Internal partition wall regs?

[kjacko]

Hi all,
not been around for a while, but i've got an upcpoming extension soon so i'll probably be posing questions all over the place.

We're basically adding a full height 6ft extension to the side of the house. This will allow us to put an en-suite in, but are there any regs that govern how internal partition walls are erected? ie. specific cavity width, specific materials for specific rooms types etc?
We'll also be partitioning one bedroom into 2 and a living room into a living room and diner.
Is insulation required, or just advised?

All advice appreciated?

 

[DevilDamo]

Heights of internal partitions are usually governed by the thickness of wall. 75mm blockwork or timber stud is more than suitable for a single storey extension. Walls between bathrooms and habitable rooms should be provided with sound insulation and common sense, but look at providing moisture resistant boards to the wall/floor of said bathroom.

 

[tony1851]

If you are converting one bedroom into two, make sure your means of escape via the windows is OK.
You would need to insulate the partition between the bedrooms. If its studwork, you can either put sound-insulation batts between the studs, or alternatively add extra weight by double layers of plasterboard each side.