Rhode Island is the first state to fully adopt the 2024 International Energy Conservation Code (IECC) for residential construction. Effective November 2024, this code mandates electric readiness, tighter building envelopes, and more stringent testing. These updates align with the state’s Act on Climate goals, advancing the shift toward a cleaner, zero-emission future.
🔧 5 Key Changes from the 2024 IECC
⚡ Electric-Ready Infrastructure Required
Every new home must now include pre-wiring, panel space, and infrastructure to support:
- Heat pump HVAC systems
- Electric water heaters
- Electric ranges and dryers
- EV charging stations
- Conduit for future electric upgrades
These changes support Rhode Island’s electrification goals and make it easier for homeowners to adopt clean-energy appliances.
💨 Stricter Blower Door Testing & Air Sealing
- Maximum air leakage: 3 ACH50
- Mandatory blower door testing for all homes
- All penetrations (including rim joists and plates) must be sealed with foam or caulk
Builders must emphasize air barrier continuity and precision sealing to meet these enhanced requirements.
📏 More Stringent Duct Leakage Testing
- Required if ducts are outside the thermal envelope
- Maximum leakage: ≤ 4% of system airflow (CFM25)
- Ducts must be sealed using mastic or UL‑181 tape
This encourages duct placement within conditioned spaces, helping to reduce energy loss and improve system performance.
🧱 Enhanced Thermal Envelope Requirements
- Lower window U-values and SHGC
- Increased R-values for walls, attics, and foundations
- Prescriptive and performance-based strategies to reduce thermal bridging
Builders should prepare for rigid exterior insulation and advanced framing techniques to meet these performance standards.
🔌 Optional Demand-Responsive Water Heating
- Applies to larger developments or homes in utility programs
- Supports smart-grid integration and utility demand management
- Positions homes for future rebates and grid-interactive incentives
🧰 Training & Support Available in Rhode Island
Rhode Island has secured $1.6 million in federal funding to support the transition to the 2024 IECC. Available resources include:
- Free training through the Rhode Island Builders Association and State Energy Office
- Webinars and in-person workshops on air sealing, HVAC design, and electrification
- DOE software tools for code modeling and compliance
Pro Tip: 💡 Enroll your crews early in envelope and air-sealing workshops to avoid costly rework and project delays.
🔨 How the 2024 IECC Affects Renovations & Additions
- Additions must comply with updated envelope, duct testing, and electric-ready standards.
- Major renovations (e.g., HVAC replacements, gut renovations) may trigger blower door testing and electric-ready requirements.
- Always confirm local code applicability with building officials before starting a project.
✅ Get Expert Help Meeting the 2024 IECC Requirements
At Energy Geeks, we’re here to help homeowners, builders, and contractors stay informed about and compliant with evolving building codes. Whether you need to schedule a blower door test 🏠, improve your home’s air sealing and ductwork performance, or explore full weatherization solutions, our certified team ensures you’re fully prepared to meet the 2024 IECC standards. Request a free estimate 💬 today and make your next project energy-efficient, code-compliant, and future-ready.