IECC Climate Zone 1

Insulation Standards for
Miami, FL

For Miami's humid Zone 1 climate, insulation helps keep moisture out and reduces the load on your AC system during endless summers.

Advanced ROI Calculator

Calculate savings based on your local climate & energy rates.

Retrofit Target
R-30
Recommended
New Code (2021)
R-30
Strict Standard
Climate Type
Very Hot (South FL, HI)
Source: DOE / IECC

Estimated Insulation Costs in Miami

Material TypeCost per Sq. Ft.Avg. 1000 sq.ft. Project
Blown-in Fiberglass$1.65 - $2.85$1650 - $2850
Spray Foam (Closed Cell)$4.13 - $7.13$4125 - $7125
Estimates based on Zone 1 material requirements. Local labor rates in FL may vary.

Why Insulation Matters in Miami

Living in Miami means dealing with the specific thermal challenges of Climate Zone 1. According to the 2021 International Energy Conservation Code (IECC), homes in this region require specific thermal protection to maintain efficiency and comfort.

💡 Local Energy Tip

Many homes built before 2010 in the 33101 area typically have insulation levels between R-15 and R-30. Upgrading to R-30 is often the single most effective way to lower your utility bills.

Recommended Materials for Zone 1

  • Blown-in Cellulose: Excellent for filling gaps and settling over existing insulation in older Miami attics.
  • Spray Foam: Provides both high R-value and air sealing, crucial for preventing drafts in Zone 1.

Ready to Upgrade?

Don't guess with your energy bills. We recommend getting quotes from at least 3 licensed insulation contractors in FL to compare pricing.

Check Another Zip CodeView All Cities