WHY IT MATTERS

THE IMPORTANCE OF ENERGY RATING

Energy ratings aren't just about checking a code box — they're about building better homes. Understanding IECC, HERS, and ENERGY STAR helps you deliver quality, efficiency, durability, and value.

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IECC Energy Code

International Energy Conservation Code

  • ✔ Insulation R-values & window U-factors
  • ✔ Blower door ≤3–5 ACH50 required
  • ✔ Duct leakage ≤8 CFM25/100 sq ft
  • ✔Prescriptive, Performance, and Energy Rating Index pathways
  • ✔ Alternate Code Years (2015, 2018, 2021, and 2024) based on jurisdiction or builder preference
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HERS Index Rating

Home Energy Rating System

  • ✔ 100 = standard 2006 home; 0 = net-zero
  • ✔ Each point reduction = lower energy cost
  • ✔ RESNET-certified raters
  • ✔ Includes blower door & duct test
  • ✔Lower house maintenance issues
  • ✔ Energy Rating Index documentation for homebuyers
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ENERGY STAR

DOE Certified Homes Program

  • ✔ 10–20% more efficient than code minimum
  • ✔ Third-party verification required
  • ✔ Thermal, HVAC & Water quality checklists
  • ✔ Requires ACCA Manuals J, S & D
  • ✔ Federal tax credits & utility rebates
  • ✔ 2.5M+ homes certified nationwide

BENEFITS

Why Builders & Homeowners Choose Energy Ratings

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Lower Utility Bills
Rated homes use 20–50% less energy than a typical code-minimum home.
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Greater Durability
Building science-based construction reduces moisture risk and callbacks.
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Better Comfort
Proper air sealing and insulation eliminate drafts and hot/cold spots.
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Higher Resale Value
Energy-rated homes consistently appraise and sell at a premium.
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Reduced Emissions
Less energy used means a smaller carbon footprint for every home built.
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Market Differentiation
Certified and documented homes stand out and attract quality-conscious buyers.

Understanding the HERS Index

The Lower the HERS Score the better. Here's how the scale works.

100+
Standard Existing Home (Resale)
65-80
IECC Code Built Home
55-65
ENERGY STAR Certified
40-55
High Performance Home
0
Net Zero

HERS Index Score: 100 = Standard Existing Homes • Lower = More Efficient Homes

Build Better. Build Smarter.

Let us help you navigate energy codes and programs so you can focus on building great homes.

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