Repairing Building Entry Door Using Plast-Aid

Often we find ourselves receiving calls from customers who request repairs to their entry doors on commercial premises.

There are many and varying types, styles and functions of entry doors, used across the world. In the United States, many commercial entrances use aluminum shopfront entrances, often installed by professional shopfitters.

Last week a client called us to repair a shopfront aluminum entrance door on their church entry.
This door was probably about 40 years old, judging from the style, the lock, the fading etc.

The initial repair was simply a readjustment of the door closer to enable correct closing distance.
We explained to the client that the use of double cylinder locks on primary entrances is a violation of building codes/life safety codes. We recommended they contact their local AHJ (Authority Having Jurisdiction) to get in writing, permission to use an inside cylinder on their entry door, while explaining that potentially, their insurance could be void if someone was locked inside and unable to easily escape. Life safety codes trump security, especially on commercial dwellings.

Here is an image of the outside of the front entry door. You can see where someone previous to me, decided to attempt to upgrade the security of the door, by installing a long metal plate along the door edge, to attempt to prevent a would be intruder from gaining access without damage.

While this is a great suggestion to increase the security of an entrance, in this particular case, the installer actually reduced the security of this entrance by removing the strike plate from the door jamb making the gap between the edge of the door and the door jamb too wide - preventing the deadlatching activator from operating correctly and making the latch mechanism easily able to be loided (latch pushed in using a screwdriver or plastic card)

This image shows the strike removed from the door jamb.

We thought of multiple ways to effect a simple repair to this issue, to reduce the gap between door and jamb, when closed.

We settled on a repair using the fabulous Plast-Aid moulding repair product.

We combined the Plast-Aid powder and ointment to a sufficient amount for the project, letting it cure to the point of a useable putty.

We applied the putty to the door jamb, where the strike plate would normally fit and let it harden sufficiently to recreate the function that the strike plate would provide.

The Plast-Aid product hardened in about 10 minutes and made the region of the door that the deadlatching pin was to hit, wider ensuring that the pin would then activate the security of the latch mechanism.

You can see in the next image, the door almost closed and the Plast-Aid repair product, jutting out sufficiently to encounter the deadlatching activator,

The local AHJ had already been and required them to change the double cylinder into an inside turnbutton, while allowing them to continue using the paddle on the inside and not having to replace the whole fitting with a panic exit device.

this image shows the latch mechanism fully seated in the strike hole (where the strike would normally have been fitted), contacting the deadlatching activator and securing the latch mechanism from loiding.

This whole project enabled us to maintain using the custom made blocker plate installed by the previous technician but repair the deadlatching feature and provide  stronger security, as intended by a dealatching lock system.