Glass Break Sensors and Double Glazing?

[J4m3s]

Quick question while I'm planning my system: Is it worth bothering with glass break sensors in rooms where I've only got double-glazed windows? Do thieves ever break double-glazing?

I'll have a few PIRs dotted around too but these will be disabled in the night, and anyway I'd rather the alarm went off immediately someone tried to get in rather than after they were inside.

Thank you!

James.

 

[steveo44]

J4m3s good question.

 

[J4m3s]

I'm speculating but I guess it's pretty hard to break through the two sheets of 4mm glass that typically make up a double glazed panel. I wonder if they'd ever bother, or if they'd try to jemmy a door/ window instead. If the latter I'm as well to just stick with the door/window sensors in rooms with double-glazing only.

I bet the alarm installer guys on here get to hear of a lot of horror stories about breakins that have galvanised their customers into finally getting an alarm fitted. I'd like to cover-off those horror scenarios!

Thanks

 

[OwainDIYer]

No point in breaking the glass if the window is one of those where the whole glass can be lifted out silently.

 

[joe-90]

Waste of time. Use a shock sensor (Viper).

BTW, I've seen far more double glazed units broken into than wooden frame. They are only plastic and aluminium so you can pry them easily.

 

[yaleguy3]

Many modern homes have doors with half glazing and insecure locks.
Your average new home can be entered in 20 secs without specialist tools.
No need to break glass.

 

[J4m3s]

Can you elaborate guys? (without telling everyone how to break into people's houses!) Would the vibration sensor pick up the method you're talking about?

Also, do they tend to false alarm in high winds etc?

I guess it's still worth putting window/ door sensors on as a) they're cheap and easy to wire and b) they will show a fault if we've left one open.

 

[steveo44]

I guess the pro installers on here don't want to talk about this subject.

 

[sparkymarka]

The post only 3 years old ! Lol

 

[steveo44]

The post only 3 years old ! Lol

Well maybe but it seems Alarm Installers still don't want to talk about it.

 

[sparkymarka]

Maybe because no one was interested !