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Wall Insulation
Increase the overall comfort of your home with fiberglass wall insulation. It's thermal performance helps to maintain temperatures, reducing energy loss and energy costs while also reducing room-to-room sound transmission.
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Key Benefits
Reduced Noise
Reduce room-to-room sound transmission
Save Money
Save on your home’s heating and cooling bills
Year-Round Comfort
Maintain indoor temperatures in the winter and the summer
Get the Most from Your Wall Insulation

Exterior wall insulation can help protect your home from temperature extremes which ultimately can help reduce your heating and cooling costs. To gain the benefits of thermal performance, you'll need wall insulation with the right R-value

R-value is what indicates the thermal strength — it’s the insulation’s ability to resist heat flow. The greater the R-value the greater the insulating performance. R-value requirements are different based on your location. Colder climates will typically require a higher R-value for even greater thermal resistance. Use the energy code map to help determine R-value for your region. 



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Source: 2012 IECC

Browse Our Wall Insulation Products
Whether you’re insulating a new or existing home, Knauf offers a line of fiberglass wall insulation and more to help you gain your desired results.
EcoFill® Wx Blowing Wool
Designed for weatherizing and retrofitting existing buildings or new construction, providing consistent thermal performance.
Applications
Bag Net Weight
28.6 lbs
EcoRoll® Insulation
Quality thermal and acoustical insulation with ECOSE® Technology for attics, floors, walls, ceilings and more.
Thickness
3.5" - 10"
R-Value
R-11 - R-30
Widths
15" and 23"
ECOSEAL™ Plus Sealant
Water-based elastomeric sealant that fills joints, gaps and penetrations to prevent air infiltration.
Applications
Shelf Life
18 months
Coverage
2400 ft/bucket
Availability
Full Truckload Only
JetSpray™ Thermal Spray-On Insulation System
Provides premium thermal and acoustical performance solutions for exterior walls.
Applications
Bag Net Weight
32 lbs
Jet Stream® Max Premium Blowing Wool (Canada Only)
Premium insulation provides excellent thermal performance for new construction and existing buildings.
Applications
Bag Net Weight
14.5 kg
Jet Stream® Ultra Blowing Wool
Our flagship product providing excellent thermal performance for new construction and existing buildings.
Bag Net Weight
32 lbs
Black Acoustical Board
Apply this black mat board on walls or ceilings in places like restaurants or theaters where good acoustical performance is needed.
Applications
Thickness
1" - 2"
SAC
0.13 - 1.07
Density
2.25 PCF - 3.0 PCF
Acoustical Smooth Board
Made for a range of acoustical panels and interior product applications to help minimize noise and improve personal comfort.
Applications
Thickness
3/4" - 2"
Width
24" - 61"
Length
48" - 121"
Acoustical Smooth Board with ECOSE® Technology
A formaldehyde-free option for interior product applications, helping minimize noise and improve personal comfort.
Applications
Thickness
3/4" - 2"
Width
24" - 61"
Length
48" - 121"
EcoBatt® Insulation
Quality engineered thermal and acoustical fiberglass batt insulation with innovative ECOSE® technology is ideal for floors, walls, ceilings and attics.
Thickness
2.5" - 13.75"
R-Value
R-8 - R-49
Width
11" - 24"
How to Choose the Right Insulation
Fiberglass Insulation
The smart choice to make spaces more comfortable and energy efficient.
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R-Value
The ability to resist heat flow — insulation's thermal resistance.
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Thermal Properties
Ability to enhance a thermal enclosure for comfort and efficiency.
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Insulating For Sound
Sound absorption characteristics, helping reduce noise transmission.
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