SKU: 75129483103

CertainTeed UltraTherm Fiberglass Blown-in Insulation

Sale price$34.19 Regular price$37.99
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Ships within 48 hours · Estimated delivery Jul 30 - Aug 4

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Description

CertainTeed UltraTherm Fiberglass Blown-in InsulationLoose fill insulation for use in attics. Must be installed using blowing machine. Can be installed for new construction or on top of existing insulation. Fiberglass insulation is naturally fire resistant without added chemicals, resists moisture, allows for a clean installation process with minimal dust. Reference the chart on the back of the bag for the amount or R value needed and its corresponding number of bags. Insulation Location : Walls and

Loose fill insulation for use in attics. Must be installed using blowing machine. Can be installed for new construction or on top of existing insulation. Fiberglass insulation is naturally fire-resistant without added chemicals, resists moisture, allows for a clean installation process with minimal dust. Reference the chart on the back of the bag for the amount or R-value needed and its corresponding number of bags.

Insulation Location    :    Walls and Attics
Material    :    Fiberglass
Suitable for    :    Use with Insulation Blower

 

Fire Resistance:

  • Fire Hazard Classification:
    • (UL 723, ASTM E 84)     
    • Max. Flame Spread Index; 25
    • Max. Smoke Dev. Index; 50
  • Noncombustibility:
    • (ASTM E 136)                
    • Meets requirements 

 

Physical/Chemical Properties: 

  • Thermal Resistance:
    • (ASTM C 518)
    • (ASTMC 687)
    • The stated R-values are achieved at weights and coverages specified in the table below when installed with pneumatic equipment in accordance with CertainTeed recommendations. 
  • Water Vapor Sorption:  (ASTM C 1104) ≤ 5%

 

Basic Use: UltraTherm Fiber Glass Blowing Insulation is used in residential construction as a thermal insulation. It is de signed for pneumatic installation in a horizontal open blow.  

Benefits: This product is noncombustible, non corrosive and odor free. In addition, UltraTherm won’t settle, contains no chemicals to cause mildew and fun gus growth, pro vides no sustenance for vermin, contains no asbestos, won’t rot or decay and won’t absorb moisture.

Composition and Materials: UltraTherm is a bindered loose-fill fiber glass insulation designed for pneumatic application.

Limitations: UltraTherm is de signed for use at ambient temperatures in interior, weather protected locations. Pneumatic equipment must have an effective shredding section, a uniform con trolled feed system and ad e quate material/air capabilities. This product should be kept dry during shipping, storage and installation.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 75129483103

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4.4 ★★★★★
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Verified Purchase
Paul Kalal
Alexandria, US
★★★★★ 5
Good wire
Size: 40 Feet
Teenage daughter wanted shiny aftermarket stuff, daughter got shiny aftermarket stuff.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 5, 2026
A
Verified Purchase
Avoncannon
Dallas, US
★★★★★ 4
Good quality wire, but thicker than expected
Size: 100 Feet
The wire itself is great quality — sturdy and well-insulated. I bought it to wire up several COB LED lights, but the individual wires and outer sheath were a bit too thick to fit into the press connectors I was using. It’ll work perfectly for other projects, just something to keep in mind if you’re using tight-fit connectors.
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Reviewed in the United States on October 15, 2025
G
Verified Purchase
Gordon Miller
Boise, US
★★★★★ 5
Reasonable Price
Size: 40 Feet
Seems to be good quality
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Reviewed in the United States on January 21, 2026
A
Verified Purchase
Antonio Jackson
Whiting, US
★★★★★ 5
On time
Size: 100 Feet
Work fine and on time
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Reviewed in the United States on May 16, 2026
B
Verified Purchase
Bradley
Fort Morgan, US
★★★★★ 5
Red, black, run right!
Size: 40 Feet
I got the TYUMEN 40FT 18 Gauge 2-Pin Red & Black Cable for hooking up LED strips, and it worked perfectly. The wire is sturdy, flexible, and easy to cut or connect, making installation quick and hassle-free. The 40-foot length is generous for longer runs, and the color-coded red and black makes it easy to keep track of positive and negative connections. Great for DIY electronics, lighting projects, or any small electrical hookup.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 12, 2025

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