Smoke alarms-Regs and MVHR

893bet

Two quick questions

1) Which rooms have to have smoke alarms according to the building regs? heat detectors needed aswell?

2) Should the alarms be tied into the MVHR so that it shuts off incase of the alarm going off?

Thanks in advance

Calahonda52

1: cant post link so google smoke detectors in advanced search with environ dot ie in site or domain filter

2: yes for fire alarm off, not just alarm

Gumbo

893bet wrote: »

Two quick questions

1) Which rooms have to have smoke alarms according to the building regs? heat detectors needed aswell?

2) Should the alarms be tied into the MVHR so that it shuts off incase of the alarm going off?

Thanks in advance

If I am building I would allow for the following, all mains wired :

Smoke alarm in all bedrooms, siting room, and each hall/landing at each storey.
Heat detector in kitchen.
Carbon Monoxide detector in whatever room required, ie. Where the boiler is.

893bet

kceire wrote: »

If I am building I would allow for the following, all mains wired :

Smoke alarm in all bedrooms, siting room, and each hall/landing at each storey.
Heat detector in kitchen.
Carbon Monoxide detector in whatever room required, ie. Where the boiler is.

And that meets/exceeds building regs?

Co2 alarm where any stove is aswell?

Gumbo

893bet wrote: »

And that meets/exceeds building regs?

Co2 alarm where any stove is aswell?

That would exceed current building regulations.
Every time the DOE look to change the regs, they seek input from the staff that inspect them. If they ever come to me to alter or prepare a draft for these, I would recommend the above.

Bedrooms are not mandatory but with the amount of kids nowadays with iPads or phones on charge over night I would strongly suggest a smoke alarm in the room. It may just go off 30 seconds earlier than an alarm out on the landing and that might just be enough to save a life. Especially with cranky teenagers that will insist on closing their bedrooms doors tightly!

893bet

kceire wrote: »

That would exceed current building regulations.
Every time the DOE look to change the regs, they seek input from the staff that inspect them. If they ever come to me to alter or prepare a draft for these, I would recommend the above.

Bedrooms are not mandatory but with the amount of kids nowadays with iPads or phones on charge over night I would strongly suggest a smoke alarm in the room. It may just go off 30 seconds earlier than an alarm out on the landing and that might just be enough to save a life. Especially with cranky teenagers that will insist on closing their bedrooms doors tightly!

Many thanks. For the sake of an extra couple of smoke alarms it makes sense!

893bet

kceire wrote: »

If I am building I would allow for the following, all mains wired :

Smoke alarm in all bedrooms, siting room, and each hall/landing at each storey.
Heat detector in kitchen.
Carbon Monoxide detector in whatever room required, ie. Where the boiler is.

For clarity I assume the smoke alarms/heta detectors should be wired so that they shut off the MVHR if activated.

The carbon monoixide should not be wired into the MVHR ?

Gumbo

893bet wrote: »

For clarity I assume the smoke alarms/heta detectors should be wired so that they shut off the MVHR if activated.

The carbon monoixide should not be wired into the MVHR ?

I'll let the M&E guys answer that question.

893bet

kceire wrote: »

I'll let the M&E guys answer that question.

No problem thanks!

I assume if there is CM in the house then the ventilation system could save your life so would be no point shutting it down with the alarm. Would like an experts view on it though.

Borzoi

893bet wrote: »

No problem thanks!

I assume if there is CM in the house then the ventilation system could save your life so would be no point shutting it down with the alarm. Would like an experts view on it though.

The alarm activation thresholds on the detectors are normally pre set at such a low level to allow plentyof time to shutoff the appliance which is the source of the CO or open windows to ventilate the space.

In commercial applications the fire alarm is always linked to stop the ventilation system upon activation.

893bet

Borzoi wrote: »

The alarm activation thresholds on the detectors are normally pre set at such a low level to allow plentyof time to shutoff the appliance which is the source of the CO or open windows to ventilate the space.

In commercial applications the fire alarm is always linked to stop the ventilation system upon activation.

I understand. But is there any point in having the vent system wired into the CM alarms?

BigFatGiant

kceire wrote: »

That would exceed current building regulations.
Every time the DOE look to change the regs, they seek input from the staff that inspect them. If they ever come to me to alter or prepare a draft for these, I would recommend the above.

Bedrooms are not mandatory but with the amount of kids nowadays with iPads or phones on charge over night I would strongly suggest a smoke alarm in the room. It may just go off 30 seconds earlier than an alarm out on the landing and that might just be enough to save a life. Especially with cranky teenagers that will insist on closing their bedrooms doors tightly!

Is it true that bedrooms are now specifically mentioned in the latest IS3218:2013 as requiring smoke detectors? This seems like overkill. An extra 4/5 detectors per house.

sydthebeat

BigFatGiant wrote: »

Is it true that bedrooms are now specifically mentioned in the latest IS3218:2013 as requiring smoke detectors? This seems like overkill. An extra 4/5 detectors per house.

IS 3218 : 2013 is applicable to buildings such as apartment blocks, commercial units etc.

BS 5839 Part 6: 2004 is the applicable reg for dwelling houses in ireland.

anyway, from what i can see the only change in regard to residential in regard to bedrooms in IS 3218 2013 is the distance from a bedroom door to a detector (3 m max)

Gumbo

BigFatGiant wrote: »

Is it true that bedrooms are now specifically mentioned in the latest IS3218:2013 as requiring smoke detectors? This seems like overkill. An extra 4/5 detectors per house.

No way is it overkill!
I recommend this to every contractor and developer I meet on site.
With the amount of iPods and iPhones and tablets that kids have these days the fact that go to bed with them in charge over night they may be liable to over heating and starting a fire.

A typical teenager will go to his room, close the door tight and you won't see him till the next morning. If a fire was to start in his room, the time it takes for the smoke to travel out of the area, through the door set and set off the detector in the landing could be vital in terms of life or death.

I would agree with smoke detectors being mandatory in all habitable rooms including bedrooms.

893bet

Could a mod move this to electrical section ? I might get my answer re the CM alarms and the mvhr system.

BryanF

893bet wrote: »

Could a mod move this to electrical section ? I might get my answer re the CM alarms and the mvhr system.

start a new thread there, ta

893bet

BryanF wrote: »

start a new thread there, ta

No problem. Was just wary of getting told not to start multiple threads on same topic in different t forums.