![]() In addition to protecting the latch or bolt, these devices can also provide some protection for the exposed portion of the rim or mortise cylinder. ![]() However, the basic design is to obstruct the lock edge of the door, covering the exposed portion of the latch or bolt. In many instances, these terms are interchangeable. Some of these include the names guard plates, latch guards, astragals, vandal guards, latch protectors, anti-vandal handles, etc. These latch protection products limit access to the latch and the bolt areas between the lock edge of the door and the jamb. To protect against loiding and other forms of attacking the latch or bolt, a variety of products have been introduced over the years using many different names. The term loid comes from the word celluloid (film), where a piece of 35mm movie film could be used to open a locked door. This method will work on spring latches and dead latches where the dead latch extends into the opening of the strike plate. Loiding uses a thin piece of plastic or film to slide between the tip of the latch and the strike in order to be able to open the door. My favorite easy entry is to “loid” open the door, a method that was introduced more than 50 years ago. On doors that are equipped with latch mechanisms, the latches can be slid back using different methods. ![]() However, if the gap is wide enough, a battery operated rotary grinder can be used to gain entry. On center hung doors, the deadbolt can often be cut, as there usually is no protection to prevent sawing.įor most wood and hollow metal doors, a jamb stop deters sawing of the deadbolt. If there is a wide gap and the strike plate has not been properly mounted, the door can possibly be opened by manipulating or cutting the latch or bolt. The security of the opening decreases when the gap between the lock edge of the door and the jamb exceeds 1/8”. To make matters worse, many doors are either installed incorrectly or have changed because of settling, time or natural affects. This places the latching mechanism in view from the non-secured side. Is the door being serviced susceptible to vandalism or forced entry attacks? By code, most exterior commercial doors are required to open out. We must take into account the traffic, location, materials and construction of the opening, plus the interaction between the door and the jamb to determine the correct hardware. The job is not completed with just the installation of a high security mechanical or electro-mechanical latch or deadbolt lock. An installation is only complete when the appropriate security hardware has been installed.
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