Before installation, clean all internal surfaces of the glass with an alcohol-based glass cleaner. Apply the 166 flange gaskets on each flange of every channel. The gasket application is most effective if the material is stored in a shaded location prior to installation. The gasket should be held 'A inch from the end of the flange on one end
and flush with the edge of the flange on the opposite end (e. g. a 96-inch channel would have a 95-1/2 inch 166 flange gasket). The recessed portion of the gasket is always applied to the bottom end of the channel.
Installation of the glass channels can begin at either the center point of the opening or at either end. Shop drawings are typically provided to indicate starting point and number of channels to be used for a specific elevation. Consult TGP for the size of joint between the channels. Typically, these joints are 1/8 inch, but the size can sometimes vary depending on the requirements of the contract documents. The jamb channels at either end of the glazed opening must have a minimum glass coverage of Vi inch (20mm), or as otherwise specified. The flange cut/jamb channels are typically inserted prior to the installation of the last full-size channel.
Pocket glaze the channels by inserting into the plastic liners located in the head and then lowering the glass down onto the corresponding plastic insert located in the sill. Suction cups are typically used to aid with this procedure. To ensure that the spacing between the channels is consistent, place 1/8-inch plastic shims at the head and sill of each channel as it is being installed.
5、Sealing the System
Prior to the application of any sealant, check glass joints for consistency and plumb. Install special channel glass shims across internal and external joints and seal all glass-to-glass and glass-to-aluminum joints with approved silicone sealant. For 1/8-inch glass-to-glass caulk joints, it is not necessary to use backer rod. The caulk joint at the perimeter of the frame should be packed with the properly sized backer rod and the approved, specified sealant should now be applied to the perimeter joint。
Although the installation process for channel glass such as SQ type U-profile glass involves some specific steps and techniques that differ from standard glass, experienced glaziers can install the product without hassle using these basic guidelines。