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// CODE SNIPPET

A4.106.4 Water Permeable Surfaces

California Green Building Standards Code 2019 > A4 Residential Voluntary Measures > A4.106 Site Development > A4.106.4 Water Permeable Surfaces
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Permeable paving is utilized for the parking, walking or patio surfaces in compliance with the following.
Tier 1. Not less than 20 percent of the total parking, walking or patio surfaces shall be permeable.
Tier 2. Not less than 30 percent of the total parking, walking or patio surfaces shall be permeable.
Exceptions:
  1. The primary driveway, primary entry walkway and entry porch or landing shall not be included when calculating the area required to be a permeable surface.
  2. Required accessible routes for persons with disabilities as required by California Code of Regulations, Title 24, Part 2, Chapter 11A and/or Chapter 11B as applicable.

Related Code Sections


A4.106.4 Residential Voluntary Measures, Water Permeable Surfaces
Permeable paving is utilized for the parking, walking or patio surfaces in compliance with the following. Tier 1. Not less than 20 percent ...
California Green Building Standards Code 2019 > A4 Residential Voluntary Measures > A4.106 Site Development > A4.106.4 Water Permeable Surfaces
A4.106.4 Residential Voluntary Measures, Water Permeable Surfaces
Permeable paving is utilized for the parking, walking or patio surfaces in compliance with the following. Tier 1. Not less than 20 percent ...
California Green Building Standards Code 2022 > A4 Residential Voluntary Measures > A4.106 Site Development > A4.106.4 Water Permeable Surfaces
A4.106.4 Residential Voluntary Measures, Water Permeable Surfaces
Permeable paving is utilized for the parking, walking or patio surfaces in compliance with the following. Tier 1. Not less than 20 percent ...
California Green Building Standards Code 2016 > A4 Residential Voluntary Measures > A4.106 Site Development > A4.106.4 Water Permeable Surfaces
2304.12.2 Wood, Other Locations
covering to prevent moisture or water accumulation on the surface or at joints between members. Exception: Sawn lumber in buildings located ...
California Building Code 2022 (Vol 1 & 2) > 23 Wood > 2304 General Construction Requirements > 2304.12 Protection Against Decay and Termites > 2304.12.2 Other Locations
2304.12.2 Wood, Other Locations
or other covering to prevent moisture or water accumulation on the surface or at joints between members. Exception: Buildings located in a geographical ...
California Building Code 2019 (Vol 1 & 2) > 23 Wood > 2304 General Construction Requirements > 2304.12 Protection Against Decay and Termites > 2304.12.2 Other Locations
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