The locks have no handle.
Double cylinder locks illegal.
Fire safety issue solved.
Replacing single cylinder locks with double cylinder models may reduce successful break ins by 50 or more.
The last person out the house.
Now under what circumstances is a double cylinder lock helpful.
Jay staats 4 years ago.
Double cylinder locks are an extra layer of protection for home and business security.
In the u s there is no single comprehensive law against dual cylinder deadbolts.
She had left the.
A double cylinder lock requires a key to operate the door from either side.
Danger of double key locks.
Dual cylinder deadbolts require a key to open the deadbolt from both the inside and outside.
Deadbolts with a captured key feature operate like a single and double cylinder lock.
Only lock the double cylinder deadbolts when everyone is away unable to monitor the premises.
Illegal in some states.
These locks require a key to lock or unlock the door both from the outside and the inside making them a little safer in one regard.
Double cylinder locks are a big no no.
For example if there s a window on or nearby the door think of sidelight windows.
A double cylinder lock requires a key to be opened from both the inside and outside which could leave you trapped in your home during an emergency.
Also you must have an emergency escape plan.
Before you decide to install double cylinder deadbolts in your building check the local codes.
Without a button lock mechanism intruders cannot unlock the door manually.
Double cylinder deadbolts are therefore not ideal for emergency exits.
One important disadvantage is the extra safety concern.
There s a reason people want to equip their homes with double cylinder locks.
When i was a los angeles county deputy sheriff i had the sad observation of seeing a young woman who was killed by smoke inhalation.
In short it is helpful only if an easily broken pane of glass would allow access to the thumb turn of the lock but not passage into the house.
Deadbolt locks are made to withstand amateur attempts at illegal entry.
Even when the door is considered or designed for use during emergency only double cylinder deadbolt should not be installed in it.
These locks can create an issue for quick exit if a fire or other hazardous situation occurs.