Complete old insulation in the wall from inside?

[CissiLR]

Hello!
I live in a plastered house from the 1930s where the insulation (in the form of straw or similar) has settled at the bottom of the wall. I can't insulate from the outside due to the plaster, and despite underfloor heating, a heated basement, cellulose insulation in the attic, and new windows, we can't get it warm. I believe the walls are completely empty of insulation. Is it possible to "fill" with loose insulation from the inside by making holes in the wall without having to tear anything down? I don't plan to do this myself but wanted to hear if anyone has experience with this. Thanks in advance!

 

[Åbyfor]

Hello!
I live in a plastered house from the 1930s where the insulation (in the form of straw or similar) has settled at the bottom of the wall. I can't insulate from the outside due to the plaster and despite underfloor heating, a heated basement, loose-fill insulated attic, and new windows, we can't get it warm. I believe the walls are completely empty of insulation. Can insulation be "topped up" with loose-fill insulation from the inside through holes in the wall without having to tear it down? I'm not planning to do this myself but wanted to hear if anyone has experience with this. Thanks in advance!

No experience with exactly the type of house you have... However, it might be worth getting hold of an IR thermometer to figure out where it is coldest. There are, of course, also companies/people with cameras for this. Once you know this, it might be a good idea to consider injecting loose-fill insulation/taking down a wall from the inside.

 

[fribygg]

How are the walls constructed?

If it is a similar construction to sawdust insulated walls, hopefully, you can add insulation from the attic.