What are some of the top-rated foam board insulation?

One of our top-rated foam board insulation is the <a href="https://www.homedepot.com/p/SilveRboard-1-in-x-2-ft-x-48-in-R5-Radiant-Acoustic-Insulation-Kit-STC-19-12-sheets-96-sq-ft-SB12AKIT/205975329?emt=plpfaq_2410_foamboardinsulation" style="text-decoration: underline;">1 in. x 2 ft. x 48 in. R5 Radiant Acoustic Insulation Kit - STC 19 (12 sheets) - 96 sq. ft.</a>.

When should I use foam board insulation?

Foam board insulation is ideal for various applications, including <a href="https://www.homedepot.com/b/Building-Materials-Insulation-Foam-Board-Insulation/Exterior-Wall-Foundation/N-5yc1vZbaxxZ1z0uuau?emt=plpfaq_2410_foamboardinsulation" style="text-decoration: underline;">foundation walls</a>, <a href="https://www.homedepot.com/b/Building-Materials-Insulation-Foam-Board-Insulation/Attic/N-5yc1vZbaxxZ1z1bkhc?emt=plpfaq_2410_foamboardinsulation" style="text-decoration: underline;">attic floors</a>, <a href="https://www.homedepot.com/b/Building-Materials-Insulation-Foam-Board-Insulation/Crawlspace/N-5yc1vZbaxxZ1z1bkee?emt=plpfaq_2410_foamboardinsulation" style="text-decoration: underline;">crawl spaces</a>, and <a href="https://www.homedepot.com/b/Building-Materials-Insulation-Foam-Board-Insulation/Exterior-Wall/N-5yc1vZbaxxZ1z1bla8?emt=plpfaq_2410_foamboardinsulation" style="text-decoration: underline;">exterior walls</a>. It provides a moisture barrier, which is especially beneficial in areas where moisture is a concern.

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.

Foam Board Insulation - The Home Depot

Owens Corning
FOAMULAR NGX Insulating Sheathing 0.5 in. x 4 ft. x 8 ft. SE R-3 XPS Rigid Foam Board Insulation

(4.7 / 920)

Model# 13NGX

$2297

Buy 10 or more $20.67

Owens Corning
FOAMULAR NGX F-150 1 in. x 4 ft. x 8 ft. SSE R-5 XPS Rigid Foam Board Insulation

(4.7 / 920)

Model# 20WENGX

$3197

Buy 10 or more $28.77

Best Seller

Owens Corning
FOAMULAR NGX F-250 2 in. x 4 ft. x 8 ft. SSE R-10 XPS Rigid Foam Board Insulation

(4.7 / 920)

Model# 52DDNGX

$5997

Buy 10 or more $53.97

Henry
1 in. x 48 in. x 8 ft. R-3.85 Insulating Sheathing

(4.6 / 1686)

Model# 320821

$1598

Buy 10 or more $14.38

Owens Corning
FOAMULAR NGX 1 in. x 2 ft. x 2 ft. R-5 Project Panel XPS Rigid Foam Board Insulation

(4.7 / 920)

Model# 9WE

$997

3/4 in. x 1.25 ft. x 4 ft. R-2.65 Polystyrene Panel Insulation Sheathing (6-Pack)

(4.5 / 368)

Model# 150705

$1098

/package

Buy 10 or more $9.88

Top Rated

RMAX
Pro Select R-Matte Plus-3, 0.5 in. x 48 in. x 8 ft. R-3.2 ISO Rigid Foam Board Insulation

(4.6 / 931)

Model# 637902

$2788

Buy 10 or more $25.09

Owens Corning
FOAMULAR 1/4 in. x 4 ft. x 50 ft. R-1 Fanfold Rigid Foam Board Insulation Sheathing

(4.7 / 417)

Model# 21UM

$6497

Buy 10 or more $58.47

Henry
1/2 in. x 48 in. x 8 ft. R-1.93 EPS Rigid Foam Board Insulation

(4.6 / 1686)

Model# 320810

$938

Buy 10 or more $8.44

SilveRboard
1 in. x 2 ft. x 48 in. R5 Radiant Acoustic Insulation Kit - STC 19 (12 sheets) - 96 sq. ft.

(4.5 / 351)

Model# SB12AKIT

$9732

/package

Cellofoam
Poly Shield Fan-Fold .5 in. x 48 in. x 50 ft. Rigid Foam Board Laminated EPS Insulated Sheathing R-1.93

(5 / 2)

Model# B117621002507

$6698

/box

Owens Corning
FOAMULAR 150 1 in. x 4 ft. x 8 ft. R-5 Scored Square Edge Rigid Foam Board Insulation Sheathing

(4.7 / 1161)

Model# 20WE

$3197

Buy 10 or more $28.77

Foam Board Insulation

EPS Insulation

Polyiso Insulation

XPS Insulation

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Department

Product Thickness (in.)

0.01 in

0.08 in

0.25 in

0.5 in

0.63 in

0.75 in

1 in

1.0 in

1.5 in

1.75 in

2 in

2.38 in

2.5 in

2.6 in

3 in

4 in

Sheathing Type

XPS

EPS

ISO

Insulation Location

Basement

2x4 Wall

Attic

Garage

Exterior Sheathing

Exterior Wall Foundation

Interior Wall

Ceiling Insulation

2x6 Wall

Exterior Wall

Under Slab

Re-Siding

Crawlspace

2x8 Wall

Between Walls

Camper/RV/Trailer

Interior Ceiling

Roof

Water Tank

Wood Decking

Wood Siding

Floor

Metal Building

Insulation R-Value

R10

R7.5

R5

R3

R15

R1

R1.925

R1.93

R10.00

R12.5

R2.5

R2.65

R2.8875

R20

R3.0

R3.2

R3.858

R3.85

R5.775

Faced or Unfaced

Unfaced

Faced

Insulation Features

Mold Resistant

Formaldehyde Free

Soundproofing Insulation

Owens Corning
FOAMULAR NGX Insulating Sheathing 0.5 in. x 4 ft. x 8 ft. SE R-3 XPS Rigid Foam Board Insulation

Owens Corning
FOAMULAR NGX F-150 1 in. x 4 ft. x 8 ft. SSE R-5 XPS Rigid Foam Board Insulation

Owens Corning
FOAMULAR NGX F-250 2 in. x 4 ft. x 8 ft. SSE R-10 XPS Rigid Foam Board Insulation

Henry
1 in. x 48 in. x 8 ft. R-3.85 Insulating Sheathing

Owens Corning
FOAMULAR NGX 1 in. x 2 ft. x 2 ft. R-5 Project Panel XPS Rigid Foam Board Insulation

RMAX
Pro Select R-Matte Plus-3, 0.5 in. x 48 in. x 8 ft. R-3.2 ISO Rigid Foam Board Insulation

Owens Corning
FOAMULAR 1/4 in. x 4 ft. x 50 ft. R-1 Fanfold Rigid Foam Board Insulation Sheathing

Henry
1/2 in. x 48 in. x 8 ft. R-1.93 EPS Rigid Foam Board Insulation

SilveRboard
1 in. x 2 ft. x 48 in. R5 Radiant Acoustic Insulation Kit - STC 19 (12 sheets) - 96 sq. ft.

Cellofoam
Poly Shield Fan-Fold .5 in. x 48 in. x 50 ft. Rigid Foam Board Laminated EPS Insulated Sheathing R-1.93

Owens Corning
FOAMULAR 150 1 in. x 4 ft. x 8 ft. R-5 Scored Square Edge Rigid Foam Board Insulation Sheathing