Isolation between 2 inhabited floors

[Christophe]

Ok but if you want to make a "cork" then in your place I would rather use the old glass wool ... than cotton wool because this one does not really have internal cohesion ... so in a few months or years your plug of compacted cotton wool may no longer exist.

[moby25]

yes it's true, i think it's better

please

[moby25]

this is what I finally did:



here is a picture of the insulation work

lining of ba13 panels with actis wood fiber 100mm





In the end, maybe I should have taken 120, because even if it means doing as much as possible. But good 100mm of wood wool is already very insulating ;-)

Insulation of the lost roof space with cellulose wadding:




I hope that the glass wool "plugs" are something durable and not harmful to the wooden structure in the event of moisture accumulation etc ...

Otherwise, the results are convincing!
I lose calories noticeably slower, usually I lose degrees much faster.

[moby25]

I have a question concerning the non-thermal insulation between 2 inhabited floors.

Is the heat loss still appreciable?
In my case, the room under the living room, loses heat faster than that below the cotton wool.

[moby25]

hello i have a new question:

the 2nd bedroom overlooks part of the peron which means that the exterior is below the floor.

In this room, it is cooler than in the other

Here is what is currently being done:




Do I have to do anything to insulate the part of the floor "above the outside".

Thank you

[moby25]

Hello everyone

I wonder if I did not create a mini thermal bridge during my insulation.
Indeed, the ba13 plate is between the glass wool of the roof and the wood wool laid.
I wonder if the heat does not pass through the ba13 which protrudes from any insulation.

explanation in photo:

[Christophe]

Moby stp edit your messages and put the images on our host ... https://www.econologie.com/forums/comment-me ... t1176.html

It seems to me that I already told you ...

[moby25]

Hello

I ask myself a question when not isolating between 2 inhabited floors.

Indeed I find that I lose heat faster below the rooms and where it is not isolated.

In what order of magnitude are these losses towards the upper room.

In my case I find that this non-insulation is responsible for a fairly rapid loss of heat and therefore detracts from the comfort of the room.

[swift2540]

In what order of magnitude are these losses towards the upper room.

Hi,
it is the most important loss since the heat rises. This is also why we insulate + the roof than the walls.
Otherwise it is calculated with the R as for any wall.
At home, if I have seen the photos (it is late), your floor is on concrete slabs. And this slab goes outside. This floor of floor is insulated by the plug which you described but the ceiling of the ground floor is it insulated from this slab? Otherwise this is a beautiful thermal bridge
@+

[moby25]

In fact the slab is a wooden floor on agglomerated joist. It is not isolated because I have a floor above.

I was just asking if there were a lot of losses from one floor to another.