Hello,
I have a dilemma. We bought a house from a modular home manufacturer. We wanted to install solid stave parquet on the upper floor, which was something the house manufacturer could not offer, so it was removed from the contract. When the parquet team was about to start, there was a bit of a panic because the home company had planned the subfloor with a 50 mm polystyrene board (for underfloor heating) and on top of that 13 mm floor gypsum. It is not possible to glue stave parquet on floor gypsum, so it became a dilemma to find another solution. We looked a bit at the flooring industry's recommendations, but the house supplier chose to replace the polystyrene and gypsum with 2* 22 mm floor chipboard and installed 17 mm waterborne underfloor heating in it.
What complicates the matter is that the intermediate floor came in floor cassettes that already had a layer of 22 mm chipboard on them...
So now we have a floor with 3*22 mm chipboard and on top of that 15 mm stave parquet. Instead of 1*22 mm chipboard, 50 mm polystyrene, 13 mm floor gypsum, and then laminate parquet. The new floor solution is therefore significantly heavier per sqm. Could this lead to problems in the future? We are also a bit concerned if they have CC 1200 in the floor cassettes instead of CC 600. If so, I assume the risk of deflection increases?
I have a dilemma. We bought a house from a modular home manufacturer. We wanted to install solid stave parquet on the upper floor, which was something the house manufacturer could not offer, so it was removed from the contract. When the parquet team was about to start, there was a bit of a panic because the home company had planned the subfloor with a 50 mm polystyrene board (for underfloor heating) and on top of that 13 mm floor gypsum. It is not possible to glue stave parquet on floor gypsum, so it became a dilemma to find another solution. We looked a bit at the flooring industry's recommendations, but the house supplier chose to replace the polystyrene and gypsum with 2* 22 mm floor chipboard and installed 17 mm waterborne underfloor heating in it.
What complicates the matter is that the intermediate floor came in floor cassettes that already had a layer of 22 mm chipboard on them...
So now we have a floor with 3*22 mm chipboard and on top of that 15 mm stave parquet. Instead of 1*22 mm chipboard, 50 mm polystyrene, 13 mm floor gypsum, and then laminate parquet. The new floor solution is therefore significantly heavier per sqm. Could this lead to problems in the future? We are also a bit concerned if they have CC 1200 in the floor cassettes instead of CC 600. If so, I assume the risk of deflection increases?
Today's excessive use of underfloor heating creates problems. I am not entirely convinced that underfloor heating is optimal under parquet flooring.
In order to assess the consequences of your choices and unexpected deliveries, one needs to know the dimensions of the floor joists, the c/c distance and span, as well as how the chipboards are joined between the layers.
In order to assess the consequences of your choices and unexpected deliveries, one needs to know the dimensions of the floor joists, the c/c distance and span, as well as how the chipboards are joined between the layers.