How much depth needed to bury hearing pipes? And how to cover?

[JP_]

Need to bury these flow and return pipes (to save my toes) so have dug out some concrete for the plumber. How much room is needed to properly run under the floor?

Will eventually put down laminate flooring. Rest of area is suspended wood, but I don't want to take out all the concrete as it's bloody solid. After lagging can i bury the pipes in concrete?

 

[ianmcd]

as long as you wrap them , then yes, the lime in the screed will eat the copper if you dont wrap them

 

[JP_]

is there a concrete / screed mix that does not eat into pipes?
are pvc coated pipes good in these situations?
It's on the corner, not where anybody would step, could I just foam fill then board over?

 

[Madrab]

All the pipes need are to be taped, gaffer tape etc will suffice before covering. Most mortar/concrete will have ingredients that will slowly corrode copper so they would always need to be taped if they can come into contact with concrete.

 

[ianmcd]

are pvc coated pipes good in these situations?

yes they will be fine as long as the coating doesnt have any scratches or Nicks in it, as @Madrab says cating with Gaffer tape will be enough

 

[JP_]

thanks, will use loads of tape then.

 

[vxxbcks]

Bear in mind copper expands. Use a foam lagging that provides protection and provision for movement such as Armaflex class-O.

 

[JP_]

thanks, will do. I guess that answers the question about depth - need room for lagging for both pipes..