As the locksmith adds this to the punch list, the customer will save thousands of dollars of rework. The value of a thorough inspection becomes evident.
WRONG CALL OUTS
Some installations were installed correctly but cannot satisfy the intended function.
An example is a group of electronic access doors that rely on concealed door closers to pull the doors shut. The purpose of the doors is to allow persons to quickly gain access by waving a proximity card in front of a reader, and the door securely latching behind them.
However, the under-powered door closers cannot overcome the constant changes in air pressure throughout the building. (See Figure 10) If the closers are adjusted at times of neutral air pressure, the doors will never latch. If the closers are adjusted at times of positive air pressure, the doors will slam hard during times of no pressure. This is a design flaw and will appear on the punch list.
The correction is to mount heavy-duty surface-mounted door closers that can pull the doors closed every time while monitoring the sweep of the doors to prevent slamming.
Another wrong call out involves the delayed egress doors that were previously mentioned. Delayed-egress doors must be approved by the local ordinance (or Authority Having Jurisdiction).
To comply with the AHJ, a motion detector monitors activity on the corridor side of the door. When a person is detected, the door becomes immediately unlocked. Where this facilitates safe egress on the corridor side, it completely thwarts the original intention of keeping unwanted persons from entering into the protected areas from the other side of the door. (See Figure 11)
The intention is that a person must keep pushing on the exit device for 15 seconds while an alarm blazes. As it stands, a person only has to wait for someone to pass near the door on the other side and the door is immediately accessible. To make matters worse the magnetic lock works in conjunction with an electric-retraction exit device which gives away the unlocked condition of the door with a loud “ thunk .”
This again is a design flaw that needs to be reworked. It won't be cheap or easy as the delayed-egress hardware is expensive and the door serves two purposes: as required egress from both sides of the door; and as a security door.
The intention was to install a custom secured gate to keep the public from entering into the perimeter of the facility while allowing employees to enter by waving their badges in front of the proximity reader.
Figure 12 shows the egress side of the gate. When the exit button is pressed, the magnetic lock on the other side of the door is released.
Unfortunately as seen in Figure 13, the gap between the door and jamb is sufficient so an average woman's hand can reach in and hit the exit button.
In Figure 13, the pudgy hand of the locksmith could not reach the button but a plastic coat hanger easily reached it.
It is especially necessary to apply craftsmanship when performing custom work.
In Figure 14, the magnetic lock that secures the gate is very heavy and is poorly secured to the jamb. If this were to fall, it would seriously injure someone. Whenever magnetic locks are installed, the manufacturer's instructions should always be followed.
The piece of angle iron that is used for a door stop (Figure 15) is not adequate and will soon fail. This is especially true considering the missing screws. Ironically, the installation of adequate door stop around the door would have also solved the problem with reaching for the exit device.
The original mounting of the door closer on the gate (Figure 16) was too high. Again scrap aluminum was installed as make-shift shim stock. This installation appeared on the punch list for rework.
Many other issues appeared on the punch list but were not mentioned in this article. Those noted stress the need for sub-contractors and locksmiths to apply quality and forethought to all their installations.
A successful approach to performing any task is to develop a personal level of criteria that is more demanding than what is expected from the customer.
I was invited to the retrofitting of the lock hardware on a pair of wide stile aluminum doors equipped with rim exit devices latching onto a mullion.