CertainTeed InsulPure Fiberglass Insulation – R-13K, R-19K, R-38K – Various Sizes

Upgrade your home or building’s comfort and energy efficiency with CertainTeed InsulPure Fiberglass Insulation Batts. Engineered for superior thermal and acoustic performance, these batts feature advanced fiber technology that provides excellent insulating power while maintaining a soft, low-dust texture for easy handling. The Kraft-faced vapor barrier helps control moisture and enhances durability, making them ideal for walls, floors, attics, and ceilings.

Available in multiple R-values (R-13K, R-19K, and R-38K), InsulPure insulation ensures year-round temperature stability, reduced energy costs, and a quieter indoor environment — all while being formaldehyde-free for safer indoor air quality.

Key Features:

• Premium Thermal Performance:

  • R-13K, R-19K, and R-38K options provide effective resistance to heat flow for walls, floors, and attic applications.

• InsulPure™ Technology:

  • Made from high-quality fiberglass with advanced fiber design for consistent density and improved performance.

• Formaldehyde-Free Composition:

  • Contributes to healthier indoor air quality and meets GREENGUARD Gold Certification standards.

• Easy to Install:

  • Flexible batts fit standard framing cavities; pre-cut lengths make handling and fitting simple for DIYers and pros alike.

• Kraft-Faced Vapor Barrier:

  • Prevents unwanted moisture buildup while providing a smooth surface for stapling and installation.

• Excellent Acoustic Control:

  • Reduces sound transmission between rooms for a quieter home or building.

• Energy Efficient & Sustainable:

  • Helps reduce heating and cooling costs while supporting energy code compliance and environmental sustainability.

• Applications:

  • Suitable for use in interior and exterior walls, floors, attics, basements, and ceilings.

Available Options:

• R-13K Kraft-Faced Batts: 3.5” x 15” x 93”

• R-19K Kraft-Faced Batts: 6 1/4” x 16” x 96” 

• R-38K Kraft-Faced Batts: 12” x 24” x 48”