New bathroom - do I need to notify part p?

[mark306]

Hi I’m re-doing our bathroom. Here’s the order in which I would like to do things.

1. Remove old bathroom suite.
2. Removing all tiles and plasterboard.
3. Fit pipe work
4. Fit electric cables
5. Fit razor socket
6. Fit extractor fan
7. Apply 1/8" ply WBP plywood to floor (hoping will help stop chipboard floor squeaking )
8. Add plasterboard (aqua board near to bath)
9. Wall & floor tiles.
10. Fit electric shower (Topaz T100si 10.5kW).
11. Fit towel rail
12. Fit new bathroom suite.
13. Get electrician to connect shower, towel rail & razor socket

A few questions

Does this order look correct?
Do I need to contact my local building authority even if I’m not connecting anything myself?
What cable should I use for the shower?

I have spent time looking at the stickies and FAQs and my head is spinning with all the new terminology, so please don’t flame me!

Mark

 

[securespark]

Is that 18" ply or 1/8" ply?

 

[mark306]

whops

 

[sm1thson]

any work needs signing off either by a registered spark that did the work or by building control (after telling them before and paying the fee), as you are going to use a spark why not use him for all of it, any parts that need chasing you can do first to save labour costs. if you did run any cables the spark would need to agree first and he will want to know exactly what they are, where they are run and that they are not damaged etc as he would have to sign it off as he own which he isnt allowed to do (hence i recommended just chasing for him).

you havent mentioned bonding, this will need to be in place for the work to be signed off (possibly before the spark will do any work), bonding is something you can do without needing to notify etc.

 

[mark306]

The wall the shower will go on is breeze block with a layer or plasterboard - do you think there would be enough room behind the plasterboard for the copper pipe and cable without chasing.
If not I'll hire one from HSS for the day.

Thanks for your help
Mark

 

[davy_owen_88]

You'll have to cut a channel out of the plasterboard but I'd think a layer of 12.5mm + adhesive + top coats will accommodate 15mm pipe without you needing to chase the blocks behind. You may need to chop out a small bit for the pipe clips though, as they will probably push the pipes out a bit too far.