Best Pipe Lagging to avoid sub- zero stop-tap water Freezing

[Jeff543]

My stop- gap pipe is not near any of our radiators, that area gets very cold. I'm concerned that the water will freeze. Any tips on best lagging?

 

[JohnD]

Do you mean stop-tap?

The incoming water supply?

Is it inside the house?

 

[Jeff543]

Do you mean stop-tap?

The incoming water supply?

Is it inside the house?

yes but no radiator there. Its by the front door.

I've only had a boiler since last winter. |Before that the pipes would freeze every winter when we had a couple of days of sub zero temperatures

 

[opps]

If you aren't on a water meter, leaving a basin/sink/garden tap, very slightly open, may be enough to prevent the pipe from freezing.

I am not a plumber though...

 

[Madrab]

A picture would help enormously. If it is in a cupboard or similarly non heated space then just wrap it in loads of loft insulation.

 

[JohnD]

yes but no radiator there. Its by the front door.

If it is inside a heated house it is most unlikely to freeze.

You can use stiff plastic foam pipe lagging, which is like slitted tube. The thicker the better. Foam has twice the insulating power as the same thickness of mineral wool. Felt is not much good.

If it is against a cold external wall, insulate it from the cold wall rather than the warm room.

Examples

Wickes.co.uk

Search results for Lagging on Wickes.co.uk

www.wickes.co.uk

 

[Jeff543]

Do you mean stop-tap?

The incoming water supply?

Is it inside the house?

 

[Jeff543]

If it is inside a heated house it is most unlikely to freeze.

 

[Jeff543]

A picture would help enormously. If it is in a cupboard or similarly non heated space then just wrap it in loads of loft insulation.

 

[Jeff543]

If it is inside a heated house it is most unlikely to freeze.

Really? There are no radiators near it which is what I emphasised in my OP. Now if my stop-tap was near a radiator in a bedroom then yeah i understand your point...but as you can now see ,it isn't ,it's in a cupboard in the hall....freezing cold

 

[Madrab]

Keeping clear of the electrical supply, if it's that cold then I'd cover all of that with loft insulation and then wrap it up in a black plastic bag and then tape it up, just for the winter

 

[livingstoned]

If it gets to -10° outside, you could have a problem,. but not at zero , I think. Put a wee pot of water down there as an indicator. Or a thermometer!
Remember the floor won't get anything like as cold as the air outside, so any sort of cover over the lot like a cardboard box would probably do enough.
All depends where you live!

 

[JohnD]

It looks like it comes up through the floor. Is it a concrete floor, or wooden, with a void beneath?

Look outside, where are the airbricks?

The front will be an external wall, but what is on the other side of the other wall?

Where is the nearest electrical socket?

Is it in a cupboard?

 

[robinbanks]

K flex lagging would be easier to work with in a location like that than the rigid grey foam pipe lagging that is already fitted, though perhaps even simpler to shroud the lot in expanding foam