Tempered Glass Above Floor

The u factor requirements discussed above for vertical fenestration also apply to exterior glass doors.

Tempered glass above floor.

According to the national glass association there are 4 criteria that require safety glass. Any glass within 24 inches of a door along the same wall as the door or perpendicular to it that is less than 60 inches above the floor must be safety tempered glass. Where a hot tub is outdoors all glass must be tempered if the bottom edge is less than five feet above the walkway and five feet away from the water s edge according to the international residential code. Glass doors by definition in the iecc are considered to be those which are more than 50 percent glass in area.

Any window glass with 60 of a stair step or landing. One or more walking surfaces are within 36 inches 914 mm measured horizontally and in a straight line of the glazing. There are also four exception allowed as noted below in the citation from the residential edition of the florida building code fbc and the international residential code irc. All glass in the bathroom or around a hot tub or sauna must consist of safety glass if the bottom edge is less than 60 inches above a standing or walking surface such as the shower floor.

Windows are exempted from this requirement because the bottom glass is almost never over 9 square feet. The top of the glass is less than 36 inches above the floor. The top edge of the glazing is more than 36 inches 914 mm above the floor. The bottom edge of the glazing is less than 18 inches 457 mm above the floor 3.

According to code check complete. An illustrated guide to the building mechanical and electrical codes by redwood kardon et al conditions requiring a window to have tempered glass include a window lower than 18 inches from the ground larger than 9 square feet in area with a top higher than 3. When is a window required to be made from tempered glass. So the glass must be larger than 9 square feet and within 36 inches of a walking area plus the bottom of the window has to be below 18 inches above the floor and top more than 36 inches above the floor.

The size of the glass exceeds 9 square feet. The last primary state code requirement for tempering involves windows above stairs. You must temper all glass if its bottom edge is less than five feet above a walking or standing surface such as a shower floor. The glazing glass is less than 18 inches above the floor.