Insulate intermediate floors??

  • Erstellt am 2010-05-18 16:32:06

rauebertochter

2010-05-18 16:32:06
  • #1
Hello,

At the beginning of the year, we bought an almost 100-year-old detached house, which we are currently renovating extensively. Now I have some questions about the floor, substructure, and insulation of the intermediate floors. (Unfortunately, we cannot insulate the exterior walls because it is a listed building.)

The current state is as follows:

Cellar: uninhabited, only used as a cellar, and will remain so
Ground floor: uneven concrete ceiling
1st floor and attic: rafters with 50cm spacing, ceiling below
We want to convert and inhabit the attic. For this purpose, the roof will be re-covered, including insulation and sealing, etc.

What about the intermediate floors? Do I have to insulate, and what would be an affordable alternative? Styrofoam, fiberglass, ... other (better ideas). The rafters are very deep, so there is about 20cm of air between the ceiling and the top of the rafters. Does this space have to be completely filled, or can, for example, Styrofoam with a thickness of only 10cm be used?

How do I best insulate the cellar ceiling or the floor on the ground floor?

Do you have any ideas for an affordable substructure (OSB, chipboard..??) Or can real wood boards be laid directly on the rafters?

Initially, we planned real wood boards, but now everything from laminate, parquet to wood boards is possible, as long as it is feasible within budget.

In total, it is 120m² of floor. We have budgeted around €5000 for the floor, complete with insulation, impact sound insulation, substructure, floor, and skirting boards. Is that realistic? We can do the work ourselves.

I am grateful for any tips!!
 

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