Jump to content

Heat and sound insulation


Sjk

Recommended Posts

Hi all

 

i am really keen to get great sound and heat insulation, searching on here if I see many have timber frame or other construction methods. I was wondering what the best way if achieving good results with a brick and block construction? 

 

I dont really have extra space for thicker floors or walls to pad it out with extra insulation, maybe there is higher spec material I can use etc?

 

any way tips are massively appreciated 

Link to comment
Share on other sites

How thick can your walls be? How much insulation are you hoping to have under your floor? Thinnest bang for your u value buck in masonry build is probably single skin blocks and ewi. Cavity wall is possible but to get a decent level of insulation  to you are looking at 200mm cavity and so a wider wall 

  • Thanks 1
Link to comment
Share on other sites

11 minutes ago, scottishjohn said:

start with full spec of house you want to alter ,  and  current insulation levels  if you want meaningful replies for solutions.

 

 

Its very much open, there is no current insulation levels. 

Link to comment
Share on other sites

1 hour ago, Sjk said:

Hi all

 

i am really keen to get great sound and heat insulation, searching on here if I see many have timber frame or other construction methods. I was wondering what the best way if achieving good results with a brick and block construction? 

 

I dont really have extra space for thicker floors or walls to pad it out with extra insulation, maybe there is higher spec material I can use etc?

 

any way tips are massively appreciated 

I Quik answer is yes Brick and block all day long for sound 

Timber is hopeless 

For sound insulation it’s all about keeping walls and cieling Seperate 

as much as possible 

If you go down the route of TF It is well worth hanging a mf cieling 50 mil below the floor joists 

Link to comment
Share on other sites

Interesting, thanks for the replies. 

 

I hadnt thought about single skin with ewi. Excellent to hear about the double acoustic boards :)

 

Likely to use easijoists for the upper floors. 

 

Not it sure how to go about getting sound insulation between bedrooms upstairs. 

Link to comment
Share on other sites

2 hours ago, Sjk said:

Hi all

 

i am really keen to get great sound and heat insulation, searching on here if I see many have timber frame or other construction methods. I was wondering what the best way if achieving good results with a brick and block construction? 

 

I dont really have extra space for thicker floors or walls to pad it out with extra insulation, maybe there is higher spec material I can use etc?

 

any way tips are massively appreciated 

I Quik answer is yes Brick and block all day long for sound 

Timber is hopeless 

For sound insulation it’s all about keeping walls and cieling Seperate 

as much as possible 

If you go down the route of TF It is well worth hanging a mf cieling 50 mil below the floor joists 

 

ive put in a twin wall in MF between the two bathrooms 

You can’t even hear the loo flush when you are stood at the other side of the wall

It all about transfer of sound 

Timber soaks it like a sponge 

Mf is not even 10% of the densety of equivelant timber 

While I don’t claim to be an exspect 

I’ve specialised in sound and fireproofing for over thirty years 

Link to comment
Share on other sites

4 hours ago, nod said:

I Quik answer is yes Brick and block all day long for sound 

Timber is hopeless 

 

It all about transfer of sound 

Timber soaks it like a sponge 

 

I wouldn't quite say timber is hopeless, relative to masonry, correctly designed and built it can perform as well as masonry overall (Rw), however where masonry comes into its own is low frequency resistance as it's got significantly more mass to it. If you compare the low frequency range sound insulation measure (Ctr) masonry is so much better.

Link to comment
Share on other sites

7 hours ago, Sjk said:

Hi all

 

i am really keen to get great sound and heat insulation, searching on here if I see many have timber frame or other construction methods. I was wondering what the best way if achieving good results with a brick and block construction? 

 

I dont really have extra space for thicker floors or walls to pad it out with extra insulation, maybe there is higher spec material I can use etc?

 

any way tips are massively appreciated 

 

Are you looking at internal walls and floors rather than external facade elements?

 

If you are looking at internal spaces, building regs require a minimum sound insulation of Rw 40 dB. This can easily be achieved with standard plasterboard on timber studs with a bit of mineral in the cavity. Or if you are going masonry a 100mm block will do it.

 

If you want to increase over the minimum Rw requirements with timber then look to use additional layers of denser plasterboard (or even resilient bars), or with masonry use denser block.

 

Edited by Moonshine
Link to comment
Share on other sites

I regret not double boarding our ceilings, or soundblock PB. Even though ours meet building regs I have found speech can be heard between floors ?

 

P.S. our build is brick and block and external noise cannot be heard indoors.?

Edited by joe90
Link to comment
Share on other sites

1 hour ago, Moonshine said:

 

I wouldn't quite say timber is hopeless, relative to masonry, correctly designed and built it can perform as well as masonry overall (Rw), however where masonry comes into its own is low frequency resistance as it's got significantly more mass to it. If you compare the low frequency range sound insulation measure (Ctr) masonry is so much better.

I was speaking more about Studwork As aposed to mf

But you will always have more sound transfer on a house that is predominantly timber 

 

But if TF are far more suited to self builders Much quicker to get watertight 

We do blocks of student accommodation in T F Good for us as they are not weather dependant 

Why do the major house builders not go for TF 

They wouldnt sell 

Link to comment
Share on other sites

30 minutes ago, Sjk said:

Looking at at both internal and external. 

 

If you are doing a external wall with two 100mm block, and 100mm cavity noise intrusion won't be an issue, however other facade elements such as glazing and vents are the potential issue.

 

1 minute ago, newhome said:

 

 

4 minutes ago, nod said:

Why do the major house builders not go for TF 

They wouldnt sell 

 

Oh they do, and they do sell. So many use timber framing, e.g. Persimmon do loads of timber frame, so much so they brought a timber frame company, Space 4.

Link to comment
Share on other sites

  • 2 weeks later...

any one got any thoughts on Internal vs External wall insulation? Seriously considering a solid wall.

 

If i had IWI I could have a full brick wall, which would open up some different brick patterns, although this would be more expensive. I should be able to fit all the insulation myself, which I wouldnt be so confident doing with EWI.

 

EWI I could use cheap blocks, and I think the render would be more hard wearing than bricks... Although the bricks specs are as following.

 

Compressive strength ≥ 75N/mm2

Water absorption ≤ 7%

Durability F2

Active soluble salts content S2

Edited by Sjk
Link to comment
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
×
×
  • Create New...