Loft conversion Smoke detection

[Bsharp]

Hi all, as most people will be aware the building regulations on fire protection for loft conversions are pretty strict. The situation I have on a couple of loft conversions is this.
buliding inspector now requires fire doors on all doors leading onto escape route or smoke detection in ALL these rooms. Now as the customer doesn’t want to go down the route of all door casings out and new doors everywhere they would prefer smoke detection in all rooms. Usually we would wire Aico radiolink into local circuits connect together. But the issue we have is filed bathroom floor, laminator in 3 first floor rooms and all light 2 plate method (no permanent line at light) so to get power to smokes becomes a nightmare. Does anybody no if a grade F system would be acceptable? As Aico now do a range of 10year sealed lithium battery (no mains) interlinkable detectors. If these where acceptable it would solve a big issue on loft conversions.

 

[buzzlightyear]

The only way of doing it is to put smokes in all habitable rooms.if makes no diffrant by putting in hard wire and interlinking one's.

 

[loz2754]

The person you need to ask is the building control officer. Some will accept grade F. Some will not.

 

[telectrix]

can't see a problem with the aico 10 year battery units, wirelessly interlinked. need to butter up the building inspector. i have recently installed a LD2 fire alarm system, all detectors and sounders wireless, only wiring was a FCU to the control panel. council weren't happy at first till i showed them evidence of other similar systems.. Liverpool docks, GP surgery. HMOs, et al. it's the way forward. no FP200, no redecorating, installed in a day or 2 by 1 engineer. no brainer.

 

[FatAlan]

Make the feed to the light permanent at the switch. Install a Quinetic remote switch with receiver in ceiling plus permanent feed for smoke.

 

[Bsharp]

can't see a problem with the aico 10 year battery units, wirelessly interlinked. need to butter up the building inspector. i have recently installed a LD2 fire alarm system, all detectors and sounders wireless, only wiring was a FCU to the control panel. council weren't happy at first till i showed them evidence of other similar systems.. Liverpool docks, GP surgery. HMOs, et al. it's the way forward. no FP200, no redecorating, installed in a day or 2 by 1 engineer. no brainer.

I agree that they are the way forward, I’ll have a chat with building g inspector and see if grade F would be compliant.

 

[Bsharp]

Make the feed to the light permanent at the switch. Install a Quinetic remote switch with receiver in ceiling plus permanent feed for smoke.

Good solution always an option if all else fails. ?

 

[Bsharp]

The person you need to ask is the building control officer. Some will accept grade F. Some will not.

Agreed that’s my plan, just seeing if anybody else had done similar. ?

 

[Bsharp]

The only way of doing it is to put smokes in all habitable rooms.if makes no diffrant by putting in hard wire and interlinking one's.

Yer smokes will be going in all rooms, but ideally with no wiring at all due to the issues I mentioned.

 

[Dartlec]

Just working on a large loft extension in a London borough and all the building control seemed to want was smokes up and down in landing and hall, no requirement for each room. His only concern was whether an extra one would be needed because of length of the hall, but didn't even raise mains/battery concerns.

So maybe it does come down to the individual building inspector - definitely worth having a chat before planning the work.