Florida AHJ

Solar permit requirements in Un-incorporated Miami-Dade, FL

Un-incorporated Miami-Dade is a High-Velocity Hurricane Zone requiring specific structural and electrical documentation for solar installations. Solar Design Lab provides permit-ready plansets that meet these local standards.

Requirements at a glance

Design wind speed
175 mph (ASCE)
Exposure category
C
Ground snow load
0 psf
High-velocity hurricane zone
Yes
Fire access pathways
Required
Submission format
digital_separate
Separate discipline files
Yes

What Un-incorporated Miami-Dade expects on a solar permit

Projects must be designed for a wind speed of 175 mph, Exposure Category C, and Risk Category II per FBC 2023 and ASCE 7-22. Submittals must be provided as separate digital files rather than a single combined PDF. Applicants must include Florida Product Approval or Notice of Acceptance documentation for all mounting components and provide a signed and sealed structural verification letter for roof framing. Revised plans require a response letter addressing each comment, with all changes clouded and marked with a revision number. Electrical requirements include a signed and sealed Engineer Letter of Compliance for interconnections at combo-meter busbars and specific grounding documentation for intersystem bonding. Fire safety mandates include 36-inch access pathways and ridge setbacks per NFPA 1. Additionally, installers must maintain a 5 ft setback from new electrical equipment to the property line and adhere to specific rail cantilever limits and roof edge distance requirements.

  • [submittal_format] Include a response letter addressing each comment, cloud all changes on revised plans, and mark them with a revision number from the previous submittal.
  • [documentation] Provide complete Florida Product Approval (FL#) or Notice of Acceptance (NOA) documentation for all mounting components, and list the approval numbers directly on the anchorage details.
  • [structural] Design for a wind speed of 175 mph, Exposure Category C, Risk Category II per FBC 2023 and ASCE 7-22.
  • [structural] Indicate the maximum clear vertical distance (H/2) between the roof surface and PV modules on anchorage details per ASCE 7-22 Section 29.4.4.
  • [structural] Maintain and verify a minimum edge distance of 2xH2 (or minimum 10 inches) from the roof edge or ridge per ASCE 7-22 Section 29.4.4.
  • [structural] Identify 'exposed' PV modules (e.g., beyond H/2 from ridge) and provide specific wind pressure values for both exposed and non-exposed panels per FBC 1616.1.1 & 1616.1.2.
  • [structural] Provide a signed and sealed structural verification letter certifying the roof framing can accommodate PV system gravity and wind loads per FBC 2023 1607.13.4.
  • [submittal_format] Provide submittal documents as separate files rather than a single combined PDF.
  • [documentation] Provide original manufacturer cut sheets and span tables documenting the solar panel wind pressure load capacity.
  • [structural] Limit maximum rail cantilever length per FBC 107.2.1 (e.g., maximum 16 inches, or L/3 such as 8 inches for a 24-inch span).
  • [structural] Provide a detailed array offset table and show dimensions (Top, Right, Bottom, Left) directly on the layout specifying the distance from each panel side to the roof edge.
  • [electrical] Provide a signed and sealed Engineer Letter of Compliance with fault-current and busbar load calculations for interconnections at combo-meter busbars per NEC 705.12(B)(3)(5).
  • [electrical] Base maximum system voltage calculations on a minimum design temperature of -2°C and PV source conductor sizing on a 35°C ambient temperature.
  • [electrical] Riser diagram must specify if service entrance conductors and raceways are new or existing, overhead or underground, and show all conduit sizes, materials, and conductor specs.
  • [fire] Provide 36-inch fire access pathways and ridge setbacks of 18 or 36 inches (if array exceeds 33% of roof area) per NFPA 1 11.12.3.2.
  • Maintain a minimum 5 ft setback from all new electrical equipment to the property line per the Miami21 code.
  • [electrical] Grounding system documentation must explicitly include the intersystem bonding system (NEC 250.94) and bonding for cold water pipes and gas lines (NEC 250.104).

Un-incorporated Miami-Dade building department

Always confirm current requirements and fees directly with the Un-incorporated Miami-Dade building department before submitting. Website located via automated research, verify before relying on it.

Design a permit-ready Un-incorporated Miami-Dade planset with these rules baked in.

Solar Design Lab derives the SLD, electrical, and structural live as you draw, and checks your design against Florida AHJ requirements before you submit. First planset free.

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