Help with acoustic insulation

[Mike_scotland]

Hey group,

 

Can anyone recommend a good level of acoustic insulation? Currently on the building warrant its 25mm acoustic wool but i imagine thats the minimum/basic between the rooms, im hoping to get some good sound proofing.

 

Thanks in advance!

[nod]

If your only insulating between rooms 25 mil of acoustic is normal 

It’s literally to stop the sound rattling around 

The majority I use on commercial is 25 and 50 

 

[Mike_scotland]

24 minutes ago, nod said:

If your only insulating between rooms 25 mil of acoustic is normal 

It’s literally to stop the sound rattling around 

The majority I use on commercial is 25 and 50 

 

Is that good enough do you think m8?

[nod]

21 minutes ago, Mike_scotland said:

Is that good enough do you think m8?

There’s a lot of confusion with soundproofing 

Many of the house builders have us filling bathroom and toilet walls with 70 mil of loft insulation Which does hardly anything 

We fill office and split student rooms with 25 mil 

Party walls between blocks with 50 mil

As long as you use Acoustic (ISO) 

25 mil Will do the job 

100 mil lap at the top and bottom Staples to hold it in place 

[nod]

53 minutes ago, nod said:

There’s a lot of confusion with soundproofing 

Many of the house builders have us filling bathroom and toilet walls with 70 mil of loft insulation Which does hardly anything 

We fill office and split student rooms with 25 mil 

Party walls between blocks with 50 mil

As long as you use Acoustic (ISO) 

25 mil Will do the job 

100 mil lap at the top and bottom Staples to hold it in place 

?

[Nickfromwales]

I've never seen less than 75mm installed on domestic B-Regs installs. I usually spec 100mm acoustic with soil / waste pipes 'boxed in' to eliminate the noise of water flowing.

I would not want 25mm in my house tbh, and didn't even know this could be bought at 25mm!!

[Nickfromwales]

5 hours ago, Mike_scotland said:

im hoping to get some good sound proofing.

75mm minimum, 100mm better. Box ( surround ) all waste pipes with the same as well as you can.

[Mike]

On 04/12/2021 at 20:37, Mike_scotland said:

Can anyone recommend a good level of acoustic insulation?

It depends what you want to achieve - it's not only the insulation quit - it's also all the other components of the partition, and whether you're only concerned with airborne sound, or if impact sound is an issue. Knauf and British Gypsum both produce useful guides.

 

FWIW, the partitions on my next project will have staggered studs to physically & acoustically separate the two faces of the partition, with 1 layer of ply and 1 of plasterboard each side, 50mm acoustic quit between, and acoustic sealant at all edges and joints.

 

If I was using all plasterboard instead of plasterboard + ply, that would give me 57dB nominal sound insulation.

Edited December 6, 2021 by Mike

[SuperJohnG]

@Mike_scotland what did you end up doing? I'm in the same stage right now and swithering to just get lots of 50mm or put 25mm somewhere?

[Arnold9801]

I'm about to buy 100mm acoustic insulation from b&q for above the downstairs ceilings/upstairs floor and hope this, will suffice? 

 

Anybody willing to comment. It would be appreciated. 

 

Arnold9801 

[Thorfun]

1 hour ago, Arnold9801 said:

Anybody willing to comment. It would be appreciated. 

is B&Q really cheaper than ordering online?

[Arnold9801]

2 hours ago, Thorfun said:

is B&Q really cheaper than ordering online?

B&q are giving me a good deal.

 

 

[Thorfun]

8 hours ago, Arnold9801 said:

B&q are giving me a good deal.

 

 

Interesting. Will add them to my search list in the future 

[PeterW]

9 hours ago, Arnold9801 said:

B&q are giving me a good deal.

 

 

care to share as Wickes on the face of it are 15% cheaper than Tradepoint (B&Q) so are they price matching ..?