Aluminum Patio Cover Engineering and Permit Information.

Plans are available for the Alumawood patio kits so that you can get a permit with your local building department.

Are you getting a patio cover building permit?

If you decide to get a permit, we have engineering plans accepted by most building authorities. Our DIY Kits range from a 10lbs live load up to a 60lbs Ground Snow Load; wind rating starts at 95mph and can exceed 130mph.

We take care of the engineering, so you don’t have to!
Part of our service is preparing the engineering plans you can present to your Building Department.

In some areas, permits are not required; contact your building department to verify.

If you’re getting a permit, the first step is to get your local building code requirements to make sure the quote we provide meets all the building department requirements. Your local region will have specific load requirements, and with a quick search or a phone call, you should be able to get the information you need.

Patio Cover Load Ratings

Some terms your building department may use include live load, ground snow load, roof design load, wind speed, wind exposure, seismic load, patio height, frost line, and property line setback. Note: Ground Snow Load and Roof Design Load differ; verify your snow rating when consulting your building department.

Live Loads and Snow Loads
Roof Design Load (RDL) is rated in pounds per square foot, and your region and elevation determine Live Load (LL) and Ground Snow Load (GSL).

Ground Snow Load is typically higher than the Roof Design Load, so verify what information the building dept. is giving you LL, GSL, or RDL.
Wind Factors
Wind speed is measured in Miles Per Hour and exposure.

Wind Exposure
Exposure B: Urban and suburban areas, wooded areas, or other terrain with numerous closely spaced obstructions.
Exposure C: Open terrain with scattered obstructions.

Seismic Rating
Seismic Size Requirements (Ss) is the Maximum Considered Earthquake Ground Motion (0.2 sec).

Applying for a Permit

Verify engineering report is accepted.
Our patio cover kits are designed to meet the International Building Code and the California Building Code; Engineering Report number ESR 1398.

Always verifying that your building department accepts our engineering.

Provide Inspector with Plans
The inspector at the building department will want to see the product engineering. When placing your order, let us know you need a set of engineering. The pertinent details will be highlighted in the engineering for your building inspector to review.

A plot plan may be required, a simple overhead line drawing with dimensions of your property lines, home, and proposed location of your patio cover.

What comes with the Engineering Plans?

The engineering plans are a set of span tables for roof panels, rafters, beams, posts, and connection details that allow us to design your patio cover within the material capabilities so the cover is built properly and you can count on the cover to withstand your local climate.

The details that pertain to your cover are highlighted and then we email that set of highlighted plans so that you can pass them along to your local authority.

We provide engineering for Arizona, California, Nevada, and Washington.

Note: No engineering is available for the city of Los Angeles.

How to Do It Yourself

Engineering Report Details

Report Number: ICC ESR 1398
Engineering Reports are available for the 2018 IBC, 2021 IBC, 2019 CBC, and 2022 CBC.

Your building department may rattle off acronyms for their required engineering requirement.
IBC: International Building Code
CBC: California Building Code
ICC: International Code Council
IBC: International Building Code
AA: Aluminum Association

What is included in the Engineering Report?
Plan Drawings
Post Connections to Concrete Slab, Concrete Footings, or Wood Deck
Post Connection to Gutter-Beam or Various Beam Designs
Roof Pan or Rafter Connections
Hanger Connection to Wall, Fascia, and Roof Top
Span Tables Included in Engineering Report:
Post Spacing on Slab
Post Spacing on Footings (with or without slab)
Aluminum Beam Clear Spans
Steel Beam Clear Spans
Wall or Freestanding Attachment for Roof Pan or Rafter Clear Spans
Fascia Attachment for Roof Pan or Rafter Clear Spans
Roof Top Attachment for Roof Pan or Rafter Clear Spans

Plot Plan

A Plot Map is a basic overhead line sketch illustrating your property including the location of your house, garage, shed, pool, driveway, etc., and your proposed awning, patio cover, or carport.

Also required on the Plot Map are details of your neighboring properties, streets, allies, and so forth; the Building Department typically uses this information to verify that you’re not imposing on any property line setbacks.

Alumawood Pick Up Locations