When selecting a roof for your South Florida property, choosing certified wind resistant asphalt shingles is key to surviving hurricane season. The Florida Building Code dictates strict wind-resistance guidelines, particularly for coastal areas like Jupiter, Stuart, and Delray Beach. If your roof fails to meet these specifications, it is highly susceptible to shingles tearing off, water leaks, and structural damage.
In this guide, we analyze how modern architectural shingles are engineered to resist high uplift coefficients. By utilizing proper fastener patterns and advanced sealants, you can install wind resistant asphalt shingles that stand strong against severe tropical storms and keep your home safe.
The Engineering Behind Wind Resistant Asphalt Shingles
Standard three-tab shingles are lightweight and tend to lift when winds exceed 60 to 70 MPH. Architectural (laminated) shingles, however, use multiple layers of fiberglass mat bonded with premium asphalt. This dual-layer structure adds weight and stiffness, allowing them to carry higher wind load ratings.
To qualify as wind resistant asphalt shingles under local Florida codes, products must meet two industry-standard test criteria:
- ASTM D7158 Class H: The highest resistance rating, certifying the shingle can withstand uplift winds up to 150 MPH.
- ASTM D3161 Class F: Certifies that the shingle remains intact under continuous 110 MPH wind cycles.
- Thermal Seal Strips: Specially formulated asphalt seal lines that bond shingles together when activated by warm sunshine.
3 Nailing Rules for Maximum Wind Resistance
Even the highest-rated Class H shingles will blow off if they are not installed correctly. Proper fastening is the most important factor in securing wind resistant asphalt shingles:
1. High-Wind 6-Nail Fastening Pattern
Standard shingles are installed using four nails. For maximum wind resistance in Florida, manufacturer warranties require a 6-nail pattern per shingle. These nails must be positioned along the common bond line where the layers overlap.
2. Standard 8d Ring-Shank Nails
Nails must be driven straight and flush, not angled. We use 8d ring-shank nails that extend deep into the roof deck sheathing, providing high pull-out resistance during wind cycles.
3. Hand-Sealing Perimeters
For shingles near eaves, rakes, and hips, manual application of asphalt roofing cement is required. This extra seal prevents wind from catching the edge shingles and starting a peeling chain reaction.
Interlinking Your Roofing Knowledge
Securing your roof deck starts with choosing the right contractor and materials. To compare how shingles perform against other structures, read our detailed metal roof vs shingles cost comparison. Additionally, to make sure you qualify for insurance premium discounts, see our guide on how to qualify for insurance wind mitigation credits.
To explore shingle choices, check out our residential shingle roofing services or contact our local estimators to schedule a detailed roof audit.
