lead to fewer callbacks resulting in an enhanced reputation for builders. Extruded polystyrene foam insulation like Residential Sheathing is inherently resistant to moisture, which can wreak havoc on other building materials. Moisture can compromise the performance of cavity insulation and damage drywall, wood framing and OSB or plywood sheathing.

R- 3.85 , 1-in x 2-ft x 4-ft Faced Polystyrene Board Insulation

Insulfoam   R- 3.85 , 1-in x 2-ft x 4-ft Faced Polystyrene Board Insulation

With the highest R-value per dollar over any other rigid insulation, consider Insulfoam Unfaced foam for your projects. Available in a wide range of sizes, Insulfoam’s rigid Unfaced foam can fit any roof, below-grade and wall insulation project needs.

Board Insulation for Walls, Foundations and Building Projects 


Board insulation adds thermal resistance to walls, foundations, crawlspaces, roofs and other building assemblies. Rigid panels come in different materials, thicknesses and R-values, so the right choice depends on project location and code requirements. At Lowe’s, we offer board insulation options for residential and commercial construction, repair and remodeling projects.


Benefits of Board Insulation

  • Thermal Performance: Board insulation reduces heat transfer and supports indoor comfort when installed as part of a proper building assembly.
  • Moisture Resistance: Certain panels resist moisture, making them useful for basements, foundations and other moisture-prone areas.
  • Project Versatility: Board insulation works well in walls, roofs, crawlspaces, garages and foundation applications.
  • Rigid Panel Format: Rigid board insulation maintains consistent shape and coverage during installation.
  • Material Flexibility: Foam, fiberglass and mineral wool options let you match the insulation type to performance, code and installation needs.


Key Features of Board Insulation

  • Material Choices: Fiberglass, mineral wool and foam board insulation support different thermal, moisture and installation requirements.
  • R-Value and Thickness Options: Multiple R-values, widths and panel thicknesses help match insulation to the project area.
  • Moisture-Related Features: Options include water-resistant board insulation, mold-resistant board insulation, and standard faced or unfaced panels.
  • Wall and Foundation Compatibility: Board insulation panels fit 2-by-4 and 2-by-6 wall construction as well as foundation and basement projects.
  • Specialty Features: Some panels include sound-barrier or fire-resistant features when designed for those applications.


How to Choose Board Insulation

  • Determine R-Value Needs: Select insulation with thermal performance recommended for your climate, wall type and project location.
  • Choose Application Area: Match panels to walls, foundations, crawlspaces, roofs or garage applications based on product specifications.
  • Compare Materials: Compare foam, fiberglass and mineral wool panels based on handling, moisture exposure and installation requirements.
  • Check Moisture Exposure: Choose water-resistant or mold-resistant options when the project area may face damp conditions.
  • Review Building Requirements: Confirm local codes, covering requirements and manufacturer instructions before installing board insulation.


Board insulation supports comfort and energy performance when you match it to the space, R-value and installation requirements. Compare materials, thicknesses and moisture-related features before purchasing. Shop insulation and accessories at Lowe’s to find panels for your next building project.