Glossary / tempered

tempered

Glass heat-treated so it resists breaking better than annealed glass. California CWUIC wants at least one tempered pane in dual-pane units. Tempered is not dual-pane.

Last verified 2026-08-23. JSON (CC BY 4.0)

Also called: tempered glass.

Related

• dual pane
• r327
• cwuic
• windows
• sfm-12-7a-2
• Dual-pane versus tempered windows

Where this term is used

16 guides use this term.

• California AB 38 seller disclosure
• Colorado CWRC versus Oregon R327 versus California CWUIC
• Deck railings in the WUI
• Dual-pane versus tempered windows
• Ember versus flame versus radiant heat
• Garage doors as an ember path
• Home-hardening ladder
• IBHS does not replace adopted code

All guides →