Do Bathroom Windows Need Tempered Glass?

Window safety requirements have changed quite a bit thanks to the location-based rules, glass types, and code variations flying around. As someone who has installed windows throughout every area of homes, I spent real time learning the ins and outs of tempered glass requirements. Today, I will share it all with you.

The Short Answer

Probably should have led in this case, candidly—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