Posted by Bob Bulmer on Tue 26th February 2008 at 06:00 AM, Filed in Doors, Security
A latchbolt is an ideal replacement for a nightlatch. They are also known as a locking latch, which has both bolt and a latch.
The latch is operated by a handle on the inside, while the bolt is key operated. It is not advisable to put both a nightlatch and latchbolt on one door - why? - because you will have to turn knobs every time the door is opened.
A mortice lock cut into a door does offer more security, but weakens the doors structure to some extent. So if your front door is less than 45mm wide, a thin pattern mortice lock would be the best solution.
Posted by Bob Bulmer on Mon 25th February 2008 at 06:00 AM, Filed in Doors, Security
Due to security concerns relating to nightlatches, many individuals choose to fit an additional mortice deadlock. This saves on replacing the nightlatch in it’s entirety.
The mortice deadlock is usually fitted lower down the door. The lock which has a single bolt, inserts into a hole - called a mortice which is cut into the door. Cheaper two lever mortice locks should really be replaced by a new five lever mortice lock of the same size. This should add an extra layer of security.
Posted by Bob Bulmer on Fri 22nd February 2008 at 11:23 AM, Filed in Security
Cheap cylinder night hatches are often regarded as offering poor security. More expensive versions offer more security but make sure they have accreditation from the various standards authorities.
The problem with the standard nightlatch is that a burglar can break the glass in a door, reach round and undo the latch. You can take the precaution of installing a deadlocking cylinder latch. When you turn the key as you leave the house, the lock becomes set.
To lock while your indoors, choose a model with knob locking so that it can be locked from indoors as well as outdoors. For fire and safety reasons, ensure that a key is kept near the door.
Posted by Bob Bulmer on Fri 30th November 2007 at 06:00 AM, Filed in Security
An electronic security timer can offer automated and arbitrary lighting for a home while on vacation. Intended for security only - the device can be set over four lighting periods over 24 hours.
The electronic security timer then switches on and off a few times at random during each programmed period. This randomised lighting can give the impression of people and entering and leaving rooms. The randomised sequence is repeated daily unless set otherwise.
