This water test meets the requirements of ASTM E 1105 and AAMA 502 to simulate wind driven rain. It involves hanging a calibrated rack of nozzles on the building, to shoot water at the windows. Inside, a pressure chamber with blower and digital manometer is mounted over the window to create a lower pressure than outside, and measure at what pressure the window-failure occurred. The basis for selecting an appropriate product and glass make-up is determined with knowledge of the Design Pressures acting on the opening. Using this data and ‘certified product approval’ test results allows the selection of a product that’s meets with the opening size, and has tested pressures that meet or exceed the Design Pressures for wind loads and water resistance. The resultant selection lists the glass mark-up which includes the type of interlayer and type and thickness of glass pliers. Here is an example of one chart from WinDoor, Inc. Click here to see the full report: 15-0723.12 Series 8100 sliding glass doors NOA No 15-0723.12. The minimum requirement to meet with hurricane protection is impact-resistant glass, but there other glass packages available including impact-resistant with insulated glass, impact-resistant with low-E coated glass, and impact-resistant with insulated glass and low-E coated glass (see Energy codes for an understanding of the differences). In some applications and some municipalities “Energy glass” must be used. In other applications this is a value-added selection by the owner. Check in with us to be sure of your selection.īody tinted glass products are produced by small additions of metal oxides to the float or rolled glass composition. These small additions color the glass bronze, green, blue or grey but do not affect the basic properties of the glass except for changes in the solar energy transmission.ĭo not get confused with Window film. Window film is a thin film or laminate that can be installed to the interior of glass surfaces. Its purpose is to reduce down the amount of heat transferring through the glass but many impact-resistant glass manufacturers’ do not warranty the glass with this addition.The glass used for an impact resistant window utilizes a strong laminate interlayer between two pieces of glass to absorb impacts. This type of glass was first manufactured for automobile windshields, and is now a popular type of window to install in the Gulf South. When normal glass is hit by flying projectiles during a storm, it can shatter. With impact resistant glass, the pieces remain attached to an inner membrane along the window frame.
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