Archive for May 2011

When Drop Bars Meet Panic Bars

05/31/2011

The Arm-a-Dor system is the commercially sold solution for a business owner that wants drop bar style security that will still pass an inspection. The district I work in seems to have very few of these, compared to other parts of the city that has newer construction or a large amount of big box chain stores . The trend that I have noticed is that when you do find these they are more than likely being used by larger companies that have standards on how their buildings are secured and are more concerned on staying code compliant over securing their goods. Where you do not find these very often would be in locally owned businesses or the “mom and pop” style businesses.

This system allows you to have a bar that secures both the hinge side and the lock side of a door. If installed properly it provides much longer of a throw than a typical deadbolt or generic panic bar system. It is becoming more popular because of the fact that it is unlocked by the panic bar system allowing them to keep occupants inside safe and pass inspections.

  

From the outside these doors will have a bolt pattern that presents like most drop bar mounts. The big difference when you look close is the types of washers they use. This is the easiest way for us to identify the system from the outside and puts us one step ahead when trying to determine what we are going up against. These washers are not flat but raise slightly off of the door and then have a recessed area for the heads of the carriage bolts to fit in. They are polished and have a very obvious look to them that they are commercially produced and not just something that was picked up from the hardware store. The angle that is created by the raised washers make the saw blades want to walk compared to the rough edge of a normal washer. The washers are also very large and this makes driving them through the door very difficult. 

When the systems are installed properly the bars are designed to extend behind the frames at least an 1 1/2″. This is how they are designed, however due to so many variables in the field, you will find a wide variety of installations that had to be modified. Many times this is better for us because they are poorly done and may only have 1/2 inch or even a 1/4 inch behind the frame or jamb. They can either extend behind the wall, or the frame can be drilled out and the bars can extend into the frame. Both are commonly used.

 

This above picture is a good example of how the craftsmanship of the installation is what makes this system strong or not. This one has the bar extending the proper length on the lock side of the door but you can see that the hinge side bar barely extends pass the frame. I have seen these the same way on the lock side, which defeats the entire system. This is why always trying conventional Irons work first is a good option. Depending on how these are installed they may pop very easily, if they do not then we move on to plan B. If we do not defeat the door conventionally then we will disable the system by defeating the bolts which still should make quick work of this door. A few other companies make similar systems to this but this is by far the most common in my city. In the end these will never be stronger than a well fabricated steel drop bar with good mounts, but it is a step up from the generic panic bar systems.

June 26th Forcible Entry Class

05/13/2011

The Northeast Teller County Fire District is hosting IRONS and LADDERS LLC on June 26 th 2011. This will be an open enrollment hands on forcible entry class. Participants will be largely from the Woodland Park and surrounding areas but this class is open to firefighters from any department. Registration is now open, feel free to contact us and sign up. Below is the flyer for the class, it has detailed course information and registration contact info.

June 12th Cripple Creek Forcible Entry Class

05/13/2011

Cripple Creek Fire and Emergency Services is hosting IRONS and LADDERS LLC on June 12th 2011. This is a closed session class for Cripple Creeks Reserve Academy. This class will be filled in house and should not have any other openings. If some arise we will post it for anyone interested.

Door Size Up #10

05/03/2011

This door is on the backside of a single story “L” shaped strip mall.  The store is used as an army surplus outlet.  Run down the key size up points and see what you think. The double doors are set in masonry construction.  What else do we see?

  1. Metal frame and metal jamb
  2. Outward swinging double metal doors
  3. Primary lock is key in knob
  4. Carriage bolt pattern on both doors indicative of a drop bar
  5. Carriage bolt pattern 18” above the lock suggestive of a hasp or possible slide bolt

The interior view of this door shows us what we are up against.  As we predicted we have a key in knob lock and a drop bar with a hasp that is padlocked.  There are several interesting points about this door.  As we could tell by the exterior picture, the seam where the doors come together has a wide gap (approximately 1/2”).  The occupant has attached a 1/8” piece of steel that runs the length of the doors to prevent anyone from trying to lift the drop bar out of place or manipulate the primary lock. These strips on the back of the door come standard on many double door setups, but many times occupants will fabricate their own to increase the security. This is the main reason you should force the lock side door when doing double doors. You want to force the one that closes last because that metal strip acts as a stop for the main door. If your pry on the secondary door you will be working against that strip.   Secondly, the drop bar is 1/4” steel that rests on two brackets on either door.  The weight and placement of the drop bar will be beneficial to us when we start to force entry.  The weight of this bar could be an advantage as we drive the carriage bolts through because it may cause the brackets to fail even quicker. Another thing to remember on double doors is to force the bolts on the primary door first, don’t waste your time taking all the bolts out across the whole door because it is not needed.  Also, note where the drop bar ends.  It only extends the width of the frame, greatly decreasing the degree of difficulty.  Lastly we have the hasp that is padlocked together.  This may offer a little more resistance because the lock is elevated slightly and will cause us to lose a little leverage when we force the door.  It should not be anything that we can’t overcome using the irons.