🪟 Window Wind Load Certification (HVHZ – FBC 2023)

✅ Site-Specific Wind Load Letter for Exterior Windows (FBC 2023 / ASCE 7-22)

This engineer-sealed wind load certification ensures your window product meets or exceeds the required pressures for permit approval in Miami-Dade, Broward, or any HVHZ region in Florida.

We calculate site-specific wind pressures based on actual window dimensions and compare them against your Florida Product Approval (FPA or NOA) to certify compliance with the Florida Building Code (FBC) 2023 – 8th Edition and ASCE 7-22.

Perfect for:

• Impact-rated window replacements

• New construction glazing packages

• Large custom windows requiring uplift resistance confirmation

🧾 What’s Included:

• ✔️ Signed & sealed letter by a Florida PE

• ✔️ Effective area-based pressure calculations (10 ft², 20 ft², 50 ft²)

• ✔️ Site-specific wind zone assignment (Zone 4 or Zone 5 typical)

• ✔️ Florida Product Approval verification

• ✔️ Full Detailed Wind Calculations Report C&C calcs included

• ✔️ PDF ready to upload to permit portal

🏠 Use Cases:

• Single-Hung / Double-Hung

• Casement / Awning

• Fixed / Picture Windows

• Sliding Windows or Horizontal Rollers

• Custom Impact Windows (large openings)

📐 Engineering Specs:

• Design Wind Speed: Site Specific or per HVHZ Requirements (whichever is larger)

• Exposure Category: C/D (Site specific)

• Risk Category: II

• C&C Zones: Typically Zone 4 or Zone 5

Important: Please submit all site surveys, product approvals, floor plan sketches and window schedules of your project.

💬 FAQs:

Can I use this for multiple windows at one address?
Yes — we can include multiple openings as long as all products and sizes are provided. Additional fees may apply for large window schedules.

What if I don't know the NOA?
Just send us the brand/model and we’ll help locate the Florida Product Approval.

Do you calculate actual pressures for each window?
Yes — we apply the appropriate effective area per window to assign the correct zone pressure for permitting.

Is this valid outside Miami-Dade?
Yes — we serve all Florida jurisdictions. Just note the city/county during checkout.

📩 Need Help Before Ordering?

Call us at 813-694-8989 or email info@oasisengineering.com — or use our quick intake form www.oasisengineering.com/contact