pipe clipping in joists

[Jupiter01]

Hi,

I will be drilling holes in my joists to pass through 22mm copper. I've read up on regs and am familiar with this. Every so often I will be using push fit elbows and dropping down to rads with 10mm plastic.

The regs require the holes to be 1 metre away from the wall and the tee should be located away from the joists so probably in the centre of two joists. This will mean that the 10mm plastic will be floating in between the joists before it meets the wall chase where I plan to clip it. Is that okay or should I be putting un battens and clips within the joists?

Thanks in advance.

 

[TCCHeating]

Should be fine.

 

[Jupiter01]

Thanks for the prompt response.
On a related note, do you have a view on the use of 10mm drops to rads. These will be connected to a 22mm copper in the ceiling void.

I met a plumber today who was very anti this idea and suggested that it will inevitably lead to sludge and circulation issues.

But when I floated it on the forum earlier this week, it got the thumbs up.

Confused now...

I want to have floating rads where the pipe emerges from behind

 

[TCCHeating]

Big house builders like Taylor whimpey and barrats love the stuff because it is quick and easy. I personally don't use it as I have been to too many copper microbore systems installed 20 or so years ago with circulation and blockage issues. And if you actually measure the inside diameter of 10mm plastic with the insert it is actually more like 6mm.

Just my opinion and I know many on here will completely disagree with me

 

[Jupiter01]

With the blockage issues you have attended, did any have 22mm copper going close to the rads and then 10mm for the last 2 metre drops?
Often guys talk about systems where the 10mm is used on much longer runs and the problems it presents. That's not what I intend.

 

[Jupiter01]

Hi,

I'm keen to hear about anyone else's experiences in relation to the above. Thanks

 

[denso13]

I agree clips aren't required and I'm also not a fan of 10mm plastic. Probably nearer a 5mm bore through a 10mm insert.

 

[Jupiter01]

Thanks Denso13. Where's all those raving 10mm fans when you need em!
Not meaning to put words in your mouth but did you notice in my earlier description that I am planning to take 22m copper above each rad and then drop down around 2 metres for each rad in 10mm? I didn't want you or others to think that I am running the entire system in 10mm.

The reason I am going 10mm is to achieve the floating rads. I am being led to believe that it can't be done with 15mm...

 

[dazza87]

I have 10mm in my house although was put in by a red hot engineer!.You have been asking question everystep of the way.you will allways get different ideas.I have seen issues with copper micro poor but normally poorly fitted
Some people hate ideal boilers some love them etc.
Not having a pop and i know this is a diy forum,i realize some people like to save money(everyone).But the time you have took posting,the mistakes you will make ,the tools that you probably wont have,the standard of job your going to do as opposed to a professional doing it.
Your job could have been done now up and running,and xmas day instead of sitting on a dust sheet ,you could be sat in a finished house.Some times its just false economy.

 

[Jupiter01]

Hi Dazza,

Thanks for the response. A bit absurd perhaps...I enjoy DIY and look forward to this task. I like to consult widely as this discussion proves that there are varying views. Being a DIY'er, it's very helpful to understand these perspectives before making a decision. And yes, if it saves a few pennies along the way, that's more beer time!

Thanks again.