California Building Standards Commission Issuance for Bird-Safe Buildings...
California Building Standards Commission Issuance for Bird-Safe Buildings...
Yes. CollidEscape is compliant and perfect for all new California statewide Building Standards!
you can read all about the standard direct from the ordinance below, or contact us to cut through the noise and speak to an expert HERE. CollidEscape participated in the drafing of the standard and can speak confidently to your questions.
Title 24 Building Standards Codes 2024 Triennial Code Adoption Cycle
California Green Building Standards Code effective July 1, 2024
SECTION A5.107
BIRD-FRIENDLY BUILDING DESIGN
A5.107 Bird-friendly building design. A newly constructed building, or an alteration of an existing building that includes
the addition or replacement of 50 percent or more of the exterior glazing, shall comply with the bird-friendly building
design elements and features in Sections A5.107.1 through A5.107.3 of the California Energy Code and the fire hazard
severity zone regulations in Chapter 7A of the California Building Code.
Exception: Alteration to the glazing in historical buildings per the California Historical Building Code.
A5.107.1 Required elevation treatment. Building elevation treatment shall incorporate bird-friendly mitigation strategies. No less than 90 percent of a building elevation, measured from grade to a height of 40 feet (12 m) above grade, or from grade to the height of an adjacent mature tree canopy (whichever is greater), shall incorporate bird-friendly mitigation strategies. No less than 60 percent of building elevation, 40 feet (12 m) above grade to the top of the building elevation, shall incorporate bird-friendly mitigation strategies. Strategies to minimize the risk of birds colliding with buildings:
1. Glazing
Glazing with visual markers shall include, but is not limited to, the following:
a. Etched or fritted glass with patterns of elements on the exterior having minimum dimensions
of 1/4” (.64 cm) diameter for dots or 1/8” (.32 cm) width for stripes in a density of 2 inches (5.1 cm) maximum horizontally and
vertically (the “2 × 2 Rule”).
Note: If the visual markers are on glass surface 2, they can be effective if visible behind an exterior surface with reflectivity of 15 percent
or less.
b. Interior or exterior glazing film with 2 × 2 visual markers.
c. Laminated glass with 2 × 2 visual markers.
Note: Low-e coatings shall be behind the visual markers.
d. Glass block or channel glass.
e. Developed glazing technologies documented to reduce bird strikes, as tested by an independent third party and approved by the authority having jurisdiction; or
A5.107.2 Special conditions. The following special conditions shall comply with the provisions in Section A5.107.1
(as appropriate):
1. Glass facades adjacent to vegetated roof.
2. Glass railings and guardrails.
3. Transparent corners that extend 5.5 feet (1.68 m) on either side of a building.
4. Glass passageways less than 5.5 feet (1.68 m) wide.
5. Auxiliary glass building such as a glass pavilion or atrium exposed to the sky.
6. Auxiliary glass building such as a glass pavilion or atrium exposed to a courtyard with a water feature or plants.
7. Stained glass windows insulated on the exterior with clear glazing.
