floor beams, extra load

[svouts]

Hello, I am doing some sound insulation work between two Victorian conversion flats and I am not sure if the floor beams will hold the extra load. Upstairs is the reception room of the one flat (where sometimes 4-5 guys watch TV) and downstairs a bedroom.
The room is 3 x 4 m, so 12 m² and I am installing the following materials:
Floor:
Rubber carpet underlay, 4kg/m², total 48 kg.
Ceiling:
Tecsound 50 rubber sheet, 5kg/m², total 60 kg.
Accoustic plaster board 15mm, 12.6kg/m², total 151.2 kg.
Resilient bars and drywall screws, approximately 10 kg.

In total the extra load will be around 270 kg.

Is it OK? Or the extra 270 kg load with 4-5 guys upstairs may break the floor/ceiling?

 

[Static]

Who knows..

Would really depend on what material makes up the floor in question.. you infer that it consists of floor beams, can only assume you mean timber joists and not concrete or steels..

Only way to know if they can take the load is give some idea of size of joist (W x D), spacing and length between load bearing walls..

 

[svouts]

Yes, I mean timber joists but I am not sure of their dimensions and the distance between them since they are behind the ceiling. Any other way to check this?

 

[tony1851]

If you are putting rubber underlay on the floor, do you mean the floor you are insulating? If so, then presumably you are putting on top of the floor, so can you lift a floor board above to check?
As Static said, you have to know section-size, spacing and span to make an assessment.

 

[svouts]

It was a heavy duty rubber carpet underlay which the owner allowed me to install in the flat upstairs. Then I was waiting to see if it was enough to solve the noise problem. I do not have access on the flat upstairs anymore. This has reduced a bit the problem (mostly the impact sound) but I also have to do insulation on the ceiling to my flat downstairs to further reduce noise (mostly the airborne noise).