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Fast Solar Permit Services

Structural Plan Permit Expedite

STRUCTURAL CRITERIA FOR RESIDENTIAL FLUSH-MOUNTED SOLAR ARRAYS

Please refer to the images below (figures 1 – 3) while completing the attached form.

FIGURE 1: Roof Visual Structural Review

FIGURE 2: Sample Solar Panel Array And Anchor Layout Diagram

FIGURE 3: Typical Anchor With Lag Screw Attachment

Fast Solar Permit Services Order Number (located at top of order receipt in email confirmation) *

Email Address *

ROOF CHECKS

Is the roof a single roof without a reroof overlay? *

Yes
No

Does the roof structure appear structurally sound, without signs of alterations or significant structural deterioration or sagging, as illustrated in Figure 1? *

Yes
No

ROOF STRUCTURE DATA

Measured roof slope: *

Measured rafter spacing (center-to-center) *

Type of roof framing (rafter or manufactured truss) *

Rafter Truss
Manufactured Truss

SOLAR ARRAY CHECKS

Is the plane of the modules (panels) parallel to the plane of the roof? *

Yes
No

Is there a 2” to 10” gap between underside of module and the roof surface? *

Yes
No

Modules do not overhang any roof edges (ridges, hips, gable ends, eaves)? *

Yes
No

Do the modules plus support components weigh no more than: 4 psf for photovoltaic arrays or 5 psf for solar thermal arrays? *

Yes
No

Does the array cover no more than half of the total roof area (all roof planes)? *

Yes
No

Are solar support component manufacturer’s project-specific completed worksheets, tables with relevant cells circled, or web-based calculator results attached? *

Yes
No

Is a roof plan of the module and anchor layout attached? (see Figure 2) *

Yes
No

DOWNWARD LOAD CHECK (Anchor Layout Check): Proposed anchor horizontal spacing (see Figure 2)

Proposed anchor horizontal spacing in feet and inches (see Figure 2) *

Is proposed anchor horizontal spacing equal to or less than Table 1 spacing? *

Yes
No

Wind Uplift Check (Anchor Fastener Check): Anchor fastener data (see Figure 3)

Diameter of lag screw, hanger bolt or self-drilling screw (5/16 inch diameter lag screws minimum) *

Embedment depth of rafter (2.5 inch minimum) *

Number of screws per anchor (typically one) *

Are 5/16 inch diameter lag screws with 2.5 inch embedment into the rafter used, OR does the anchor fastener meet the manufacturer’s guidelines? *

Yes
No

SUMMARY: If all items above are checked YES, no additional calculations are required.

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Solar Permit Consulting Services $49.99 – $79.99
Structural Plan Expedite Original price was: $499.99.Current price is: $399.95.
Solar Permit Expedite
Rated 5.00 out of 5
$399.95 – $979.89

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