The most asked question by homeowners is, “When is tempered glass required in residential windows?” Not many people realize that there are strict international regulation codes that home contractors are required to follow. In this article, we explain exactly when tempered glass is needed in windows.
When Is Tempered Glass Required In Residential Windows
The International Residential Code 2018 has given detailed guidance on “When is tempered glass required in residential windows?” There are different requirements that homeowners need to understand in order to comply with this code. Let’s get into it:
Windows Below 18 Inches From the Floor
According to IRC, windows must have tempered glass if the glass exceeds 9 square feet in area, the glass bottom edge is less than 18 inches above the floor, and the window is located near walking surfaces. These requirements are in place to minimize risks as large windows are at more accidental risks, especially in areas where people walk frequently.
However, there are exceptions to this rule. Decorative glass does not need to be tempered, as it serves an aesthetic purpose. The tempered glass might also not be required if there is a horizontal rail or a permanent barrier bordering the windows or if the glass is far away from the walking surface.
Windows Near Doors and Walkways
Glass in windows located near doors must be tempered if the bottom edge is less than 60 inches above the floor and meets certain conditions. These conditions include the glass being within a certain distance from the door, like within the door’s swing path or if it is part of a large glass panel.
All these regulations apply to windows near entryways, hallways, and even walkways where people are most likely to pass.
Windows with Large Openings
Windows with large openings over 9 square feet must be made of tempered glass if they are located near walkways or within 18 inches of the floor. Also, if the top of the glass is less than 36 inches above the floor, tempered glass will be required.
Windows in Shower and Bathroom Areas
Glass near wet areas like showers and bathrooms must be tempered if it is less than 60 inches above the floor. This is to prevent injuries in locations where water exposure increases the chances of accidents.
There is an exception: if the glass is more than 60 inches horizontally from the water source’s edge, it may not require tempered glass. A professional contractor will better guide you on all such exceptions.
Windows Neighboring Stair Landings
Windows near the bottom of stair landings must be tempered if they are less than 36 inches above the floor and within 60 inches from the bottom step. You can avoid tempered glass windows when there is guarded protection like a railing, which will prevent direct contact with the glass.
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Now that you know “when is tempered glass required in residential windows? ” You should hire an experienced contractor who’ll follow all the regulations. Trust Patrick can help you select the best trustworthy and reliable contractors. You just need to select the service you need, and we will send you three options with price comparisons.
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