Extension

[saveloy]

Re: how not to wire your extension

Dritherm cavity batts are a perfectly acceptable form of insulation.
This type of insulation is known as full fill and is a standard building
system. There is no need for clips and it wont transmit damp from outside to inside.

 

[ExArmy]

Re: how not to wire your extension

Dritherm cavity batts are a perfectly acceptable form of insulation.
This type of insulation is known as full fill and is a standard building
system. There is no need for clips and it wont transmit damp from outside to inside.

debatable. they said the same about the "new" cavity fill beads" that are used for retrofit cavity insulation, but they cause problems still! i'd be interested to see how both of them perform back to back, and the cost difference (dritherm vs 50mm cavity batts)

 

[saveloy]

Re: how not to wire your extension

debatable. they said the same about the "new" cavity fill beads" that are used for retrofit cavity insulation, but they cause problems still! i'd be interested to see how both of them perform back to back, and the cost difference (dritherm vs 50mm cavity batts)

Well it is a system that has been used in millions of
houses and extensions all over the country for the past 30 odd
years. Problems with damp transmission in cavity walls will
almost always be down to poor construction methods
ie cavitys bridged with mortar or poor pointing rather than insulation transfering moisture.
Granted a partial fill system will almost guarantee no damp by virtue of a free air gap, but only if constructed properly.
If full fill caused that much of a problem then there would be millions of homes with problems amd it would have been abandoned by now.

 

[danzor]

At least they have a Gary Neville

 

[pepparz]

Re: how not to wire your extension

Think hes taken pictures for when he has to take the builder to court!

 

[trev]

Re: how not to wire your extension

At least they have a Gary Neville

Is it accurate and do they know how to use it though.

 

[telectrix]

Re: how not to wire your extension

DOH! just come in on the gary neville. was racking brains, trying to make sense of the post. surprised that a geordie knows what it's for apart from propping the van doors open, though. :46:

 

[jonwade]

Re: how not to wire your extension

OK. I just read the speedfit website and it says:

CAN SPEEDFIT PIPE AND FITTINGS BE BURIED IN A SOLID WALL OR FLOOR?
Speedfit only permit the burying of pipe in screed for use in underfloor heating circuits. Pipe in any other application and Speedfit fittings must never be directly buried.

Speedfit provide a conduit pipe through which the Speedfit Pipe can be laid. If the Speedfit Pipe needs to be replaced, it can be disconnected at each end of the conduit and then pulled out.

Conduit pipe is supplied with an outside diameter of 24mm for use with 15mm pipe and an outside diameter of 30mm for use with 22mm pipe. Both sizes are available in lengths of 25 metres or 50 metres.

Where it is deemed necessary to install fittings in a solid wall or floor, they should be installed in an access box with a removable lid.

The Water Regulations state that pipe or fittings for hot or cold water services laid in any solid wall or floor must be removable.

So it is OK, so long as they put it all in conduit with flexipipes and access boxes?

 

[trev]

Re: how not to wire your extension

Oi! This Geordie knows exactly what they're for. I have several of varying sizes, the little uns are for stirring your tea, medium ones are for hitting plumbers and the big uns as you say are for propping against things.
I also have a laser Gary Neville which is used for putting on make believe Pink Floyd concerts in our house when I've had a few

 

[Geordie Spark]

Re: how not to wire your extension

DOH! just come in on the gary neville. was racking brains, trying to make sense of the post. surprised that a geordie knows what it's for apart from propping the van doors open, though. :46:

Keeky chunt!!


"What does it mean??"

"Wheymann ...... yer waall's not plumb!!!"



Auf Wiedersehen pet!!!

 

[DPG]

Re: how not to wire your extension

Ah, a level ! I was going to ask what it was! Daz

 

[jonwade]

Re: how not to wire your extension

Joking aside for a second - I need to speak to the builder about the plumbing. Is what I said above the way he should be doing it?

 

[telectrix]

Re: how not to wire your extension

speedfit.... joints for plumbers who can't plumb. joints should be accessible and removable. that means in conduit if buried. just imagine a joint leaking in the floor and you have to dig up the concrete to replace/repair.

 

[jonwade]

Re: how not to wire your extension

I have such a headache - stress.

Whenever I mention the fitting they say "this is the way we always do it, push fit has been used for 15 years now no problems".

I have printed out the speedfit info on installing in ground and selotaped it to the radiator. Will insist that it is done as set out by Speedfit.

 

[trev]

Re: how not to wire your extension

Jon, I think you are getting to the stage where you might have to call a halt to the whole thing mate and get independent advice. The institute of plumbing or gas safe might have some form of thing where they'll send someone out to comment on a member's work and whichever CPS operator the spark uses will have a technical helpline. Now the helpline is intended for sparks to get advice but I'm sure if you speak to them they'll point you in the direction of someone who can help.