Discuss How many fire alarms do i need to install on a 3 bedroom house (2 floors) in the Security Alarms, Door Entry and CCTV (Public) area at ElectriciansForums.net
dl2 it says on the adico site....
Well, this thread is a bit of an eye opener to say the least.
Jst goes to show the lack of knowledge/confusion that exists regarding fire protection & alarms etc.
Although Approved Document B currently states that a Grade D LD3 should be installed, it also states that BS 5839-6 should be followed and this standard recommends a Grade D LD2 system.
First off they are CO (Carbon Monoxide) not CO2 (Carbon Dioxide) alarms and they SHOULD NOT be interlinked with standard smoke/heat alarms as the sound they emit when detecting CO is different to smoke/heat and YOU MUST be able to differentiate between the two i.e smoke from a fire and CO.
A new build or materially altered building would normally require a minimum of a Grade D LD2 (BS 5839-6) system which covers all circulation spaces that form part of an escape route and rooms or area's with a high fire risk. These area's cover hallways & landings, the principal habitable room and will require a smoke alarm.
Kitchens will require a heat alarm.
A fire risk assessment will determine the exact level of cover reequired but as stated BC will tell you what you need which nowadays in my experience is a Grade D LD2.
When someone uses the word "Fire Alarm" I tend to think of the typical zoned, pyro / FP200 cabled installation you would find in a industrial or commercial building. I have installed Fire Alarms in domestic properties but normally HMO.
I find calling them smoke/heat detectors when describing domestic installs much softer on the pallett :smart:
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