Should lagging be installed on copper pipes?

[Possom]

If 15 mm copper pipes are installed in a bathroom behind plasterboard on the wall and under the wooden flooring, should the copper piping be covered with some form of lagging?

If so, should I look for something specific with regards to lagging?

Thanks.

 

[mcmoby69]

Yes. To stop pipes freezing and hot pipes losing heat.

 

[motorbiking]

water bylaw 49 approved lagging.
https://www.toolstation.com/shop/Co...sd2738/Water+Byelaw+49+Pipe+Insulation/p15527

 

[Possom]

I'm intending to have 15mm copper piping installed in the bathroom.

Though, just out of curiosity, if 15mm plastic piping is installed, should lagging be applied to this? I ask as much of the water piping currently in my house is plastic, none of which has lagging.

 

[Madrab]

It's best practice to lag all supply pipes regardless of material and conforms to building regs

 

[motorbiking]

its a bit of a myth that plastic pipe is somehow better insulated than copper, its often an excuse cited by plumbers, but it can make a massive difference, particularly on radiator pipes

 

[TownMan10]

Lag away my friend. Definitely.