High-Efficiency Batt Insulation for Existing Exterior Walls

Enhance Your Home with High-Efficiency Batt Insulation

What is High-Efficiency Batt Insulation?

  • Definition: High-efficiency insulation meets the 2015 International Energy Conservation Code, while ultra-efficient insulation is 25% more efficient.
  • Benefits: Improves thermal protection, reduces energy waste, enhances comfort, and minimizes noise.

Technical Description

  • Installation Standards: Follow RESNET Grade 1 quality installation standards.
  • Materials: Unfaced fiberglass batt insulation, properly installed to fill wall cavities.
  • Professional Installation: No gaps, voids, compression, or misalignment with air barriers; minimal thermal bridging.

Alternate Terms

  • Enhanced-Comfort Wall Insulation
  • Enhanced-Quiet Wall Insulation
  • Advanced Wall Insulation

High-efficiency wall insulation provides added thermal protection, reduces energy waste, and enhances comfort and quiet. Optimize your home’s performance to meet or exceed future codes.

Scope of Work

  • Application: Suitable for existing homes, additions, or gut rehabs.
  • Installation Steps:
    • Select appropriate size and R-value.
    • Remove old drywall and insulation.
    • Air seal gaps around penetrations.
    • Install batts to fill wall cavities uniformly.
    • Cut insulation to fit around wiring/piping.
    • Install new drywall.

Climate Considerations

  • Design for Specific Regions: Ensure exterior wall assemblies are designed for local hygrothermal regions, rain exposure, and interior climate.
  • Minimum Requirements: Follow minimum R-value requirements based on climate zone.

Compliance and Standards

  • Energy Codes: Meet or exceed insulation levels per IECC and IRC standards.
  • Air Barriers: Continuous air barriers required to align with insulation.

Additional Insulation Options

  • Blown Insulation: Fiberglass or cellulose installed via the “drill and fill” method.
  • Rigid Foam: Typically installed on the exterior during re-siding projects.
  • Spray Foam: Suitable for walls where drywall or exterior cladding is removed.

Compliance Requirements for Batt Insulation in Existing Exterior Walls

  • ENERGY STAR Single-Family New Homes (Version 3.0, Revision 11)
    • National Rater Field Checklist
    • Thermal Enclosure System: Fully-aligned air barriers (Footnotes 7, 9)
  • DOE Zero Energy Ready Home (Revision 07)
    • Exhibit 1: Certified under ENERGY STAR
    • Insulation must meet or exceed 2015 IECC levels
  • ASTM E1677-11
    • Standard for Air Barrier Material or System
  • IECC and IRC Insulation Requirements (2009-2021)
    • Continuous alignment with air barrier
    • Tested for air leakage (≤ 5 ACH50 in CZ 1-2, ≤ 3 ACH50 in CZ 3-8)
  • 2009-2021 IECC and IRC
    • Section R101.4.3 and Chapter 5 for alterations and repairs
  • 2009-2021 IRC
    • N1102.4.1.1: Continuous air barrier installation
  • NFPA 70: National Electrical Code
    • Article 394.1: Insulation should not touch or surround knob and tube wiring

For immediate service or consultation, you may contact us at Allied Emergency Services, INC.

Contact Information:

Phone: 1-800-792-0212
Email: Info@AlliedEmergencyServices.com
Location: Serving Illinois, Wisconsin, and Indiana with a focus on the greater Chicago area.

Disclaimer: This article is intended for informational purposes only. For professional advice, consult experts in the field.


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