☀️ Boulder Roof-Mounted Solar Wind Certification

Single Family Residential Projects

$700.00$559.00

Out of stock

✅ Permit-Ready Structural Letter for Solar Installations (City & County Compliant)

This Colorado PE-sealed structural evaluation is tailored for residential or light commercial rooftop solar PV systems located within the City of Boulder or unincorporated Boulder County. It satisfies all checklist requirements for wind and snow loading—per the B46 Boulder County checklist and City of Boulder permit portal.

Whether your panels sit flush or tilt up above the ridge, this letter validates the roof’s structural capacity to support the added system load and withstand 150–165 mph ultimate wind speeds, depending on location.

🧾 What’s Included:

✔️ Stamped Structural Letter by a Colorado PE

✔️ Roof Dead Load & Framing Evaluation

✔️ Site-Specific Wind Load (Vult 150–165 mph or SEAC Map)

✔️ Snow Load + Combination Load Checks

✔️ Rail Attachment Spacing Verification

✔️ PDF File – Permit Ready & Uploadable

☀️ Use Cases:

Flush-Mounted Residential Solar Arrays

Tilted PV Installations (above ridge)

Battery Backup or Hybrid Systems

City or County Projects (Jurisdiction Verified)

📐 Engineering Specs:

Design Wind Speed: Vult 150–165 mph (City) or site-specific (County)

Risk Category: II

Snow Load: Ground Snow Load per Boulder County Map

Exposure Category: B, C, or D (engineer verified)

Topographic Factor: Required in City; County IRC = Kzt = 1.0

Design Methodology: LRFD (ASCE 7-16 or 7-22)

💬 FAQs:

Is a structural letter required for solar in Boulder?

Yes — both City and County require a PE letter verifying roof capacity for the additional dead load, uplift, and snow. It’s listed as mandatory on their solar checklists.

What if I don’t have panel cut-sheets or mounting details yet?

No problem — we can issue a preliminary review and finalize the letter once your contractor submits mounting specs.

What wind speed applies to my project?

We determine that based on your address. If you’re west of Broadway in the City, it’s 165 mph. In the County, we use the SEAC map and interpolate your site.

Do you stamp for Colorado?

Yes — all letters are signed by a licensed Colorado Professional Engineer.

📩 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

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