FA Exhibit CMP-004

Inside an ember-rated vent: baffle path vs straight-through

Two equal vent cutaways compare a generic straight-through screened opening with one documented interleaved-baffle configuration. The first gives air and particles a direct path. The second makes air take a right-angle, Z-shaped, right-angle route and provides a low settling pocket. The baffle is an example after U.S. Patent 8,684,803, not a universal vent interior or proof of listing. — FA Exhibit CMP-004. Inside an ember-rated vent: baffle path versus straight-through. AFTER FEMA P-737 §4.4 & U.S. PATENT 8,684,803 FIG. 3 · ALTERNATIVE HONEYCOMB EXAMPLE: ICC-ES ESL-1445. Illustrative — not a construction document. Verify with your building official. CC BY 4.0.

Technical review: Grayson Graham. Last verified 2026-08-25. JSON

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