This is a cache of https://www.owenscorning.com/en-us/insulation/products/procat. It is a snapshot of the page as it appeared on 2026-02-02T06:00:16.817+0000.
PROCAT® PROFESSIONAL LOOSEFILL INSULATION SYSTEM | Owens Corning Insulation
Owens Corning

ProCat® Professional Loosefill Insulation System

The New Standard of Fiberglass Insulation

ProCat® Professional Loosefill Insulation System is designed for contractors to use in open attic and closed cavity applications. This blown-in insulation can be used in both existing and new residential construction. Today, approximately 90%1 of existing single-family homes in the US are underinsulated. This loose-fill insulation system provides a fast, simple solution for great performance. Designed for remodeling contractors, this loosefill insulation is installed using the ProCat®, a professional-grade insulation blower. 

Key Features of this Blown-in Loosefill Insulation System:

  • Dense Mode Option: Enables installs in tight attic spaces
  • Open & Closed Cavity Use: For use in attics, walls, and between floors
  • Flexible Install Options: Suitable for remodels or new construction
  • Moisture & Mold Resistant: Does not absorb water or support mold growth
  • Simple to Use: The ProCat® machine insulation blowing machine is easy to maneuver 

Fast & Easy Installs: High-density option for insulation at the attic eaves with reduced blow-back

1 Evaluation of under-insulated single-family detached homes in the United States, ICF study commissioned by NAIMA, October 2024.
Download Brochure
Coverage Specifications

Certifications

Energy Star

Energy Star

UL Formaldehyde Free

UL Formaldehyde Free

UL Greenguard Gold

UL Greenguard Gold

Performance Attributes

ProCat® Professional Loosefill Insulation delivers dependable thermal and acoustic performance for residential applications. This blown-in insulation installs quickly with the ProCat® insulation blower, providing consistent coverage with virtually no settling. Its efficient loose-fill design helps reduce heat loss and sound transfer, supporting year-round comfort and energy savings. This blown-in loosefill insulation is considered non-combustible as tested to ASTM E136.

Acoustic performance icon

Acoustic Performance

Easy Installation icon

Easy Installation

Energy Efficiency icon

Energy Efficiency

Fire Resistance icon

Fire Resistance

Resources

This video highlights the ProCat® Professional Loosefill Insulation System in action, showcasing its ease of use and key performance benefits. It offers a quick overview for professionals looking to improve energy efficiency and streamline insulation installation with a reliable blown-in solution.

Product Focus: ProCat® Professional Loosefill Insulation System (no audio)
Product Focus: ProCat® Professional Loosefill Insulation System (no audio)

Technical Information

Property (Unit)ValueTest
Thermal resistance(See coverage charts)


ASTM C518 & ASTM C687

Surface Burning Characteristics
     flame spread / smoke developed
     flame spread / smoke developed

0/0
0/0

ASTM E841
Can/ULC S102.2

Critical Radiant Flux (W/cm2)

>0.12

ASTM E970
Combustion characteristicsNoncombustibleASTM E136
Water Vapor Sorption (by weight)

<5%

ASTM C1104/C1104M
Odor EmissionPassASTM C1304
Corrosion ResistancePassASTM C665, Part
13.8
Fungi ResistancePassASTM C1338
1. This standard is used to measure and describe the response of materials, products, or assemblies to heat and flame under controlled conditions, but does not by itself incorporate all factors required for fire-hazard or fire-risk assessment of the materials, products, or assemblies under actual fire conditions. However, the results of these tests may be used as elements of a fire risk assessment that takes into account all of the factors pertinent to an assessment of the fire hazard of a particular end use. Values are reported to the nearest five (5) rating.

Applications

ProCat® Loosefill Insulation is installed in open attic floors to improve energy efficiency and comfort, especially in homes that are underinsulated. It is also used in closed cavity spaces, such as walls and floors between levels, and can support consistent coverage and performance. In addition to thermal benefits, this blown-in fiberglass insulation supports HVAC system performance. Adequate attic insulation helps reduce thermal loss, maintain stable indoor temperatures, and reduce stress on HVAC equipment, particularly in changing climates such as the Midwest and Southwest. The ProCat® system offers HVAC contractors an opportunity to enhance home comfort, energy savings, and value during equipment upgrades.

  • Air Distribution
  • Air Distribution > Duct Insulation
  • Attics
  • Ceilings
  • Floors
  • Walls

Contact Us

Even though we’re a global company, we’re always ready to answer your questions. Call to speak with an Owens Corning representative.