Any regulations applicable to loft hatches?

[DeeEyeAye]

My house is a converted bungalow, one half of the loft space having been made habitable. A small door connected the two areas, but due to some other work I have plasterboarded that opening up and insulated behind it.

I have now cut a new access. Apart from U-values, is there anything I should be aware of when making the new door? e.g. prevention of fire spreading?
As I hardly ever need into the loft, can I just put a piece of plasterboard across and screw it down? The access is at the back of a walk in cupboard so it doesn't have to look pretty.

 

[^woody^]

There are no regulations to worry about

18 or 25mm blockboard would be the convention. Draught proofing to edges and insulation on the back would be good

But if you want to put some plasterboard up, that's up to you

 

[JohnD]

never thought of it before, but the plaster ceilings in the rooms provide a firebreak to delay the (mostly wooden) roof catching fire, so a couple of layers of plasterboard on the loft hatch sound like a good idea to me.