Physical security quesion - front glass door

Tiras25
Tiras25 used Ask the Experts™
on
Hi guys,
Our building's front door glass panel is being broken in about 1-2 times per year. Roughly. This is a laminate frosted glass.
Not an easiest to break. But the guy with good rugged boots was able to breach it with about 8 kicks.

Our glass installer said its stronger than the tempered glass. Similat to the triplex in the car windows; and the best option we got.

Question - what would be the next level of upgrade should we consider?  Besides the solid door.  We cannot put a thicker glass due to the door frame limitation.
Any other ideas or the solid door is the only way?

Thanks in advance!
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Wire mesh glass?  Security screen/gate in front of glass door?

The only alternative would be transparent aluminum, but I doubt they make anything as big as a door and it would be extremely cost prohibitive.

Not sure about the aesthetics of your door, but since it's frosted glass, you could compromise and make the bottom half solid with the top half glass, reducing the surface of the glass to attacks.
JohnBusiness Consultant (Owner)
Most Valuable Expert 2012
Expert of the Year 2018

Commented:
If you have people literally kicking down a glass door, then a very common alternative (agree with the above) is a wire mesh glass door, followed by a strong wooden or fully metal door.
David FavorFractional CTO
Distinguished Expert 2018

Commented:
If people continue to break in through the same glass door... time to change to a solid door...
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ZeropointNRGHedge Fund Manager

Commented:
Also add a camera.
I'd endorse the wire-mesh glass approach for the entire door, with a stout wooden or better yet steel panel behind it for the bottom two-thirds of the door assembly. This way, those inside can still see who's outside but the kicker can't attack the top section unless he brings a stepladder with him... However, said kicker may simply switch to using a hammer or similar, in which case the glass will still get broken.
Another possibility is to consider installing bullet-proof glass. I've had a quick look and it's available on eBay's US site, and though relatively expensive it's probably cheaper than replacing the current type of glass every six months or so. If the glass can withstand a bullet it shouldn't have too much trouble in resisting a yob's boot or indeed his hammer...
Top Expert 2014
Commented:
Why not replace the glass with polycarbonate? It has a much higher impact tolerance than safety glass and boots bounce off it.

Author

Commented:
Hi Andy, that's another idea.  I heard the polycarbonate has a doscoloration overtime.  Getting yellow from direct sun and then brown eventually.
ZeropointNRGHedge Fund Manager

Commented:
@Tiras25, just use UV protection Polycarbonate.

Author

Commented:
As for bulletproof glass answer.  We asked vendors and they said the frame thickness lmited to a 1/4" of thickness.  Bulletproof glass should be thicker they said. Current laminated frosted glass they installed is 1/4" and is the max thicvkness they can do in this door.  
Hopefully it'll be stronger than the tempered glass with tinted film.  Laminated is similar to the cars winshield triplex.
Then change out the door and reduce the glass surface area.
If you change the door as serialband suggests, then you will have much more control over the design and construction of its replacement, and you can implement whichever suggestion(s) seems best to you.
Top Expert 2014

Commented:
Make a sign that says "I have lots of money" and attach t to your neighbours door. then you won't be targeted.
ZeropointNRGHedge Fund Manager

Commented:
ROFL @ andy.

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