ICC Commercial Building Inspector Practice Test

What is the maximum allowable length of glass used in jalousies?

1. 36 inches

2. 48 inches

3. 54 inches

4. 60 inches

The correct answer is: 48 inches

The maximum allowable length of glass used in jalousies is determined by safety and structural considerations. Jalousie windows consist of multiple horizontal glass slats that can be adjusted for ventilation. Since these slats are subjected to varying loads, including wind pressure and temperature changes, building codes set specific limits on their dimensions to ensure they can withstand these forces without breaking or becoming a safety hazard. The requirement of 48 inches for the maximum length of glass in jalousies aligns with the need to strike a balance between functionality and strength. If the glass were longer, it could become more susceptible to cracking or shattering during extreme weather or if improperly handled. Therefore, adhering to this maximum length is crucial for maintaining the integrity and safety of the installation. Understanding these building code requirements helps inspectors ensure compliance and safety in commercial buildings.