Capping installation methods

[gazdkw82]

I know it's the basic of questions but I'm starting to question how I install capping.

I do much work with it as most work that involes domestic work is usually just for friends or family.

However, Everytime I do it I always think there must be an easier way. I've tried mortar nails through the capping and in the mortar, screws through the capping into plugs and screws just to the side into plugs. All seem to have benefits and negatives.

Any other methods?

 

[123]

Out of curiosity 123, do you run tw&e down those conduits?

PVC/PVC yes, could be twin and earth, Single Brown or Blue, Blue or Brown & Earth, 3 Core and earth. All available on the shelf at any wholesalers, but good luck finding anywhere with 1.0mm T&E.

Dot and Dab is also next to never seen on brick walls in new builds, it's all floated out with sand and cement.

 

[Midwest]

Oh okay. Was just thinking of getting a few cables down a 20mm, suppose you go up to 25mm etc. Apart from the obvious protection from DIY'ers putting up their shelves on a Sunday, why do you do it? Must put the price up.

PS we don't have brick walls over her', block work mostly and the inevitable timber frames.

 

[123]

Oh okay. Was just thinking of getting a few cables down a 20mm, suppose you go up to 25mm etc. Apart from the obvious protection from DIY'ers putting up their shelves on a Sunday, why do you do it? Must put the price up.

PS we don't have brick walls over her', block work mostly and the inevitable timber frames.

We have plenty of timber framed builds as well, conduit not used for that.

If needed we add a 2nd 20mm conduit.

If it's a new build I'd bring in a company to track the walls. If it's a revamp or a kitchen etc it's most likely conduits will already be there, so can often be reused. If it's a kitchen install putting a socket in the adjoining unit is frowned upon (generally), either isolators above worktop or all isolators into a larder unit.

For a small amount of water, theirs quite a difference in how we do things and in Northern Ireland we work to BS7671.

 

[Midwest]

We have plenty of timber framed builds as well, conduit not used for that.

If needed we add a 2nd 20mm conduit.

If it's a new build I'd bring in a company to track the walls. If it's a revamp or a kitchen etc it's most likely conduits will already be there, so can often be reused. If it's a kitchen install putting a socket in the adjoining unit is frowned upon (generally), either isolators above worktop or all isolators into a larder unit.

For a small amount of water, theirs quite a difference in how we do things and in Northern Ireland we work to BS7671.

So why the conduit?

 

[123]

So why the conduit?

Why the capping?

 

[Midwest]

Why the capping?

You know you tinker; only to protect from a plasterers trowel, bit plastic capping can do that. And imo, any ingredients in the wall covering.

So why metal conduit?

 

[a-z electrics]

Spanish plaster.. it goes off in 90 seconds. And that's the retardant stuff! Rapido sets on your trowel just as about to push it on..

 

[rapparee]

I'm waiting for our NI (& Ireland) colleagues, who tell us all off and insist on conduit.

fixed with robertson square drive screw heads no doubt. i've got some of them just to pi$$ off young sparks after i'm dead and departed this earth. .

Nice to know you guys read my posts

 

[DPG]

Not sure if this is relevant but I'm at the local club and I need 14 for a full house. Not sure if the regs cover this but appreciate any help guys. And galls sparkychops. Ta.

 

[Midwest]

Nice to know you guys read my posts

Do please more expand.

 

[rapparee]

Do please more expand.

I was on a rant a few weeks ago proclaiming the greatness of screwlux/Robertson screws and I've mentioned it before a year or so ago.

 

[Midwest]

I was on a rant a few weeks ago proclaiming the greatness of screwlux/Robertson screws and I've mentioned it before a year or so ago.

Ohhh, thought you were going to answer my question about the isle of Ireland using metal conduit, in preference to other products.

 

[rapparee]

Ohhh, thought you were going to answer my question about the isle of Ireland using metal conduit, in preference to other products.

That's not true

We have no problem using pvc conduit in tracked walls.

We just don't use capping. I think it is seen as cowboyish (rightly or wrongly)

 

[davesparks]

You know you tinker; only to protect from a plasterers trowel, bit plastic capping can do that. And imo, any ingredients in the wall covering.

So why metal conduit?

I think they use PVC not metal

 

[Midwest]

I think they use PVC not metal

My memory is a bit hazy, but I'm sure metal conduit has been mentioned before.

 

[Midwest]

That's not true

We have no problem using pvc conduit in tracked walls.

We just don't use capping. I think it is seen as cowboyish (rightly or wrongly)

I'm not convinced myself, but hey hoe, who am I to say.

Must get slightly difficult at switch drops, with a few multi ganged switches?

 

[123]

My memory is a bit hazy, but I'm sure metal conduit has been mentioned before.

Not sure where? PVC Light Gauge Conduit tracked into walls is generally what we use.

I'm not convinced myself, but hey hoe, who am I to say.

Must get slightly difficult at switch drops, with a few multi ganged switches?

Not really, a 3 gang switch could have as little as 1 Twin & Earth and 2 PVC/PVC Single Browns at it.

 

[Midwest]

Ok I misconstrued you.

Still wouldn't faff around using plastic conduit in dwelling

 

[123]

Ok I misconstrued you.

Still wouldn't faff around using plastic conduit in dwelling

And I wouldn't faff around filling the chases after a rewire, that's what a plasterer is for lol.

I don't see how it takes any longer - on a new build I'll have subbed in a wall tracking company to do the donkey work. The wall's are floated out then skimmed no dot and dab here really. On a rewire, refurb or kitchen etc, the wall's would need tracked wider for capping and there is no faffing in trying to get screws or nails in for conduit

 

[davesparks]

The way I was taught is capping for unplastered walls and oval conduit for chases.