Do Bathroom Windows Need Tempered Glass?
Window safety requirements have gotten complicated with all the location-based rules, glass types, and code variations flying around. As someone who has installed windows throughout every area of homes, I learned everything there is to know about tempered glass requirements. Today, I will share it all with you.
The Short Answer
Probably should have led with this section, honestly—yes, most bathroom windows require tempered or safety glass, but specific requirements depend on location.
Code Requirements
Safety glazing required when:
- Within 60 inches of water (tub, shower)
- Bottom edge less than 18 inches from floor
- Top edge more than 36 inches from floor
- Walking surface within 36 inches of glazing
Why Tempered Glass
- Breaks into small, less dangerous pieces
- Required in hazardous locations
- Stronger than regular glass
- Protects against injury from breakage
Alternatives
- Laminated glass (holds together when broken)
- Glass block (not applicable for windows)
- Plastic glazing in some applications
