Resilient bars fitted correctly??

[BotusBuild]

3 hours ago, Nickfromwales said:

Get a friend or two around and crack on 🙃.

She knows where I am (HINT)

[Nickfromwales]

5 hours ago, SteamyTea said:

If the free end (the side the plasterboard screws to) is rubbing against the wall, then there is unnecessary friction, this needs to be avoided.

So I would take it all down, move the bars a few millimetres, and reattach the plasterboard.

The perimeters are secured by scrim and plaster. Moot point afaic. These don’t (can’t) move. 

[SteamyTea]

Just now, Nickfromwales said:

perimeters are secured by scrim and plaster

Secured to what?

If it is the main structure then yes, moot.

But if connected to the plasterboard, effectively an vibrationally isolated box, within a box, then not moot.

[saveasteading]

It's not perfect because we have to deal with reality. I think the sound tests as published  are all done within panels . i.e.no edges.

When I had room to room tests done in a completed project,  all rooms performed a category below what the spec sheets claimed. The tester said this is always the case. 

You'll be relieved to know it was OK.

 

This is what we are doing.. the same as you but added quilt (to be tidied!).

 

 

 

[Nickfromwales]

57 minutes ago, SteamyTea said:

Secured to what?

The feckin walls!

 

[saveasteading]

As another discussion... on some projects that man would need a helmet and thus have to use a lower step. And be on a 400mm platform not a ladder.

 

Myself? I'd approve of bump caps for boarding, they really work if a board drops.

[SteamyTea]

8 minutes ago, Nickfromwales said:

The feckin walls!

 

I think you are misunderstanding me. 

The sprung mass should not touch the main, load bearing, structures.

 

[Adrock]

3 hours ago, saveasteading said:

It's not perfect because we have to deal with reality. I think the sound tests as published  are all done within panels . i.e.no edges.

When I had room to room tests done in a completed project,  all rooms performed a category below what the spec sheets claimed. The tester said this is always the case. 

You'll be relieved to know it was OK.

 

This is what we are doing.. the same as you but added quilt (to be tidied!).

 

 

 

 

Sorry to hijack the thread, I'll be doing a few MF ceilings in a few weeks. 

 

How effective is the ceiling acoustic insulation?

[saveasteading]

33 minutes ago, Adrock said:

How effective

Could you explain please? Do you want comparisons of materials, or decibel reduction numbers or something else.

 

The simple answer is "very".

[Adrock]

Very is good enough for me. Just need to spend more and get covered in horrible fibres again.