Pipe lagging

[geraldthehamster]

My father's new house has an internal cupboard containing the rising main, stop cock and water meter. There is loads of condensation on the pipes, which has been going on for so long that the fllorboards are wet. There is foam pipe lagging but it's not been zip tied and there are sharp bends in the pipes.

Simple question - would I be better off fitting foam lagging, or using the wraparound type because of the sharp bends? If the latter, should I use the old wool type, or is the Superfoil bubble wrap type stuff better?

 

[CBW]

Is there any heat source in there or a leak somewhere causing the condensation? Perhaps a trickling toilet? I think you can purchase bends for foam, or make your own: https://www.skil.co.uk/step-by-step/how-to-insulate-pipes.html or use the wrap around stuff.

 

[geraldthehamster]

Is there any heat source in there or a leak somewhere causing the condensation? Perhaps a trickling toilet? I think you can purchase bends for foam, or make your own: https://www.skil.co.uk/step-by-step/how-to-insulate-pipes.html or use the wrap around stuff.

The cupboard is small and at floor level; it houses the above and incoming gas. So it's always cold in there because the doors are shut and there are openings to the under floor void. And the water pipes contain cold water straight out of the ground. The water meter seals have been replaced and the stop cock is not leaking. In any case the pipes *above* any possible leak are wet.

There is a bathroom on the other side of the wall, where the pipes go into a boiler in a cupboard immediately behind the problem area, so that is worth checking for leaks as well. But I think water would still need to be running uphill, which it doesn't