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Foam Board Insulation

Rigid foam board insulation is an innovative building and construction material that can significantly reduce a building's energy use and help control indoor temperature. Shop our selection of Rigid Insulation Browse Below and feel free to contact a member of our team on 786 224 0029 or via Live Chat. Read Our Guide to know more about Rigid Insulation.

Foam Board Insulation Categories

Owens Corning FOAMULAR 250 XPS Insulation Board - All Sizes
Owens Corning FOAMULAR 250 XPS Insulation Board - All Sizes 1 in Owens Corning
Vendor
Owens Corning
Regular price
from $30.39
Sale price
from $30.39
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RMax Thermasheath 4ft x 8ft Polyiso Rigid Foam Insulation Board - All Sizes
RMax Thermasheath 3 4ft x 8ft Polyiso Rigid Foam Insulation Board - All Sizes Rigid Insulation
Vendor
R-Max
Regular price
from $952.51
Sale price
from $952.51
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per 
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Owens Corning FOAMULAR 150 XPS 4ft x 8ft Insulation Board - All Sizes
Owens Corning FOAMULAR 150 XPS 4ft x 8ft Insulation Board - All Sizes 1 in Owens Corning
Vendor
Owens Corning
Regular price
from $25.32
Sale price
from $25.32
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per 
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Dow Thermax Sheathing 4' x 8' Polyiso (All Sizes)
Dow Thermax Sheathing 4' x 8' Polyiso (All Sizes) Polyiso Thermax Sheathing
Vendor
Dow
Regular price
from $35.75
Sale price
from $35.75
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Rmax ECOMAXci FR 4ft x 8ft - All Thicknesses
Rmax ECOMAXci FR 4ft x 8ft - All Thicknesses RMax (Polyiso)
Vendor
R-Max
Regular price
from $1,452.00
Sale price
from $1,452.00
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Dow XPS 250 Blue Board - All Sizes
Dow XPS 250 Blue Board - All Sizes XPS Blue Board
Vendor
Dow
Regular price
from $34.09
Sale price
from $34.09
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per 
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Owens Corning FOAMULAR InsulPink-Z (XPS) Insulation Board - All Sizes
Owens Corning FOAMULAR InsulPink-Z (XPS) Insulation Board - All Sizes Owens Corning
Vendor
Owens Corning
Regular price
from $26.59
Sale price
from $26.59
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per 
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Dow XPS 150 Blue Board - All Sizes
Dow XPS 150 Blue Board - All Sizes XPS Blue Board
Vendor
Dow
Regular price
from $37.12
Sale price
from $37.12
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per 
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Hunter Panels Xci Foil Polyiso Panel 4ft x 8ft (All Sizes)
Hunter Xci Foil Polyiso Panel 4ft x 8ft (All Sizes) Shop By Product Brand
Vendor
Hunter Panels
Regular price
from $1,049.60
Sale price
from $1,049.60
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per 
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Hunter Panels Xci 286 Polyiso Rigid Insulation Panel 4ft x 8ft - All Sizes
Hunter Xci 286 Polyiso Rigid Insulation Panel 4ft x 8ft - All Sizes Shop By Product Brand
Vendor
Hunter Panels
Regular price
from $1,326.38
Sale price
from $1,326.38
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per 
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Rmax Ultra Max HD High Density CoverBoard 4ft x 8ft x 0.5 in
Rmax Ultra Max HD High Density CoverBoard  4ft x 8ft x 0.5 in Insulation Boards
Vendor
R-Max
Regular price
$1,081.86
Sale price
$1,081.86
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Rmax Recover Board 4ft x 8ft - All Thicknesses
Rmax Recover Board 4ft x 8ft - All Thicknesses Insulation Boards
Vendor
R-Max
Regular price
from $834.58
Sale price
from $834.58
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Rmax Thermaroof Plus 4ft x 8ft - All Thicknesses
Rmax Thermaroof Plus 4ft x 8ft - All Thicknesses Insulation Boards
Vendor
R-Max
Regular price
from $4,090.87
Sale price
from $4,090.87
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per 
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Rmax Ultra Max 4ft x 8ft - All Thicknesses
Rmax Ultra Max 4ft x 8ft - All Thicknesses Insulation Boards
Vendor
R-Max
Regular price
from $636.72
Sale price
from $636.72
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per 
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Rmax Multi Max 4ft x 8ft - All Thicknesses
Rmax Multi Max 4ft x 8ft - All Thicknesses Insulation Boards
Vendor
R-Max
Regular price
from $579.57
Sale price
from $579.57
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per 
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Hunter Panels Xci 286 Polyiso Rigid Insulation Panel 4in x 4ft x 8ft (12 Sheets)
Hunter Xci 286 Polyiso Rigid Insulation Panel 4in x 4ft x 8ft (12 Sheets) rigid board
Vendor
Hunter Panels
Regular price
$1,385.56
Sale price
$1,385.56
Regular price
$1,056.87
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per 
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Hunter Panels Xci Foil(Class A) Polyiso Rigid Insulation Panel 4in x 4ft x 8ft (12 Sheets)
Hunter Xci Foil(Class A) Polyiso Rigid Insulation Panel 4in x 4ft x 8ft (12 Sheets) rigid board
Vendor
Hunter Panels
Regular price
$1,348.52
Sale price
$1,348.52
Regular price
$1,082.31
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per 
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Hunter Panels Xci CG Polyiso Rigid Insulation Panel 4ft x 8ft - All Sizes
Hunter Xci CG Polyiso Rigid Insulation Panel 4ft x 8ft - All Sizes Hunter XCI CG Panels
Vendor
Hunter Panels
Regular price
from $1,060.56
Sale price
from $1,060.56
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Hunter Panels Xci Foil (Class A) Polyiso Rigid Insulation Panel 4ft x 8ft - All Sizes
Hunter Xci Foil (Class A) Polyiso Rigid Insulation Panel 4ft x 8ft - All Sizes Shop By Product Brand
Vendor
Hunter Panels
Regular price
from $1,290.09
Sale price
from $1,290.09
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per 
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Hunter Panels Xci Ply (5/8" Ply Attached) Polyiso Rigid Insulation Panel - All Sizes
Hunter Xci Ply (5/8
Vendor
Hunter Panels
Regular price
$0.00
Sale price
$0.00
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Kingspan GreenGuard Type IV 25 psi 4ft x 8ft XPS Insulation Board - All Sizes
Kingspan GreenGuard Type IV 25 psi 4ft x 8ft XPS Insulation Board - All Sizes Roof
Vendor
Kingspan
Regular price
from $622.29
Sale price
from $622.29
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H-Shield 8ft x 4 ft - All Thicknesses
H-Shield 8ft x 4 ft - All Thicknesses Insulation Boards
Vendor
Hunter Panels
Regular price
from $538.09
Sale price
from $538.09
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per 
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Tapered H-Shield 4ft x 4ft - All Thicknesses
Tapered H-Shield 4ft x 4ft - All Thicknesses Insulation Boards
Vendor
Hunter Panels
Regular price
$386.12
Sale price
$386.12
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H-Shield HD Roofing Insulation Panels - 4ft x 8ft x 1/2 In (45 Boards)
H-Shield HD Roofing Insulation Panels - 4ft x 8ft x 1/2 In (45 Boards) Insulation Boards
Vendor
Hunter Panels
Regular price
$1,076.19
Sale price
$1,076.19
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Hunter Panels XCI Ply Class A (5/8 Ply Attached) 4ft x 8ft - All Sizes
Hunter Panels XCI Ply Class A (5/8 Ply Attached) 4ft x 8ft - All Sizes Insulation
Vendor
Hunter Panels
Regular price
$0.00
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$0.00
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Hunter Panels XCI Ply Class A (3/4 Ply Attached) 4ft x 8ft - All Sizes
Hunter Panels XCI Ply Class A (3/4 Ply Attached) 4ft x 8ft - All Sizes Insulation
Vendor
Hunter Panels
Regular price
from $0.00
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from $0.00
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Hunter Panels XCI Concast 4ft x 8ft - All Sizes
Hunter Panels XCI Concast 4ft x 8ft - All Sizes Insulation
Vendor
Hunter Panels
Regular price
from $1,165.78
Sale price
from $1,165.78
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Hunter Panels XCI NB (7/16 OSB Attached) 4ft x 8ft - All Sizes
Hunter Panels XCI NB (7/16 OSB Attached) 4ft x 8ft - All Sizes Insulation
Vendor
Hunter Panels
Regular price
from $0.00
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from $0.00
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Hunter Panels XCI NB (5/8 OSB Attached) 4ft x 8ft - All Sizes
Hunter Panels XCI NB (5/8 OSB Attached) 4ft x 8ft - All Sizes Insulation
Vendor
Hunter Panels
Regular price
from $0.00
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from $0.00
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per 
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Hunter Panels XCI NB (5/8 PLY Attached) 4ft x 8ft - All Sizes
Hunter Panels XCI NB (5/8 PLY Attached) 4ft x 8ft - All Sizes Insulation
Vendor
Hunter Panels
Regular price
from $0.00
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from $0.00
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per 
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Hunter Panels XCI NB (3/4 PLY Attached) 4ft x 8ft - All Sizes
Hunter Panels XCI NB (3/4 PLY Attached) 4ft x 8ft - All Sizes Insulation
Vendor
Hunter Panels
Regular price
from $0.00
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from $0.00
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Kingspan Kooltherm K12 Internal Insulation Board 4ft x 8ft - All Thicknesses
Kingspan Kooltherm K12 Internal Insulation Board 4ft x 8ft - All Thicknesses Insulation Boards
Vendor
Kingspan
Regular price
from $3,011.18
Sale price
from $3,011.18
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Kooltherm K9 Internal Insulation Board 4ft x 7.5ft - All Thicknesses
Kooltherm K9 Internal Insulation Board 4ft x 7.5ft - All Thicknesses Insulation Boards
Vendor
Kingspan
Regular price
from $2,475.30
Sale price
from $2,475.30
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per 
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H-Shield Foil 8ft x 4 ft - All Thicknesses
H-Shield Foil 8ft x 4 ft - All Thicknesses Insulation Boards
Vendor
Hunter Panels
Regular price
$0.00
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$0.00
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When using rigid Insulation in residential and commercial properties the most common boards used would be Polyiso (polyisocyanurate), EPS or XPS. Each type of insulation board are very different and carry different R-values and compressive strength. So let's delve into the differences of each.


Polyiso

Polyiso is short for Polyisocyanurate and can also be called PIR for an even shorter version. Polyiso would be one of the best-performing insulation rigid foam insulation boards on the market today giving the highest R-values for the least thickness.

Polyiso insulation can be used in so many different locations and effectively can totally replace glass wool and mineral wool in almost every application. The most common places you will find Polyiso insulation would be stud walls, floors, cavity walls, roof spaces/attics, and external walls. However, we are seeing in the market today a rapid growth in popularity with Polyiso in the flat roofing sector on commercial buildings. Special cloth faced or glass tissue faced Polyiso is being used on high rise buildings when replacing the older asbestos roofing materials that were used in the ’80s. Polyiso boards are the architect's products of choice for this application. The reason being is first of all the insulation does not absorb moisture, it is strong and its high R-values per inch is currently in today's market best in class for the applications in which it is used.

Polyiso insulation can also be used whereby airtightness is required. Taping the joints and sealing the edges along with using airtight membranes will create an airtight home while maintaining a AAA rating for your homes insulation values.

If you wish to install this insulation in your stud walls it is easily cut with a box knife of a carpenter's handsaw. If you are using a handsaw it is a good idea if possible to cut the foil face on the insulation before you start to cut the insulation. This is not a necessity rather more of good practice as it will give you a much cleaner edge when you're done cutting. Make sure when measuring the openings in which the insulation will be getting installed into to allow for about 2-3mm  or ¼ “ wider than required so you get a nice snug fit. The tighter the fit the less chance you have of air leakage and small gaps can be worse than big holes as small gaps can cause a rushing of air effect. This method of installation is also used when working on attic floors, crawlspaces, basements, and external walls.


EPS

EPS insulation would be one of the least efficient rigid board insulations today. However, all is not lost as EPS has a high compressive strength and is great for carparks or floors that are carrying a little more weight than usual. Also, EPS insulation would be widely used in passive housing for the foundations. Insulating the foundations is vital to achieve a passive house rating and EPS is an excellent cost-effective method of insulating your foundations and the good characteristics of strength, light and cheap makes EPS your best friend when insulating your foundations.

Like Polyiso EPS is easy to cut with a box knife or hand saw. EPS insulation does not have a foil attached to it so no need to score the insulation first before cutting it with a handsaw. Be careful however around any naked flames. Fire and EPS get on very well and EPS will burn and will billow out black smoke so if it does go up in flames stay away. Do not breathe in the black smoke. If you take all the usual precautions when using EPS it will perform extremely well and will continue to do so with no depletion in performance over the duration of the life cycle of the building. Other insulations cannot boast such amazing lifetime performance.


XPS

Much like EPS in its appearance XPS is the big daddy of EPS. A foam board insulation such as Pink insulation foam FOAMULAR 250 XPS is stronger, just as light and far exceeds the compressive strength of its EPS counterpart. XPS foam also gives a higher r-value but of course, with all these fantastic additions to the insulation, there is a price difference. XPS would be in the region of 20-30% more expensive than EPS. However, XPS would be more widely used in the commercial/industrial insulation sector where compressive strength is a real requirement. Once again XPS like the other rigid board insulations is easy to cut and lightweight. XPS and EPS are closed-cell insulation and will not lose their insulation values over time, unlike Polyiso insulation which will deplete over circa 30 year period.

So what are the brands or who are the manufacturers of these insulation panels?

Polyiso: R-Max, Hunter, Owens Corning, Johns Manville, and Dow are just some of the biggest Poyiso brands in the US.


XPS: Pactiv, Dow, Johns Manville and Owens Corning all manufacture XPS insulation. Styrofoam insulation from Dow is one of the most recognizable insulation sheets on the market due to its famous blue color.