false ceiling joists on bottom of RSJ

[robspaceman]

A previous owner of my ground floor flat removed an internal wall between two rooms and replaced it with an RSJ directly supporting the joists above.

I am planning to install a false ceiling to cut down on the noise from my upstairs neighbour.

It seems feasible to me to rest one end of the new ceiling joists - which will only be supporting the new double plasterboard ceiling, not the floor above - on the bottom "lip" of the RSJ. I would also put noggins in between them along the line of the RSJ.

Is this crazy or acceptable?

Any advice gratefully received.

PS I wasn't sure where to post this on the forum as I couldn't find a ceiling section. Sorry if it's in the wrong place!

 

[PrenticeBoyofDerry]

which will only be supporting the new double plasterboard ceiling, not the floor above?

So what is supporting the floor above?

Is this crazy or acceptable?

it is not crazy, generally RSJs are over engineered. But a structural engineer would/should have done the calcs, they would be the best to approach, regarding loading.

 

[freddiemercurystwin]

It'll be fine.

 

[robspaceman]

which will only be supporting the new double plasterboard ceiling, not the floor above?

So what is supporting the floor above?

Is this crazy or acceptable?

it is not crazy, generally RSJs are over engineered. But a structural engineer would/should have done the calcs, they would be the best to approach, regarding loading.

The flat top of the RSJ is supporting the floor (and the wall) above. It's an I beam and I was thinking of using the lower lip of the bottom of the I to support the ceiling joists. Sorry if it's not too clear without pics, I'll try and get some.

Thanks for the replies by the way.

 

[PrenticeBoyofDerry]

I doubt you will have any issues, providing the RSJ was engineered correctly.