United States / Build / Inorganic rock mulch (Zone 0 groundcover)
Inorganic rock mulch (Zone 0 groundcover) This is a material class, not a wall or roof assembly listing.
No listing applies. Generic noncombustible material class — no OSFM listing program applies. This status is computed from the cited evidence by the published rule, never hand-assigned. The page keeps its cited source rows visible for readers and separates each evidence channel from the computed result on this record.
Inorganic rock mulch is crushed stone used as a groundcover in the first five feet. It is a material class, not a brand and not an OSFM-listed assembly. Bark, wood chips, gorilla hair, and rubber mulch are not this class.
Kind: material-class.
Page reviewed 2026-08-23. JSON (CC BY 4.0)
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Specification notes Zone 0 rules vary. California’s August 2026 Board of Forestry Zone 0 vote was not yet in force as of this verification. If the bag is bark, rubber, or dyed wood, it is not this record. Can I use this here How this product meets each requirement (1)
Requirement constraints (1)
Each table compares this product's documented attributes with one published requirement.
The comparison does not change from place to place, so it is printed once.
Inorganic rock mulch (Zone 0 groundcover). FireApproved. https://fireapproved.com/materials/inorganic-rock-mulch/. Last verified 2026-08-23. Verify at the source. Every listing number and claim here links to its origin — listings change and local amendments govern, so check the current record before you specify.