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IBHS Wildfire Prepared Home Plus multipane tempered glazing

The current IBHS Plus standard includes a multipane exterior-glazing path with at least two tempered panes.

This is one program path. Twenty-minute glazing and glass block are separate paths. The etch, window schedule, opening type, and complete installation still need project review.

program · California and Oregon program applicants · Last verified 2026-08-24 · JSON (CC BY 4.0)

Published requirement text

“Multipaned glass with at least two tempered panes.”

2025 Wildfire Prepared Home Technical Standard — Insurance Institute for Business & Home Safety

Where this instrument is documented

Instrument ibhs-wildfire-prepared.

Set a location to read how this instrument lands where you are.

No sourced application record joins this requirement to a place. The quoted text stands on its own; local reach is unknown.

Each place page carries that place's boundary, project scope and open official checks in full; this page's JSON twin carries them per application.

Machine-readable constraints

AttributeOperatorValue
assemblyRole in exterior-window–glazed-door–skylight
paneCount gte 2
temperedPaneCount gte 2

Sources

IBHS Wildfire Prepared Home Plus multipane tempered glazing. FireApproved. https://fireapproved.com/requirements/ibhs-plus-exterior-glazing/. Last verified 2026-08-24.