Uk builder ( plumber ) various concrete mixes have chemicals such as lime that attack the copper plus PVC, the real trouble with copper is that it struggles to expand as it heats and as such bursts the joints, poly pipe or any plastic push fits also need to expand but also are attacked by the concrete over time. The heat loss through the concrete as it is heating and the nature of what you are doing is not allowed under new building regs. It can be sleeved or trunked, even bridged, the best solution is to put foam insulation, the gray tube type( large size ) you will find in any DIY Shop like Wickes and tape the joints and join with Duck tape. This will not only protect the pipes from chemical attack it will insulate plus let the pipes expand. If you then use copper pipe and solder the fittings it will last forever, or use Hep or Poly pipe roll as suggested earlier as no joints plus if you build an access at each end if you needed to remove or do work you could just pull it out. Happy Days..............
I dont know why you would want to lay copper. It is expensive and labor intensive. A better solution would be to put down at least 1" EXTRUDED foam not expanded foam insulation and then place cross linked polyethylene pipe (pex)and make your pour over this. This pipe is very durable and has a good chance of surviving a freeze. The open channel method will allow monitoring and repair but it is costly to install and you still have to remove the finish floor to access. if you cover and pour the efficiency of heat transfer is impaired. if it freezes your left with forced air as a replacement.
If you are a beginner or have done some woodworking you will find these plans easy-to-follow as the instructions are very clearly written https://tinyurl.im/aHLIO The woodworking plans are straightforward so they are not complicated at all. Even if you are a total newcomer to woodworking you will simply be able to master all the techniques that are needed and the woodworking skills very quickly by following the concise and clear instructions. Another thing which is so great about these woodworking plans is that there have been some videos included and there are some to guide you in how to build benches home furniture dog houses bird feeders sheds and much much more.
DONT lay any copper into concrete, it Will rot and leack. Expansion and contraction will also be a major problem. As your laying your floor place a length of wood down and remove it before your concrete cures to form a channel, protect all pipes with a greased tape before covering them with a wooden cap. A good point is to spread a bitumen based dpc in the channel, b4 laying your pipes.
Sir.. Do not pour concrete over copper piping. The copper will carode in a matter of a year or two. You need to use pvc heating lines that are made soley for this purpose. This is just some advice. You need to do it the right way.
The pipe should be covered with Denso tape. This will protect the pipe from lime in the screed and allow for small amounts of expansion and contraction.
instead of copper pipe use the plastic pipe anc use an elbow to come out of the floor in copper ..no protection needed the pipes should be laid in the screed ..not the concrete ..if in cocrete you should form a duct and you will need access lid ..screeds easier
Answers & Comments
Verified answer
Uk builder ( plumber ) various concrete mixes have chemicals such as lime that attack the copper plus PVC, the real trouble with copper is that it struggles to expand as it heats and as such bursts the joints, poly pipe or any plastic push fits also need to expand but also are attacked by the concrete over time. The heat loss through the concrete as it is heating and the nature of what you are doing is not allowed under new building regs. It can be sleeved or trunked, even bridged, the best solution is to put foam insulation, the gray tube type( large size ) you will find in any DIY Shop like Wickes and tape the joints and join with Duck tape. This will not only protect the pipes from chemical attack it will insulate plus let the pipes expand. If you then use copper pipe and solder the fittings it will last forever, or use Hep or Poly pipe roll as suggested earlier as no joints plus if you build an access at each end if you needed to remove or do work you could just pull it out. Happy Days..............
This Site Might Help You.
RE:
Im relaying a concrete floor, and want to lay copper 15mm cental heating pipes in it, whats way to protect?
Copper Pipes In Concrete
im relaying concrete floor lay copper 15mm cental heating pipes whats protect
I dont know why you would want to lay copper. It is expensive and labor intensive. A better solution would be to put down at least 1" EXTRUDED foam not expanded foam insulation and then place cross linked polyethylene pipe (pex)and make your pour over this. This pipe is very durable and has a good chance of surviving a freeze. The open channel method will allow monitoring and repair but it is costly to install and you still have to remove the finish floor to access. if you cover and pour the efficiency of heat transfer is impaired. if it freezes your left with forced air as a replacement.
If you are a beginner or have done some woodworking you will find these plans easy-to-follow as the instructions are very clearly written https://tinyurl.im/aHLIO The woodworking plans are straightforward so they are not complicated at all. Even if you are a total newcomer to woodworking you will simply be able to master all the techniques that are needed and the woodworking skills very quickly by following the concise and clear instructions. Another thing which is so great about these woodworking plans is that there have been some videos included and there are some to guide you in how to build benches home furniture dog houses bird feeders sheds and much much more.
DONT lay any copper into concrete, it Will rot and leack. Expansion and contraction will also be a major problem. As your laying your floor place a length of wood down and remove it before your concrete cures to form a channel, protect all pipes with a greased tape before covering them with a wooden cap. A good point is to spread a bitumen based dpc in the channel, b4 laying your pipes.
Sir.. Do not pour concrete over copper piping. The copper will carode in a matter of a year or two. You need to use pvc heating lines that are made soley for this purpose. This is just some advice. You need to do it the right way.
For the best answers, search on this site https://smarturl.im/aD1Fh
The pipe should be covered with Denso tape. This will protect the pipe from lime in the screed and allow for small amounts of expansion and contraction.
instead of copper pipe use the plastic pipe anc use an elbow to come out of the floor in copper ..no protection needed the pipes should be laid in the screed ..not the concrete ..if in cocrete you should form a duct and you will need access lid ..screeds easier