Insulating around cables ect

[Dee]

Hi

I'm worried about how to insulate around wires, downlights, junction boxes ect.

I'm creating a bathroom above the kitchen so there's ceiling joists, void then floor joists of the bathroom.

Do I leave an air gap around downlights?

Should I not put any insulation down atall?

What the fire risk around junction boxes and airflow? Overheating ect?

I was going to use Knauf on the ceiling and kinsman on the bathroom floor.....should I leave the void clear??

Thanks so much

[TonyT]

Could you fully insulate, then strap the ceiling with timber, the void between the plasterboard and insulation will be sufficient for modern LED lights

[Square Feet]

You can buy downlight hoods fairly cheaply for just this thing. 

 

 

[MikeGrahamT21]

Assuming the downlights are LED and not halogen, there is no danger per se, from the wiring perspective, but the bulbs still get hot, and whilst not enough to burn it can shorten their lifespan. Loft Legs to a lid, a plastic housing which you put over the down light and silicone to the back of the plasterboard for this application, and also keeps things nice and airtight, if that’s what your going for

[Dee]

Actually in the end it was only 2/7 that were covered in insulation so I bought two metal box things as that's what my late husband used...Good enough. Thanks again everyone