Why the HVHZ Rules Exist
Miami-Dade sits in Florida’s High-Velocity Hurricane Zone (HVHZ). Codes demand stronger fasteners, heavier underlayments, and Miami-Dade NOA-approved materials to keep roofs on during 175 mph gusts.
Key Wind-Uplift Requirements
- Ring-shank nails every 6″ on center
- Double fasteners at hip and ridge zones
- Self-adhered or mechanically-attached underlayment rated for ASTM D1970
Permit & Inspection Timeline
- Contractor submits detailed scope + product NOAs.
- County issues permit (3-5 business days).
- In-progress inspection after tear-off.
- Final dry-in inspection and close-out.
Choosing NOA-Approved Materials
Look for Miami-Dade Product Control “NOA” stickers on shingles, tiles, metal panels, and roof vents. Insurance carriers may deny claims if unapproved products fail.
Work With a Licensed Contractor
DIY installs rarely pass inspection. Partner with a roofer who knows the code so your new roof is hurricane-proof and legally compliant.
Ready for a Free Assessment?
USA Roofing offers no-obligation inspections across Miami-Dade. Book yours today ›