Ceiling speakers and fire hoods

Ceiling speakers and fire hoods

Author
Discussion

Number 7

4,103 posts

262 months

Tuesday 16th August 2016
quotequote all
Or build a box within the joists using plasterboard.


Monty Python

4,812 posts

197 months

Driller

8,310 posts

278 months

Thursday 18th August 2016
quotequote all
hairyben said:
Driller said:
hairyben said:
Driller said:
When we bought and restored our house we knocked down all the (fashionable at the time in 1893) deviding walls on the ground floor to create one big open space. Does that mean I have to put all these walls back up then as they acted as fireproofing?

What about if I remove half the ceiling and make a duplex?

Don't get me wrong, I did look at these things at the tine and decided against them.

I think this is a step too far and when you consider the frankly outrageous prices for the things, you can only draw one conclusion IMO.
You need to decide if your argument is technical in nature or an unwillingness to pay for the less bling things.

Right now you sound like the guy whose fitted linglongs to his car and needs to try to convince everyone theres no difference to premium tyres.
You cad, you just called me a cheapskate! laugh

It's both: technically it's just overkill (as others have suggested) as there are sufficiently numerous other "hazards" around the house to render them pointless and they cost a ridiculous amount of money so even though I can afford them, they are very hard to justify.
What other hazards are these that are relevent to inhibiting the spread of fire between floors? Its a very specific safety issue, and probably mitigates other hazards in the event of fire.

As for the cost only you can decide whether your safety is worth you paying for, to me a few hundred spent maintaining fire barriers to allow decent escape times seems like a small amount relative to a scale of project where multiple walls are being removed, but we all have our own priorities. Id be curious to know your workings for cost justification though, none of us ever plan to be running from burning buildings, its a difficult thing to gauge risk which is why we rely on building regs to set standards as they have a far bigger overview and dataset to our individual experiences.
You sell these things don't you? wink

And it doesn't matter if the other hazards are related to the speakers or not. It's like selling very expensive meteorite proof helmets!

I have installed stand alone fire alarms in every room in my house, doubled up with a wired detector next to each of these which are connected to the main alarm system. Given the choice between being asleep in my house with no overpriced glorified potato sacks on my speakers and a house with them when a fire starts, I know where I'd rather be biggrin

Driller

8,310 posts

278 months

Thursday 18th August 2016
quotequote all
Driller said:
hairyben said:
Driller said:
hairyben said:
Driller said:
When we bought and restored our house we knocked down all the (fashionable at the time in 1893) deviding walls on the ground floor to create one big open space. Does that mean I have to put all these walls back up then as they acted as fireproofing?

What about if I remove half the ceiling and make a duplex?

Don't get me wrong, I did look at these things at the tine and decided against them.

I think this is a step too far and when you consider the frankly outrageous prices for the things, you can only draw one conclusion IMO.
You need to decide if your argument is technical in nature or an unwillingness to pay for the less bling things.

Right now you sound like the guy whose fitted linglongs to his car and needs to try to convince everyone theres no difference to premium tyres.
You cad, you just called me a cheapskate! laugh

It's both: technically it's just overkill (as others have suggested) as there are sufficiently numerous other "hazards" around the house to render them pointless and they cost a ridiculous amount of money so even though I can afford them, they are very hard to justify.
What other hazards are these that are relevent to inhibiting the spread of fire between floors? Its a very specific safety issue, and probably mitigates other hazards in the event of fire.

As for the cost only you can decide whether your safety is worth you paying for, to me a few hundred spent maintaining fire barriers to allow decent escape times seems like a small amount relative to a scale of project where multiple walls are being removed, but we all have our own priorities. Id be curious to know your workings for cost justification though, none of us ever plan to be running from burning buildings, its a difficult thing to gauge risk which is why we rely on building regs to set standards as they have a far bigger overview and dataset to our individual experiences.
You sell these things don't you? wink

And it doesn't matter if the other hazards are related to the speakers or not. It's like selling very expensive meteorite proof helmets!

I have installed stand alone fire alarms in every room in my house, doubled up with a wired detector next to each of these which are connected to the main alarm system. Given the choice between being asleep in my house with no overpriced glorified potato sacks on my speakers and a house with them when a fire starts, I know where I'd rather be biggrin
ETA @Number 7, nice work!

Tom_C76

1,923 posts

188 months

Thursday 18th August 2016
quotequote all
The main reason for installing fire hoods is so that a fire can't spread up into the floor itself. The plasterboard acts to prevent the joists burning, to give anyone upstairs time to escape a fire. Regs are 30 mins for 2 storey buildings, 60mins for 3 storeys. That's 1 layer and 2 layers of plasterboard respectively.

As stated by others, bungalows are exempt as roof structures shouldn't have anyone living in them...