What is the best foam board insulation for my project?

Choosing the right foam board depends on your needs. <a href="https://www.homedepot.com/b/Building-Materials-Insulation-Foam-Board-Insulation/EPS/N-5yc1vZbaxxZ1z0w1xr?emt=plpfaq_2511_foamboardinsulation" style="text-decoration: underline;">EPS</a> is affordable and offers decent insulation, while <a href="https://www.homedepot.com/b/Building-Materials-Insulation-Foam-Board-Insulation/XPS/N-5yc1vZbaxxZ1z0w1xo?emt=plpfaq_2511_foamboardinsulation" style="text-decoration: underline;">XPS</a> is denser and more water-resistant, making it ideal for below-grade applications. <a href="https://www.homedepot.com/b/Building-Materials-Insulation-Foam-Board-Insulation/ISO/N-5yc1vZbaxxZ1z0w1ut?emt=plpfaq_2511_foamboardinsulation" style="text-decoration: underline;">Polyiso</a> provides the highest R-value but can be more expensive.

What areas are best for foam board insulation?

Foam board insulation is an excellent choice for improving comfort and energy efficiency in your home. It performs especially well in spaces like <a href="https://www.homedepot.com/b/Building-Materials-Insulation-Foam-Board-Insulation/Vapor-Retardant/Interior-Wall/N-5yc1vZbaxxZ1z1biwnZ1z1bjdi?emt=plpfaq_2511_foamboardinsulation" style="text-decoration: underline;">interior wall</a>, <a href="https://www.homedepot.com/b/Building-Materials-Insulation-Foam-Board-Insulation/Vapor-Retardant/Ceiling-Insulation/N-5yc1vZbaxxZ1z1bjdiZ1z1cys8?emt=plpfaq_2511_foamboardinsulation" style="text-decoration: underline;">ceiling insulation</a>, and <a href="https://www.homedepot.com/b/Building-Materials-Insulation-Foam-Board-Insulation/Vapor-Retardant/Garage/N-5yc1vZbaxxZ1z0uui7Z1z1bjdi?emt=plpfaq_2511_foamboardinsulation" style="text-decoration: underline;">garage</a>. Its rigid design adds strength to walls and provides a reliable moisture barrier that helps protect your home year-round.

How do I cut foam board insulation?

You can cut foam board insulation using a sharp utility knife or a saw. For cleaner cuts, use a straightedge as a guide. Making slow, deliberate cuts is important to avoid crumbling the foam.

Vapor Retardant - Foam Board Insulation

Home

Building Materials

Insulation

Foam Board Insulation

Cement

Crawlspace

Re-Siding

4 Results

AmvicEnvirosheet H.D Insulation with drainage-2-3/8in. x 2ft. x 4ft.(8 Panels)-64 sq ft. - R10 - Ext/Int-Below/Above Grade

(4.5 / 129)

Model# AMDKIT001

$16088

SilveRboardR10 High Density 35 PSI Under Slab Insulation Kit - (10 Sheets) 2 in. x 2 ft. x 4 ft. - 80 sq. ft.

(5 / 3)

Model# SB35S200424KIT

$21964

SilveRboard0.625 in. x 48 in. x 24 in. 72 sq. ft. R-3 Graphite Radiant Barrier Wall Insulation Kit (9-Sheets/Kit)

(4.6 / 34)

Model# SBGXS062502PKIT

$6734

+more available options

R-12.65 Structural Insulated Sheathing Panel, 4 ft. x 8 ft. x 7/16 in. 2.75 in. EPS, Rigid Foam Board Insulation

Model# XU275/O716

$29900

Attic insulation improves home energy efficiency and comfort. Get started with a free consultation for stress-free and mess-free professional installation.

Learn More

Foam Board Insulation

Get It Fast

Category

Building Materials

Insulation

Foam Board Insulation

Product Thickness (in.)

Sheathing Type

Insulation Location

Faced or Unfaced

Insulation R-Value

Insulation Features

Pack Size

Eco Friendly

AmvicEnvirosheet H.D Insulation with drainage-2-3/8in. x 2ft. x 4ft.(8 Panels)-64 sq ft. - R10 - Ext/Int-Below/Above Grade

SilveRboardR10 High Density 35 PSI Under Slab Insulation Kit - (10 Sheets) 2 in. x 2 ft. x 4 ft. - 80 sq. ft.

SilveRboard0.625 in. x 48 in. x 24 in. 72 sq. ft. R-3 Graphite Radiant Barrier Wall Insulation Kit (9-Sheets/Kit)

R-12.65 Structural Insulated Sheathing Panel, 4 ft. x 8 ft. x 7/16 in. 2.75 in. EPS, Rigid Foam Board Insulation

Installation Services

Support

Resources

About Us

Our Other Sites

Foam Board Insulation

Get It Fast

Category

Product Thickness (in.)

Sheathing Type

Insulation Location

Faced or Unfaced

Insulation R-Value

Insulation Features

Pack Size

Eco Friendly

AmvicEnvirosheet H.​D Insulation with drainage-​2-​3/​8in.​ x 2ft.​ x 4ft.​(8 Panels)​-​64 sq ft.​ -​ R10 -​ Ext/​Int-​Below/​Above Grade

SilveRboardR10 High Density 35 PSI Under Slab Insulation Kit -​ (10 Sheets)​ 2 in.​ x 2 ft.​ x 4 ft.​ -​ 80 sq.​ ft.​

SilveRboard0.​625 in.​ x 48 in.​ x 24 in.​ 72 sq.​ ft.​ R-​3 Graphite Radiant Barrier Wall Insulation Kit (9-​Sheets/​Kit)​

R-​12.​65 Structural Insulated Sheathing Panel, 4 ft.​ x 8 ft.​ x 7/​16 in.​ 2.​75 in.​ EPS, Rigid Foam Board Insulation

Installation Services

Support

Resources

About Us

Our Other Sites

AmvicEnvirosheet H.D Insulation with drainage-2-3/8in. x 2ft. x 4ft.(8 Panels)-64 sq ft. - R10 - Ext/Int-Below/Above Grade

SilveRboardR10 High Density 35 PSI Under Slab Insulation Kit - (10 Sheets) 2 in. x 2 ft. x 4 ft. - 80 sq. ft.

SilveRboard0.625 in. x 48 in. x 24 in. 72 sq. ft. R-3 Graphite Radiant Barrier Wall Insulation Kit (9-Sheets/Kit)

R-12.65 Structural Insulated Sheathing Panel, 4 ft. x 8 ft. x 7/16 in. 2.75 in. EPS, Rigid Foam Board Insulation