News & Resources
Florida Building Code (FBC)
As we approach the end of the year, we are coming upon an FBC change starting January 1, 2024, and are excited to share important updates.
This edition is a culmination of the 7th Edition (2020) FBC and the proposed Supplements based on improved levels of standards per the Florida Building Commission. This Code Change impacts all architects and engineers who rely on the FBC to stay in code compliance and provide the highest levels of safety. Key highlights of the Florida Building Code 8th Edition (2023) for Buildings include:
1. Change Of Occupancy: Will now apply where the FBC requires a greater degree of safety, accessibility, structural strength, fire protection, means of egress, ventilation or sanitation than exists in the current building
2. Rooftop Structures Underlayment: Types and installation for all roof coverings have been revised to be consistent with areas outside the HVHZ in Section 1507.1.1. Section 1504.2.1.4 Underlayment testing Added, Section 1507.1.1 Underlayment Changes (lapping and minimum width changes). Section 1518.3 Self-adhering membrane required to be applied over mechanically attached anchor sheet – Deleted
3. Exterior Walls & Features Added Sections: 454.1.9.9 Swim-up bars. 1405.14.2 Accessories, 1405.14.2.1 Starter strip, & 1405.14.2.2 Utility trim
4. Means of Egress: Thresholds changed to Section 1010.1.6 Thresholds Exception 2 has been revised to specifically permit thresholds at exterior doors of dwelling units or sleeping to be at the height necessary to comply with the water resistance requirements of Section 1709.5.
5. Structural Design: Updated to correlate with ASCE 7-22
a. Ultimate design wind speeds have been updated to correlate with ASCE 7-22. Wind speeds are unchanged for most of Florida except for the panhandle area where wind speeds have increased slightly in some areas.
b. Section 1609.5 & 1620.7 Tornado loads – Added
Key highlights of the Florida Building Code 8th Edition (2023) for Residential include:
1. Rooftop Assembly: Section R905.1.1.1 - Underlayment for asphalt, metal, mineral surfaced, slate and slate-type roof coverings. - Changes Section R908.1.1 - 25 percent rule –now applies to a roof replacement and roof re-cover.
2. Building Planning Sections Added: Section R311.7 - Stairways -Added Section R322.1.6 – Change in Protection of mechanical, plumbing and electrical systems Section R703.11.1.4 - Starter strip – Added Section R703.11.1.5 - Utility trim – Added Section R704.3 - Aluminum fascia – Added Section R704.4 - Corners on hip roofs (aluminum fascia) – Added Section R704.5 - Corners on gable roofs (aluminum fascia) – Added
3. Basic Wind Speed Map: Similar to FBC above
4. Special Appliances, Equipment, and Systems: M1905 Residential Permanently Installed Standby Generators - Added
As your trusted engineering partner, Engineering Solutions is committed to supporting you in seamlessly transitioning to and implementing the Florida Building Code 8th Edition. We understand the impact that these updates can have on your projects, and our team is ready to provide the expertise and guidance needed to navigate these changes effectively.
References 1. Florida Building Code, 8th Edition (2023) 2. ASCE 7-22 Minimum Design Loads and Associated Criteria for Buildings and other Structures
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