asside from all of the different parts of the building regs which you need to comply with, the problem is that you are planning on using 3.26A worth of electricity to light one room!
Downlights in bathroom question again...
- Thread starter actionjackson
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These downlights are Acoustic rated and in complienc with part E.
They are fire rated to 90 minutes and in complience with part B.
They have silicon gaskets to assist with part C & L.
Why cant i use them?
They are fire rated to 90 minutes and in complience with part B.
They have silicon gaskets to assist with part C & L.
Why cant i use them?
Part L concerns the efficient use of energy. A silicone gasket will do nothing here, since the problem is that 15 lamps of 50 watts each to illuminate a bathroom is grossly inefficient.
750w is more than many people use to illuminate their entire house, and in your bathroom represents power just for lighting in excess of 100 watts per square meter of floor.
Using fewer lights won't help either - its the number of lumens per watt which matters.
The silicone gasket won't ensure compliance regarding moisture entering the ceiling cavity either, since the only way to achieve this is to fix an airtight structure over the top of the light fitting - something which is impossible to do without access from above.
As for sound transmission, regardless of what the manufacturers of these lights might say, cutting 15 holes in an acoustically rated ceiling will significantly impair its performance.
You're bathroom is less than twice the size of mine and I have 5x50W lights in it (lamps now replaced by excellent 4W 120 degree beam LED lamps) which is more than enough. You will need nowhere near 15 in your room.
Technically the only person's opinion you really need to worry about is your Building Control Inspector's. So ask him what you're allowed.
Technically the only person's opinion you really need to worry about is your Building Control Inspector's. So ask him what you're allowed.
Agreed the inspector's decision is ultimately the decider but its interesting to listen to others views.
I regret saying 15 lights - thats how many i have and i plan to use no more than 9 - probably less. Anyway what car do you all drive - Toyota Mirus? Probably not. Its personal choice at the end of the day and i can live with mine.
Ref building category L, how do new builds pass this then with downlights? Yes they are inefficient but being in the bathroom how often are they going to be switched on. If they were in the lounge then thats a different story.
I regret saying 15 lights - thats how many i have and i plan to use no more than 9 - probably less. Anyway what car do you all drive - Toyota Mirus? Probably not. Its personal choice at the end of the day and i can live with mine.
Ref building category L, how do new builds pass this then with downlights? Yes they are inefficient but being in the bathroom how often are they going to be switched on. If they were in the lounge then thats a different story.
Do they actually claim that?
Do they provide specifications for how much they resist the passage of sound? If they don't allow less than 1dB more through than the existing ceiling then they won't comply because you will have made the ceiling worse.
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