For remote activation of the deadlatch, Adams Rite introduced the Steel Hawk 4300, a non-handed electrified latch that is a direct replacement for the 4500/4700/4900 Series using the same strike.
To resist unauthorized entry, manufacturers have developed varying forms of protection for aluminum stile mortised lock and exit devices. These include cylinder, latch and strike protection. These normally hardened metal cones and plates cover the outer diameter of the mortise cylinder or along the area between the door and jamb. Specialized plates wrap around the jamb, having a strike opening. Latch plates are available in different configurations to accommodate the mounting location of the door - flush, partial recess or center hung.
Up until a few years ago, the three styles were the only options. Then Adams Rite introduced the Dual Force 2190 interconnected deadbolt and latchbolt lock for aluminum stile doors. The 2190 provides deadbolt security with the interior trim able to retract both the deadbolt and latchbolt for egress in a single motion.
There are several methods for installing the aluminum stile lock bodies. The labor-intensive method uses a tape measure and pencil or paper template. Once every opening is marked, carefully cut the openings using a jigsaw and holesaw. Finish the openings using a round and flat file for the fine adjustments. As an alternative, Major Manufacturing has the GIT-30 Template Guide Holder and aluminum templates for the faceplate opening and the mortise cylinder, thumbturn or cam plug openings for the stile and the strike opening. The openings are cut using a router and bit, drill bit or holesaw.
Once door prep has been completed, there are three methods for securing the lock body within the stile. First, some door companies drill and tap into the aluminum extrusion for the mounting screws. The lock body is then secured by two flat head machine screws.
The second method is to use metal brackets to install the lock body in an aluminum stile door. The two brackets have three 10-32 tapped holes. The two end holes secure the lock. They are different to accommodate different applications. To install, drill a hole above and below the faceplate cutout to secure the brackets to the door edge. Position the bracket to accommodate the installation. Once the bracket has been secured, slide the lock body into the opening and secure it using two mounting screws.
The third method is to use mounting bridges. They provide a mounting surface within the stile and screw receptacle for installing the lock body. An installation tool is required to install them. Mounting bridges eliminate the need to drill mounting holes into the edge of the stile.
A number of surface-mounted locks can be installed onto aluminum stile glass doors including exit devices and pushbutton locks. Exit devices are available as rim, mortised or vertical rod. Exit devices are available with a push bar/bar or crossbar devices. Narrow stile exit devices can accommodate stiles as narrow as 1-3/8”. For wide stile storefront doors, the standard chassis exit device can probably be used.
Note: Kits and pieces are available for converting a mortised lock to an exit device or pushbutton lock. A blank faceplate, two hole filler plates and the necessary mounting hardware are required.
When installing exit devices, guards and hardware protection products can protect the end caps and surface vertical rod bottom rods from the damage caused by carts and/or gurneys passing through doorways.
There are pushbutton locks specifically designed for aluminum stile glass doors. Mechanical pushbutton locks have a single access code and are usually equipped with an override cylinder. These locks (trim) have a narrow footprint and do not require a large cross bore opening. Most are designed to retrofit onto doors equipped with the standard deadlatch mortise body.
Mechanical pushbutton locks can be equipped with a thumbturn, knob or lever handle. Thumbturn-equipped locks operating deadbolt lock mechanisms do not require two hands for operation. One hand can rotate the thumbturn to unlock the door and the same hand can open the door. Thumbturn equipped locks that operate deadlatch lock mechanisms require two hands for operation. Therefore, they do not meet Americans With Disabilities Act (ADA) requirements.
In my experience, people never want to use two hands to open a door. Whenever possible, most people try to unlock and open the door with the same hand. People will use the key to push or pull a door...
The lock stile is where the majority of day-to-day lock service is performed. From keyed cylinders and thumb-turns to latches deadbolts and hook bolts, this is where the action is.