Would appreciate views/advice from plumbers...
As part of a building project, we had some central heating radiators installed with 15mm plastic speedfit supply & return pipes running beneath the concrete screed (& insulation) on the ground floor but there is a problem of a hot floor surface close to one radiator. The concrete screed has now fully dried out and I'm ready to have the floor prepared to lay sheet vinyl flooring.
This 'problem' radiator was installed just inside the old part of the building, around a couple of feet from where the new floor joins the old. For most of the run, the pipes supplying this radiator run deep in the new flooring but then rise close to the surface for the last couple of feet in the old floor. The pipes run in a shallow channel cut into the old floor which was then covered by concrete screed at the same time as the entire new floor was screeded. Not surprisingly, it's above this shallow channel where the floor gets quite hot. I measured a surface floor temperature of 47C. From what I read, that's far too hot to lay sheet vinyl - though it would be helpful if someone with experience could confirm that.
My question is: how would a proficient plumber have installed plastic pipes in the old part of the floor to prevent such a hot floor surface. Measurement details (e.g. depths) would be helpful, as would details of any insulation you would use, thanks.
As part of a building project, we had some central heating radiators installed with 15mm plastic speedfit supply & return pipes running beneath the concrete screed (& insulation) on the ground floor but there is a problem of a hot floor surface close to one radiator. The concrete screed has now fully dried out and I'm ready to have the floor prepared to lay sheet vinyl flooring.
This 'problem' radiator was installed just inside the old part of the building, around a couple of feet from where the new floor joins the old. For most of the run, the pipes supplying this radiator run deep in the new flooring but then rise close to the surface for the last couple of feet in the old floor. The pipes run in a shallow channel cut into the old floor which was then covered by concrete screed at the same time as the entire new floor was screeded. Not surprisingly, it's above this shallow channel where the floor gets quite hot. I measured a surface floor temperature of 47C. From what I read, that's far too hot to lay sheet vinyl - though it would be helpful if someone with experience could confirm that.
My question is: how would a proficient plumber have installed plastic pipes in the old part of the floor to prevent such a hot floor surface. Measurement details (e.g. depths) would be helpful, as would details of any insulation you would use, thanks.
