Kitchen drop down ceiling for extractor

[liftfan]

Hello,
Any advice on how to build a drop down ceiling to go above a kitchen island?

I want to build this in the picture below and fix it into the ceiling joists above.I’ve got a 1800x900mm piece of MDF cut already, plus all the other side pieces pre cut.

I’ve also got a load of 38x63 CLS. But what’s the best way to put it together?

I was thinking of this:

 

[blup]

Keep it as light as possible, just a bare frame screwed up into the joists with plasterboard rather than mdf which is prone to moisture ingress.

Blup

 

[liftfan]

Keep it as light as possible, just a bare frame screwed up into the joists with plasterboard rather than mdf which is prone to moisture ingress.

Thanks for the reply. Yes, the weight is an issue. I was advised to use Mdf for the main board as the extractor rests either side of the cutout (900x600mm so I lose quite a bit there). I’ve got moisture resistant board to help with that.
I was originally going to use plasterboard but I’d like to give it a go with the MDF as I have it now!

 

[^woody^]

Mdf above steam?

 

[liftfan]

Mdf above steam?

That’s what I thought! But that‘s what was recommended by the manufacturer of the extractor.
I‘m priming the moisture resistant board with Zinsser Bin and using Diamond Egshell so maybe it’ll be ok?

 

[Murdochcat]

where does the vent pipe go ?

 

[liftfan]

Ducting into the ceiling then outside.

 

[foxhole]

I made a unit over the stove, mainly MDF but the section over the stove holding the extractor was fire board.

IMG_2499

• foxhole
• 1 Dec 2018

 

[foxhole]

I made a unit over the stove, mainly MDF but the section over the stove holding the extractor was fire board.

IMG_2499

• foxhole
• 1 Dec 2018

Found a better pic

 

[liftfan]

Looks great. Any problems with the MDF?