The primary difference between IBHS FORTIFIED Home standards and the Louisiana state building code is that IBHS standards represent a voluntary, “above-code” construction system. While local building codes set the minimum legal requirements for construction, IBHS standards are engineered specifically to provide superior resilience against severe weather.
Key differences include:
- Enhanced Requirements: To achieve a FORTIFIED designation, a roof must include reinforced deck attachments, impact-resistant materials rated for high winds, and a sealed roof deck to prevent water intrusion if shingles are lost. These specific features exceed basic building code requirements.
- Continuous Load Path: IBHS standards focus on stronger nailing patterns that create a continuous load path from the roof down to the foundation, whereas standard codes may not require the same level of reinforcement.
- Performance Tiers: The FORTIFIED system offers three specific certification levels (Bronze, Silver, and Gold) with wind resistance ratings ranging from 130 mph to 180 mph, providing tiers of protection that go beyond standard code-compliant roofing.
- Financial Incentives: Unlike standard code compliance, meeting IBHS standards can qualify homeowners for the Louisiana Fortify Homes Program grants (up to $10,000) and significant wind mitigation insurance discounts of up to 50%.
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