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1989 Split-Foyer - Hanover, MD 21076

Hanover Maryland Energy Assessments
Hanover, MD, has a relatively low population density compared to other areas, offering a more spacious and less congested living environment​ (Maryland U.S. ZIP Code 5 Plus 4)​​ (​..

The reason this BGE Customer has Got the Audit

The main reason for the energy audit of the Hanover house was that the customer wanted to understand why their split-foyer home had hot and cold spots throughout.

General Profile - 1989 Hanover Split-Foyer

Neighborhood: Hanover, MD

Style: Single-Family Detached, Split-Foyer

Year Built: 1981-1990

Foundation Types: Conditioned Basement

Typical Homeowner Complaints: Hot and cold spots throughout the split-foyer home

Current Insulation Condition:

Attic: 8 inches, moderately insulated

Rim Joist: 2 inches, moderately insulated

Cantilevers: Front (6 inches), Rear (8 inches), moderately insulated

Common Insulation Challenges: Insufficient attic R-values, missing air sealing at various points

HVAC Ducts: Estimated leakage, need for proper sealing

Unique Features: Air Source Heat Pump (8.20 HSPF, 16 SEER), 50-Gallon Electric Water Heater

Homeowner Takeaways from this Hanover BGE Energy Audit

  • Rodent Infestation: Not detected
  • Crawl Space: Not applicable
  • Attic: Needs insulation improvements and air sealing throughout

energy audit hanover, md 21076

Long-Term Problems if Left Unchecked

  • Persistent hot and cold spots
  • Increased energy bills due to inefficiency
  • Ineffective heating and cooling, leading to higher HVAC wear and tear
Dampers on the outside of the home were ajar
Dampers on the outside of the home were ajar in two locations.
Insufficient attic R-values
Insufficient attic R-values, missing air sealing at various points
Seal and insulate attic hatches
Recommendations to seal and insulate the attic hatch.
missing air sealing at various points
Insufficient attic R-values, missing air sealing at various points
Air Source Heat Pump (8.20 HSPF, 16 SEER)
Air Source Heat Pump (8.20 HSPF, 16 SEER)
blower door test hanover, maryland 21076
Current leakage: 2130 CFM50

Recommendations for this Hanover homeowner included:

By implementing these recommendations—improving insulation, sealing air leaks and ducts, and enhancing ventilation—you will transform your Hanover split-foyer home into a more comfortable and energy-efficient haven. Addressing these issues will not only reduce your energy bills but also create a healthier, more sustainable living environment for your family..

energy audit and insulation hanover maryland

  • Air Sealing:

    • Current leakage: 2130 CFM50
    • Recommended reduction: 1704 CFM50
    • Benefits:
      • Increased Comfort: Reduces drafts and uneven temperatures, creating a more comfortable indoor environment.
      • Energy Savings: Decreases energy loss, leading to lower heating and cooling costs.
  • Insulation:

    • Attic: Increase to R-49
      • Benefits:
        • Improved Temperature Regulation: Better insulation helps maintain consistent indoor temperatures.
        • Reduced Energy Costs: More efficient insulation reduces the need for heating and cooling, cutting energy bills.
    • Rim Joist: Insulate with fiberglass batt
      • Benefits:
        • Enhanced Comfort: Improves the thermal boundary, reducing drafts and cold spots near the floor.
        • Energy Efficiency: Minimizes heat loss at the rim joist, enhancing overall home energy efficiency.
    • Cantilevers: Add high-density foam insulation
      • Benefits:
        • Eliminates Thermal Bypasses: Ensures insulation continuity, preventing hot and cold spots.
        • Improved Comfort: Reduces temperature fluctuations in the overhanging floors, enhancing comfort.
  • Ducts: Seal and insulate to improve airflow and efficiency

    • Benefits:
      • Improved Air Quality: Sealed ducts prevent contaminants from entering the HVAC system, improving indoor air quality.
      • Enhanced HVAC Efficiency: Properly insulated and sealed ducts reduce energy loss, making the heating and cooling system more efficient.
  • Water Heater: While no specific recommendations were made for temperature adjustment in this report, lowering the temperature to 120°F generally has the following benefits:

    • Benefits:
      • Energy Savings: Reduces the energy required to heat the water.
      • Safety: Lowers the risk of scalding, ensuring a safer home environment.
  • Ventilation: Install mechanical and local ventilation for improved air quality

    • Benefits:
      • Improved Indoor Air Quality: Ensures a steady supply of fresh air, reducing indoor air pollutants.
      • Energy Efficiency: Proper ventilation helps manage moisture levels and reduces the load on heating and cooling systems.

Potential Energy Savings with Improvements

  • Air Sealing:
    • Reduction in air leakage from 2130 CFM50 to 1704 CFM50
    • Estimated annual savings: $37.06
  • Attic Insulation:
    • Increase insulation to R-49
    • Estimated annual savings: $65.85
  • Rim Joist Insulation:
    • Insulate with fiberglass batt
    • Estimated annual savings: $13.53
  • Cantilever Insulation:
    • Add high-density foam insulation
    • Estimated annual savings: $5.72
  • Duct Insulation and Sealing:
    • Insulate and seal ducts
    • Estimated annual savings: $20.12
  • Water Heater Temperature Adjustment:
    • No specific savings estimated in the report, but generally expected to lower costs.

Potential Energy Savings with Improvements:

  • Air Sealing:
    • Reduction in air leakage from 3261 CFM50 to 2282 CFM50
    • Estimated annual savings: $38.97
  • Attic Insulation:
    • Increase insulation to R-49
    • Estimated annual savings: $38.42
  • Kneewalls Insulation:
    • Add fiberglass batt and air barrier to R-13
    • Estimated annual savings: $4.48
  • Crawl Space Insulation:
    • Seal and insulate, add foam insulation
    • Estimated annual savings: $11.74
  • Duct Insulation:
    • Insulate to R-10
    • Estimated annual savings: $20.12
  • Water Heater Temperature Adjustment:
    • Adjust to 120°F
    • Estimated annual savings: $21.81


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*Assess insulation levels
*Measure indoor air quality
*Evaluate windows & doors
*Evaluate attic ventilation

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