20 Best 4×8 Insulation Board [2022]

Are you looking for the best 4x8 Insulation Board? Based on expert reviews, we ranked them. We've listed our top-ranked picks, including the top-selling 4x8 Insulation Board.

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# Preview Product
1 SmartSHIELD -5mm 48'x50ft Reflective Foam Core Insulation roll, Cold and Heat Shield, Radiant... SmartSHIELD -5mm 48"x50ft Reflective Foam Core Insulation roll, Cold and Heat Shield, Radiant...
2 400sf (4x100) White Reflective Foam Insulation Vapor Barrier Warehouse Building 400sf (4x100) White Reflective Foam Insulation Vapor Barrier Warehouse Building
3 BXI Ceramic Fiber Thermal Insulation Board(2732F) - 12'' X 8'' X 0.4'', Pack of 1 - Inorganic -... BXI Ceramic Fiber Thermal Insulation Board(2732F) - 12'' X 8'' X 0.4'', Pack of 1 - Inorganic -...
4 1000 sqft Diamond Radiant Barrier Solar Attic Foil Reflective Insulation 4x250 by AES 1000 sqft Diamond Radiant Barrier Solar Attic Foil Reflective Insulation 4x250 by AES
5 Pink Insulation Foam 1/2' Thick (4 sq ft) Pink Insulation Foam 1/2" Thick (4 sq ft)
6 US Energy Products 48' x 100' White Double Bubble Reflective Foil Insulation Thermal Barrier R8 US Energy Products 48" x 100' White Double Bubble Reflective Foil Insulation Thermal Barrier R8
7 R-8 HVAC Duct Wrap Insulation Reflective 2 Sided Foam Core 4' x 25' (100 Sq Ft) R-8 HVAC Duct Wrap Insulation Reflective 2 Sided Foam Core 4' x 25' (100 Sq Ft)
8 US Energy Products 48' x 10' Double Bubble Reflective Foil Insulation Thermal Barrier R8 4' x 10' US Energy Products 48" x 10' Double Bubble Reflective Foil Insulation Thermal Barrier R8 4' x 10'
9 Ant NASA TECH White Reflective Foam Core 2 Car Garage Door Insulation Kit 18 Ft (Wide) x 8 Ft (HIGH)... Ant NASA TECH White Reflective Foam Core 2 Car Garage Door Insulation Kit 18 Ft (Wide) x 8 Ft...
10 STYROFOAM 2' x 2' Project Panels | 1' Thick, R-5 Extruded Polystyrene (XPS) Insulating Foam Board STYROFOAM 2' x 2' Project Panels | 1" Thick, R-5 Extruded Polystyrene (XPS) Insulating Foam Board
11 US Energy Products 2 Garage Door Insulation Kit (5 Panel) for Double 16x7 or 16x8 Garage Doors with... US Energy Products 2 Garage Door Insulation Kit (5 Panel) for Double 16x7 or 16x8 Garage Doors...
12 200sqft (4ft x 50ft) US Energy Products Reflective Insulation Shield, Heat Shield, Thermal... 200sqft (4ft x 50ft) US Energy Products Reflective Insulation Shield, Heat Shield, Thermal...
13 US Energy Products NASATECH 48' x 125' Single Bubble White Reflective Foil Insulation Vapor Barrier US Energy Products NASATECH 48" x 125' Single Bubble White Reflective Foil Insulation Vapor Barrier
14 Corning Owens Pink Insulation Foam 1/2' Thick (12 sq ft) (12 Pieces-1sqft Each) Corning Owens Pink Insulation Foam 1/2" Thick (12 sq ft) (12 Pieces-1sqft Each)
15 Reflective Foam Insulation Heat Shield Thermal Insulation Shield 24'x100ft Reflective Foam Insulation Heat Shield Thermal Insulation Shield 24"x100ft
16 ProRox SL 960 Rockwool, Roxul, Mineral Wool Insulation Board High Temperature 8# Density Choose Size ProRox SL 960 Rockwool, Roxul, Mineral Wool Insulation Board High Temperature 8# Density Choose Size
17 Double Bubble Reflective Foil Insulation: (48 in X 10 Ft Roll) Industrial Strength, Commercial... Double Bubble Reflective Foil Insulation: (48 in X 10 Ft Roll) Industrial Strength, Commercial...
18 Double Bubble Reflective Foil Insulation: (4 X 25 Ft Roll) Industrial Strength, Commercial Grade, No... Double Bubble Reflective Foil Insulation: (4 X 25 Ft Roll) Industrial Strength, Commercial Grade,...
19 Arctix Women's Essential Insulated Bib Overalls, Black, 4X Arctix Women's Essential Insulated Bib Overalls, Black, 4X
20 Wire Wrap Tool Strip Unwrap Tool for AWG 30 Cable Prototyping Wrapping Hand (1pc) Wire Wrap Tool Strip Unwrap Tool for AWG 30 Cable Prototyping Wrapping Hand (1pc)
SaleBestseller No. 1
SmartSHIELD -5mm 48"x50ft Reflective Foam Core Insulation roll, Cold and Heat Shield, Radiant...
  • EXTREMELY EFFECTIVE - reflects 95% of radiant energy, R -value up to 15.67 with one layer.
  • ALL IN ONE PRODUCT - Insulation (R15), Radiant Barrier, Vapor Barrier, Sound Barrier.
  • EXCELLENT LOOK - Clean white look, requires no painting, No additional insulation required.
  • SUPREME QUALITY - 5mm closed-cell polyethylene foam, laminated with Highly Reflective Engineered Foil on one side and a white polyethylene film on...
  • FIRE RATE - Fire rate Class 1 / Class A, NON TOXIC - will not irritate skin, eye or throat. Non allergic.
Bestseller No. 2
400sf (4x100) White Reflective Foam Insulation Vapor Barrier Warehouse Building
  • 1/8 inch thick
  • Non-Perforated White Finish
  • Prevents Condensation
  • Prevents 97% of radiant heat transfer
  • Seals around nails (no leak)
Bestseller No. 3
BXI Ceramic Fiber Thermal Insulation Board(2732F) - 12'' X 8'' X 0.4'', Pack of 1 - Inorganic -...
  • 【SPECIFICATION】: 12'' X 8'' X 0.4''(30cm x 20cm x 1cm); Weight: 0.68 pounds; High DENSITY: 600kg/m3; MATERIAL: Aluminosilicate
  • 【PARAMETERS】: | Fire Resistant (Class A1) | Long-term Service Temperature ~ 2552°F (1400°C) | Maximum Use Temperature: 2732°F (1500°C) |...
  • 【INORGANIC】: Compared with organic ceramic fiber products, which are very common in the market, inorganic boards have much higher R-value,...
  • 【ENDLESS APPLICATIONS】: Heat shields & thermal insulation for various heating treatment equipments like furnace, oven, stove, internal baffle of...
  • 【EASY TO USE】: Tough, Robust, Non toxic, Notable resistance against thermal shock & chemical attack. Easy to cut with a saw or sharp knife. Note:...
Bestseller No. 4
1000 sqft Diamond Radiant Barrier Solar Attic Foil Reflective Insulation 4x250 by AES
  • 1,000 SQUARE FEET PER ROLL: 4ft Wide by 250 feet in length. This gives you 1,000 square feet Double Sided Diamond perforated breathable radiant...
  • HIGHLY REFLECTIVE: Double-sided metailzed aluminum barrier. 99.97% Reflective E Value > Highly reflective to reflect radiant heat rather than absorb...
  • For New Construction or Retrofit: It is non-toxic and does not promote the growth of fungi or bacteria nor does it provide no nesting support for...
  • ASTM COMPLIANT Fire Rating: Meets the American Society for Testing and Materials (ASTM) Class 1 Class A fire and smoke safety requirements of most...
  • 120-DAY 100% MONEY BACK GUARANTEE. We offer a No Hassle 120-Day 100% Money Back Guarantee. If, within the four months, you are not completely...
Bestseller No. 5
Pink Insulation Foam 1/2" Thick (4 sq ft)
  • FOUR of 1ft by 1ft by 1/2" Insulation Pieces R-3.0. Great For Covering Small Places That Need More Insulation, Such As Walls, Around Windows, Or On...
  • Pink Panther Insulation Foam. This Insulation Is Moisture Resistant XPS Insulation Foam Board. It Does Not Crumble Into Small Pieces Like Styrofoam.
  • Wrapped In Construction Paper To Prevent Damage. This Insulation Foam Is Also Very Strong And Stiff, It Is Great For Crafting, Such As Covering With...
  • This Foam Is Very Easy To Cut With A Razor Or Hot Knife, So That You Can Shape It For Any Application.
  • Notice: The 1ft Dimensions Are Plus Or Minus A Quarter Of An Inch.
Bestseller No. 6
US Energy Products 48" x 100' White Double Bubble Reflective Foil Insulation Thermal Barrier R8
  • 4ft x 100ft White Double Bubble
  • Class 1 / Class A Fire Rated ASTM Certified
  • Made In USA / Super Fast Shipping / Ships Same Day
  • SAFETY: Non-toxic, non-carcinogenic, fiber-free, and does not support growth of mold, mildew or insects or rodents.
Bestseller No. 7
R-8 HVAC Duct Wrap Insulation Reflective 2 Sided Foam Core 4' x 25' (100 Sq Ft)
  • Duct insulation increases the energy efficiency of your HVAC system, saving you money.
  • Easy to install, .
  • Double Sided Reflective 1/4 thick foam core
  • Class 1 Class A ASTM Fire Rating
  • Thermal value is unaffected by humidity or moisture
Bestseller No. 8
US Energy Products 48" x 10' Double Bubble Reflective Foil Insulation Thermal Barrier R8 4' x 10'
  • Two layers of polyethylene industrialized air bubbles bonded between two layers of highly reflective metalized aluminum polyester film. Industrialized...
  • Non-toxic, non-carcinogenic, fiber-free, safe to handle and does not require protective clothing or respirators to install. Easy to install and...
  • Not affected by moisture or humidity. Inhibits condensation and does not promote the growth of fungi, mold or mildew. Does not promote nesting of...
  • Saves energy by reducing the stress on heating and cooling systems, keeping your home warmer in the winter, and cooler in the summer. It can reduce...
  • Made in USA / Ships from USA / Meets all International and USA Fire Codes / Nominal thickness is 1/4 inch.
Bestseller No. 9
Ant NASA TECH White Reflective Foam Core 2 Car Garage Door Insulation Kit 18 Ft (Wide) x 8 Ft (HIGH)...
  • White Reflective Foam Core 2 Car Garage Door Insulation Kit 18FT (WIDE) x 8FT (HIGH) R Value 8.0 Made in USA New and Improved Heavy Duty Double Sided...
Bestseller No. 10
STYROFOAM 2' x 2' Project Panels | 1" Thick, R-5 Extruded Polystyrene (XPS) Insulating Foam Board
  • VERSATILE PROJECT PANELS. Whether for professional jobs or DIY projects at home, these panels are great for attics, rim joist and other insulation...
  • RIGID & DURABLE. Extruded polystyrene (XPS) is a tightly packed closed-cell structure that's ideal for light structural needs where rigidity is called...
  • MEDIUM INSULATION. With a "resistance" value of R-5 at 1" inch thick these panels deliver exceptional insulation, helping both retain heat when needed...
  • OUR BRAND PROMISE. We celebrate craftsmanship to preserve pride and inspire the integrity of great work. With an ethic of developing GREAT products,...
  • SPECS. Includes: (1) 2' foot x 2' rigid Extruded Polystyrene (XPS) foam panel.
Bestseller No. 11
US Energy Products 2 Garage Door Insulation Kit (5 Panel) for Double 16x7 or 16x8 Garage Doors with...
  • NASA Tech Reflective White Foam Core Garage Door Insulation Kit 16L x 8H 5 panel
  • 16x8 Reflective Foam Core White Vinyl Finish
  • Two layers of highly reflective radiant barrier foil.
  • Blocks radiant heat by up to 95%
  • Double Sided GDK Tape
Bestseller No. 12
200sqft (4ft x 50ft) US Energy Products Reflective Insulation Shield, Heat Shield, Thermal...
  • Strong but lightweight, reflecting up to 97% of radiant energy
  • Fire rate Class 1 / Class A
  • Unaffected by humidity and moisture
  • NON TOXIC, WILL NOT IRRITATE SKIN, EYE OR THROAT
  • Made in USA
Bestseller No. 13
US Energy Products NASATECH 48" x 125' Single Bubble White Reflective Foil Insulation Vapor Barrier
  • One layers of polyethylene industrialized air bubbles bonded between two layers of highly reflective metalized aluminum / white polyester film....
  • Non-toxic, non-carcinogenic, fiber-free, safe to handle and does not require protective clothing or respirators to install. Easy to install and...
  • Not affected by moisture or humidity. Inhibits condensation and does not promote the growth of fungi, mold or mildew. Does not promote nesting of...
  • Saves energy by reducing the stress on heating and cooling systems, keeping your home warmer in the winter, and cooler in the summer. It can reduce...
  • Made in USA / Ships from USA / Meets all International and USA Fire Codes / Nominal thickness is 1/4 inch
Bestseller No. 14
Corning Owens Pink Insulation Foam 1/2" Thick (12 sq ft) (12 Pieces-1sqft Each)
  • Important: The 1ft Dimensions Are Plus Or Minus (+/-) A Quarter Of An Inch.
  • Corning Owens Insulation Foam Does Not Crumble Into Small Pieces Easily Like Regular Styrofoam.
  • Corning Owens Insulation Foam Is Very Strong And Stiff
  • Can Easily Be Cut Woth A Knife Or Razor
  • Great Foam For Crafting. Great For Covering Small Places That Need More Insulation, Such As Walls, Around Windows, Or On Floors.
Bestseller No. 15
Reflective Foam Insulation Heat Shield Thermal Insulation Shield 24"x100ft
  • One layer closed-cell foam bonded between two layers of highly reflective metalized aluminum polyester film. Industrialized strength, lightweight yet...
  • Non-toxic, non-carcinogenic, fiber-free, safe to handle and does not require protective clothing or respirators to install. Easy to install and...
  • Not affected by moisture or humidity. Inhibits condensation and does not promote the growth of fungi, mold or mildew. Does not promote nesting of...
  • Saves energy by reducing the stress on heating and cooling systems, keeping your home warmer in the winter, and cooler in the summer. It can reduce...
  • Dimensions: (24 Inches wide by 100 feet long ), 7MM (5/16 In) thick,
Bestseller No. 16
ProRox SL 960 Rockwool, Roxul, Mineral Wool Insulation Board High Temperature 8# Density Choose Size
  • Noise Insulation: High density and random fiber orientation trap sound waves and deadens vibration time. Perfect for minimizing noise from offices,...
  • Thermal Insulation: Reduces energy bills for heat. Rockwool has a R-value higher per inch than fiberglass insulation
  • Fire Resistant: Made of rock that is fire resistant. Properties in accordance with ASTM C553
  • Long Term Performance: Due to the durability of rock it has an unlimited lifetime.
  • Pack of 5 Boards 3" thick x 2' x 4'
Bestseller No. 17
Double Bubble Reflective Foil Insulation: (48 in X 10 Ft Roll) Industrial Strength, Commercial...
  • Two layers of polyethylene industrialized air bubbles bonded between two layers of highly reflective metalized aluminum polyester film. Industrialized...
  • Non-toxic, non-carcinogenic, fiber-free, safe to handle and does not require protective clothing or respirators to install. Easy to install and...
  • Not affected by moisture or humidity. Inhibits condensation and does not promote the growth of fungi, mold or mildew. Does not promote nesting of...
  • Saves energy by reducing the stress on heating and cooling systems, keeping your home warmer in the winter, and cooler in the summer. It can reduce...
  • Made in USA / Ships from USA / Meets all Intl and USA Fire Codes
Bestseller No. 18
Double Bubble Reflective Foil Insulation: (4 X 25 Ft Roll) Industrial Strength, Commercial Grade, No...
  • Two layers of polyethylene industrialized air bubbles bonded between two layers of highly reflective metalized aluminum polyester film. Industrialized...
  • Non-toxic, non-carcinogenic, fiber-free, safe to handle and does not require protective clothing or respirators to install. Easy to install and...
  • Not affected by moisture or humidity. Inhibits condensation and does not promote the growth of fungi, mold or mildew. Does not promote nesting of...
  • Saves energy by reducing the stress on heating and cooling systems, keeping your home warmer in the winter, and cooler in the summer. It can reduce...
  • Made in USA / Ships from USA / Meets all International and USA Fire Codes / Nominal thickness is 1/4 inch.
Bestseller No. 19
Arctix Women's Essential Insulated Bib Overalls, Black, 4X
  • INSEAM: Short (5'1" – 5'4"), Regular (5'5" – 5'8"), Tall (5'9" – 6'1")
  • 85 grams ThermaTech Insulation offers warmth in a lightweight, low bulk garment (keeps you warm at temperatures from -20° to +35°)
  • Adjustable comfort suspenders for the perfect fit with elasticized side gussets for maximum motion
  • 600 Denier Ballistic are used to reinforce the ankle, scuff and hem guards to hold up against daily wear and tear
  • Boot Zippers for easy on and off, along with convenient O-ring for keys/gloves/lift tickets; Boot Gaiters with Grippers form a seamless integration...
Bestseller No. 20
Wire Wrap Tool Strip Unwrap Tool for AWG 30 Cable Prototyping Wrapping Hand (1pc)
  • Three-in-one function: Wrap, Strip, Unwrap Tool, the selection tool is easy to use, durable and easy to save.
  • Wire Gauge: 30 AWG
  • Features: provides 1.5 to 2 turns of insulation
  • For use with 0.25''(0.63mm) square terminal on. 100''(2.54mm) center to center of the pins
  • Wire wrapping tool Ideal for bench use or tool kit in all service and repair applications

Having trouble finding a great 4x8 Insulation Board?

This problem is well understood by us because we have gone through the entire 4x8 Insulation Board research process ourselves, which is why we have put together a comprehensive list of the best 4x8 Insulation Boards available in the market today.

After hours of searching and using all the models on the market, we have found the best 4x8 Insulation Board for 2022. See our ranking below!

How Do You Buy The Best 4x8 Insulation Board?

Do you get stressed out thinking about shopping for a great 4x8 Insulation Board? Do doubts keep creeping into your mind?

We understand, because we’ve already gone through the whole process of researching 4x8 Insulation Board, which is why we have assembled a comprehensive list of the greatest 4x8 Insulation Board available in the current market. We’ve also come up with a list of questions that you probably have yourself.

John Harvards has done the best we can with our thoughts and recommendations, but it’s still crucial that you do thorough research on your own for 4x8 Insulation Board that you consider buying. Your questions might include the following:

  • Is it worth buying an 4x8 Insulation Board?
  • What benefits are there with buying an 4x8 Insulation Board?
  • What factors deserve consideration when shopping for an effective 4x8 Insulation Board?
  • Why is it crucial to invest in any 4x8 Insulation Board, much less the best one?
  • Which 4x8 Insulation Board are good in the current market?
  • Where can you find information like this about 4x8 Insulation Board?

We’re convinced that you likely have far more questions than just these regarding 4x8 Insulation Board, and the only real way to satisfy your need for knowledge is to get information from as many reputable online sources as you possibly can.

Potential sources can include buying guides for 4x8 Insulation Board, rating websites, word-of-mouth testimonials, online forums, and product reviews. Thorough and mindful research is crucial to making sure you get your hands on the best-possible 4x8 Insulation Board. Make sure that you are only using trustworthy and credible websites and sources.

John Harvards provides an 4x8 Insulation Board buying guide, and the information is totally objective and authentic. We employ both AI and big data in proofreading the collected information.

How did we create this buying guide? We did it using a custom-created selection of algorithms that lets us manifest a top-10 list of the best available 4x8 Insulation Board currently available on the market.

This technology we use to assemble our list depends on a variety of factors, including but not limited to the following:

  1. Brand Value: Every brand of 4x8 Insulation Board has a value all its own. Most brands offer some sort of unique selling proposition that’s supposed to bring something different to the table than their competitors.
  2. Features: What bells and whistles matter for an 4x8 Insulation Board?
  3. Specifications: How powerful they are can be measured.
  4. Product Value: This simply is how much bang for the buck you get from your 4x8 Insulation Board.
  5. Customer Ratings: Number ratings grade 4x8 Insulation Board objectively.
  6. Customer Reviews: Closely related to ratings, these paragraphs give you first-hand and detailed information from real-world users about their 4x8 Insulation Board.
  7. Product Quality: You don’t always get what you pay for with an 4x8 Insulation Board, sometimes less, and sometimes more.
  8. Product Reliability: How sturdy and durable an 4x8 Insulation Board is should be an indication of how long it will work out for you.

John Harvards always remembers that maintaining 4x8 Insulation Board information to stay current is a top priority, which is why we are constantly updating our websites. Learn more about us using online sources.

If you think that anything we present here regarding 4x8 Insulation Board is irrelevant, incorrect, misleading, or erroneous, then please let us know promptly!

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FAQ:

Q: What is the best insulation board?

A: Extruded polystyrene (XPS), also known as blueboard, acts as the best insulating foam board for below-grade applications, according to the U.S. Green Building Council. XPS offers greater moisture resistance than EPS, without the need for special films or coating to fend off moisture.

Q: What is rigid insulation board?

A: Commonly known as rigid board insulation, rigid board is a type of construction product that is utilized in situations that require an insulation solution capable of standing up to high temperatures.

Q: What is blue board insulation?

A: Dow STYROFOAM ™ Insulation (Blue Board) is a nonstructural, rigid board insulation manufactured of Extruded Polystyrene Foam (XPS). Blue Board can be used both on exterior and interior walls to give you a continuous insulation barrier that can increase effective R-value of the wall by up to 20%.

Q: What is rigid foam?

A: Rigid Foam Insulation: Rigid foam insulation consists of solid boards that have a radiant barrier on at least one side. This material is ideal for the attic ceiling, basement walls, and crawl space walls. Rigid foam is extremely durable, making it a great choice for unfinished spaces in the home.