Easy & Efficient Exterior Insulation Panels For Sale In Illinois

Continuous insulation made simple for exterior applications!

InSoFast Panels for exterior insulation are a fast and easiest way to install continuous insulation, rain screen and furring all in one step. Weather you are an experienced contractor or a first time DIY’er, InSoFast panels will are the right choice for your project.

Built-in rain screen on both sides of the panels control any moisture that penetrates the wall – the double rain screen provides double protection. The built-in insulated studs are not only a strong attachment point for siding, but also allows the panels to insulate continuously without thermal bridging. This means less insulation is required by code and will outperform cavity insulation.

InSoFast insulation panels are constructed with inorganic materials that will never mold, rot, rust or decay, making it the best choice for exterior insulation in Illinois!

Making Exterior Insulation Easy In Illinois

Why Settle for Foam Board? Upgrade to InSoFast Panels!
InSoFast Panels do more than insulate—they integrate framing, moisture control, and solid attachment points into one easy-to-install solution. Install exterior continuous insulation in one trip around the house, saving time and money!

 

 

Faster Installs, Lower Labor Costs
Skip the furring strips with our built in studs. Our
engineered panels lock together for a streamlined,
DIY-friendly installation using tools you already have
while saving time and labor.

Pre-Engineered Solution
InSoFast panels are the engineered solution for exterior insulation. The built-in studs eliminate the need for furring strips and the interlocking tongue and groove design saves time, reducing the amount of materials required. 

Moisture & Mold Resistant for Lasting Durability
100% made from breathable inorganic material, InSoFast panels will never mold, rot or rust. The panels also incorporate a rain screen on both sides of the panels to quickly drain any moisture that penetrates the wall.

Disaster Resistance
InSoFast Panels are designed for durability – even in the harshest conditions. They are not damaged by moisture, creating a durable wall assembly that can withstand extreme winds and the strongest storms.

Code-Compliant & High-Performance
With high performance continuous insulation, InSoFast Panels offer Class A Fire Ratings, exceptional holding power, and long-term durability that traditional foam board insulation can’t match.

Continuous Insulation
Designed to eliminate thermal bridging, InSoFast Panels provide continuous insulation that maximizes energy efficiency and home comfort.

For Homeowners

Energy Savings: Continuous insulation is 30% to 50% more effective than cavity insulation, saving on energy cost.
Durability: InSoFast Panels won’t rot, rust, or mold, ensuring long-lasting protection for your home.
Comfort: Enjoy consistent indoor temperatures in all rooms of your home and better air quality year round.
Stop Condensation: Exterior continuous insulation reduces the risk of condensation – the leading cause of mold in exterior walls.

For Contractors

Faster Installation: Fewer steps means less trips around the house, saving time and money.
Cost-Effective: Including install cost, InSoFast Panels are less expensive than traditional exterior insulation options.
Code-Compliant: Engineered to meet or exceed building codes for hassle-free approvals.

Build Smarter With InSoFast

The feature-rich InSoFast panels make exterior insulation easy. Whether you’re a
homeowner, contractor, or DIYer, InSoFast provides a faster, more efficient way to build better.

InSoFast EPS Panels

                           Benefits of EPS Foam:
    • EPS is an inert foam, meaning there is no blowing agent,
       making it environmentally friendly and allowing it to
       maintain its R-Value long-term unlike other types of
       foam
    • EPS is semi-permeable, allowing outward drying of  
       moisture
    • EPS is recyclable
    • Less expensive than other types of foam

Resources

InSoFast-UX-2.0-with-Electrical-e1562943093177-1.jpg
UX-2.0
Panel Thickness 2”
Panel R-Value R-8.5
Box Coverage 40sf
Qty Per Box 5
InSoFast EPS Insulation Panels
EXi-2.5
Panel Thickness 2.5”
Panel R-Value R-10.5
Box Coverage 40sf
Qty Per Box 5
InSoFast 3.75" insulation panels
MAX-3.75
Panel Thickness 3.75”
Panel R-Value R-15.9
Box Coverage 48sf
Qty Per Box 6
Exterior MAX 3.75 install
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Exterior MAX 3.75 install
Installing Siding
Inside & Outside Corners
Inset Windows With InSoFast
Exterior InSoFast Tutorial
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Learn More About Why InSoFast Simply Works In Illinois

siding with water
Blog Posts

Why Rainscreen Installation over Exterior Insulation Matters

Rainscreens matter. InSoFast panels feature built-in rainscreen technology, creating a continuous drainage plane that helps manage moisture and prevent trapped water behind the insulation. Reduces the risk of mold, rot, and structural damage, and ensures a longer-lasting, healthier wall system.

Read More »
Old house
Exteriors

Super Insulated Mountain Cabin

InSoFast panels retrofit old homes by installing over existing siding, adding continuous insulation without demolition. Their built-in attachment points and moisture channels improve energy efficiency and durability with minimal disruption.

Read More »

What Others Are Saying About Their Exterior Insulation

Get the perfect exterior insulation for your structure in Illinois!

When it comes to having the proper exterior insulation for your home, business, or structure in Illinois, we make it as easy and efficient as possible! With multiple ways to attach to exterior walls, easy ways to cut around for windows and doors, and a simple approach to installation, our insulation panels make building efficiency and comfort easier and more consistent.

Enjoy no drafts, limited thermal bridging, and stabilized indoor temperatures – allowing your HVAC system to run less and lowering your utility bills. Plus, better insulation means improved comfort, better noise control, and long-lasting moisture management as well!

Economy

Illinois has one of the most diverse economies in the United States, with major strengths in agriculture, manufacturing, finance, technology, and transportation. The state is a leading producer of corn and soybeans, while its manufacturing sector produces machinery, chemicals, and food products. Chicago, the nation’s third-largest city, is a global hub for finance, trade, and technology, hosting major stock exchanges like the CME Group. The city also drives the state’s service sector, including healthcare, higher education, and professional services. Illinois’ central location makes it a transportation powerhouse, with O’Hare International Airport and a vast rail and highway network fueling commerce.

History

Illinois was originally home to Indigenous peoples including the Illiniwek Confederation, Miami, and Potawatomi. French explorers established settlements in the 1600s, and the region became part of the United States after the Revolutionary War. Illinois entered the Union in 1818 as the 21st state. Its fertile prairies attracted farmers, while Chicago’s location on Lake Michigan and near major rivers made it a vital center of trade and industry. During the 19th century, Illinois played a key role in westward expansion, railroad development, and the abolition movement. Abraham Lincoln, who lived much of his life in Illinois, rose to the presidency from here. The state’s industrial base expanded in the late 19th and 20th centuries, drawing immigrants and fueling Chicago’s growth into a major metropolis. Today, Illinois is recognized for its cultural diversity, political influence, and economic strength.

Top Attractions

  • Willis Tower (Chicago)

  • Millennium Park & Cloud Gate (Chicago)

  • The Art Institute of Chicago

  • Abraham Lincoln Presidential Library and Museum (Springfield)

  • Navy Pier (Chicago)

  • Starved Rock State Park

  • Magnificent Mile (Chicago)

  • Cahokia Mounds State Historic Site

  • Shedd Aquarium (Chicago)

  • Illinois State Fair (Springfield)

We serve all cities in Illinois, including:

Chicago, Aurora, Naperville, Joliet, Rockford, Springfield, Elgin, Peoria, Champaign, Waukegan, Cicero, Bloomington, Arlington Heights, Evanston, Schaumburg, Decatur, Bolingbrook, Palatine, Skokie, Des Plaines, Orland Park, Tinley Park, Oak Lawn, Berwyn, Normal, Wheaton, Oak Park, Hoffman Estates, Downers Grove, Glenview, Belleville, Elmhurst, DeKalb, Moline, Lombard, Quincy, Rock Island, Urbana, Crystal Lake, Pekin, Danville, Carbondale, Edwardsville, Alton, Woodstock, Galesburg, East St. Louis, Kankakee, Batavia, Geneva and many more!

And all counties in Illinois, including:

Adams, Alexander, Bond, Boone, Brown, Bureau, Calhoun, Carroll, Cass, Champaign, Christian, Clark, Clay, Clinton, Coles, Cook, Crawford, Cumberland, DeKalb, DeWitt, Douglas, DuPage, Edgar, Edwards, Effingham, Fayette, Ford, Franklin, Fulton, Gallatin, Greene, Grundy, Hamilton, Hancock, Hardin, Henderson, Henry, Iroquois, Jackson, Jasper, Jefferson, Jersey, Jo Daviess, Johnson, Kane, Kankakee, Kendall, Knox, Lake, LaSalle, Lawrence, Lee, Livingston, Logan, Macon, Macoupin, Madison, Marion, Marshall, Mason, Massac, McDonough, McHenry, McLean, Menard, Mercer, Monroe, Montgomery, Morgan, Moultrie, Ogle, Peoria, Perry, Piatt, Pike, Pope, Pulaski, Putnam, Randolph, Richland, Rock Island, St. Clair, Saline, Sangamon, Schuyler, Scott, Shelby, Stark, Stephenson, Tazewell, Union, Vermilion, Wabash, Warren, Washington, Wayne, White, Whiteside, Will, Williamson, Winnebago, Woodford and other surrounding areas.

Best Methods For Insulating Exterior Walls