Cladding/casing wastewater pipe

Hello,

in our utility room (new building) the water supply enters the house and from the ceiling comes the wastewater pipe with ventilation over the roof (the bathroom is above the utility room).

I was able to detect condensate mainly on the water supply and slightly on the wastewater pipe. The warm air condenses on the cold pipes here (as you read everywhere).

I have wrapped all the pipes here with an insulating tape. It consists of a kind of wool and is not supposed to absorb moisture. When I now touch the pipes, they are no longer cold, and I don’t have any more condensate there.

Recently, due to another issue, the executing plumbing company came and said that it should be removed again because otherwise mold would probably form underneath. I cannot understand that since condensate always appears where warm air meets cold. That is no longer the case now.

So what is correct?

Additionally, I have boxed in the drain pipe to make it look nicer and because a utility room kitchen will be installed there and the countertop can connect better that way.

Yesterday my neighbor wrote to me that he apparently had to remove his pipe boxing because it became damp behind it… that also actually can’t be, right?

Attached are a few pictures… looking forward to tips…





Here from the neighbor...

My pipes in the utility room are also enclosed. And so far, I have not noticed any condensation.

Whether it still condenses after insulation or not, I can't say. It feels like it mainly condenses for me in the summer. I think it's dangerous to conclude from now to the whole year.

Here's a small tip. If I see it correctly, this is a pressure reducer with a filter, right? At least mine has an outlet at the bottom. For me, it starts to drip slightly after a few months. That gradually gets a bit more. That's why I have a catch basin underneath. When I see that there is some water in it, it gets cleaned. If it were behind a covering, I would never think of that and would have already had some water damage.

I can't say whether it still condenses after insulation or not. I feel like it mainly condenses for me in the summer. I think it's dangerous to extrapolate from now to the whole year.

Here’s a little tip. If I see it correctly, that's a pressure reducer with a filter, right? At least mine has an outlet at the bottom. Mine starts to drip slightly after a few months. This gradually increases a bit more. That's why I have a collection container attached at the bottom. If I see that there is some water inside, it gets cleaned. If it were behind a panel, I would never think about it and would have already had some water damage.

The pressure reducer does not carbonate. A kitchen cabinet will be placed there, with the back side prepared accordingly so that everything is easily accessible.

So the drain pipes are boxed in by the general contractor in our case. However, to my knowledge without any insulation. At the point where the pipe has the access opening, I had a small door installed. I checked in there recently. But I did not find any moisture on the pipe. It looks like you insulated the access opening?

So the drainpipes were foamed by the general contractor for us. As far as I know, however, without any insulation. At the spot where the pipe has the inspection opening, I had a small door installed. I recently looked inside there. But I did not detect any moisture on the pipe.
It looks like you insulated the inspection opening?

But Murano, so that it can still be opened.