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Sound proofing


bigrod
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I’m in the process of converting the top floor into a cinema/mancave and an office for Diane ..Being basically a lightweight construction building and open plan around a steel frame, sounds carry throughout the house up to the top floor ..fortunately we do have a small snug where we tend to watch the telly which is a bit more isolated on the ground floor..

I’m looking at various ways of soundproofing the floor in the mancave .. I was going to use a flexible screed until my bro came across a material they were using in a hospital to fit under expansion joints in the audible centre ie hearing problems where an absolute noiseless environment is required when doing tests 

The first thing is it’s fire proof which is a necessity in any loft conversion .. it’s a sandwich of plastisized resin between sheets of aluminium foil and fire proof foam .although it can be bent its cuttable with a Stanley knife . Overall it’s about 8mm .. Gotta say I’m a bit of a materials nerd but I’ve never come across this material before .. it comes in  rolls like a carpet and I reckon it’s just what I need to do the floor and a couple of the walls before I put acoustic plasterboard up .Fortunately my bro has enough to do the job I require ..

D24D58C2-2FD2-47A9-A495-FB763C627497.jpeg

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Wow that looks great.  Resilient bars will also be your friend.  They worked a treat in the last place that we lived in (in the UK) and we never ever heard the neighbours.

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4 hours ago, DomT said:

Wow that looks great.  Resilient bars will also be your friend.  They worked a treat in the last place that we lived in (in the UK) and we never ever heard the neighbours.

Do tell me more about those Dom- sounds interesting.

Another material for consideration?

Soundproof Insulation | 3mm Sound Insulation Membrane | Acoustiblok UK

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47 minutes ago, VanDerGraaf said:

Do tell me more about those Dom- sounds interesting.

Another material for consideration?

Soundproof Insulation | 3mm Sound Insulation Membrane | Acoustiblok UK

Yeah but mine’s  free

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Imagine what Russ Andrew's would charge for that ?  Great find :)

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27 minutes ago, bigrod said:

Yeah but mine’s  free

True and it looks excellent too....if only we could all get some! :) I am also looking at a new music room being built, and thought I'd share as I'm sure others would be interested.

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Imagine what Russ Andrews would charge for that?

I think we'd all rather not!

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10 hours ago, VanDerGraaf said:

Do tell me more about those Dom- sounds interesting.

Another material for consideration?

Soundproof Insulation | 3mm Sound Insulation Membrane | Acoustiblok UK

https://www.soundstop.co.uk/soundproofing/soundproofing-ceilings/resilient-bar-solution3.php They decouple ceilings and walls.  Very effective. Have also added an architect's drawing of my old property to show the full spec of the bars and insulation.

Resilient_bars_teddington.pdf

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@DomT Yes, the resilient bar solution is very good (I am an architect as well as other things!).

That drawing of yours only shows a yelofon sheet to prevent impact sound being transmitted from the floor above to the room below . The main sound insulation is provided by the solid concrete floor slab.

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10 minutes ago, Fourlegs said:

@DomT Yes, the resilient bar solution is very good (I am an architect as well as other things!).

That drawing of yours only shows a yelofon sheet to prevent impact sound being transmitted from the floor above to the room below . The main sound insulation is provided by the solid concrete floor slab.

This reminds me about the soundproofing for windows.... the old laminated glass with wide spacing and differing glass thicknesses, vs, triple glazing....

Any thoughts on which is generally best, and what is the best solution you've seen implemented from a measured noise reduction standpoint?

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@Metatron I have not had much experience of acoustic glazing.

This website seems to be pretty good for explaining the mechanisms and solutions. It also has options with insulation figures.

It is obviously advertising their products but it still has a lot of sensible advice.

Of course all insulation figures go out of the window if you open it!! and so one then gets into specialised ventilation systems to avoid having to open the window.

Edited by Fourlegs
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4 hours ago, Metatron said:

This reminds me about the soundproofing for windows.... the old laminated glass with wide spacing and differing glass thicknesses, vs, triple glazing....

Any thoughts on which is generally best, and what is the best solution you've seen implemented from a measured noise reduction standpoint?

My last UK home had triple glazing. But adding a single pane secondary glazing unit made a very big difference. Triple glazing was very good though and we just fitted the secondary glazing to one critical room. 

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23 hours ago, DomT said:

https://www.soundstop.co.uk/soundproofing/soundproofing-ceilings/resilient-bar-solution3.php They decouple ceilings and walls.  Very effective. Have also added an architect's drawing of my old property to show the full spec of the bars and insulation.

Resilient_bars_teddington.pdf 444.6 kB · 10 downloads

Many thanks Dom. 

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  • 4 months later...

First board on …

9867EEA1-99DF-4692-A2C4-E860FDA6F305.jpeg

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22 minutes ago, bigrod said:

First board on …

9867EEA1-99DF-4692-A2C4-E860FDA6F305.jpeg

Are you using the resiliant bars?

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1 hour ago, DomT said:

Are you using the resiliant bars?

Only on the roof , the walls will be 4” polyurethane under 2” rock wool over which will be 2 layers of acoustic fibre sandwiched between acoustic panel boards.. 

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