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Rockwool in Somerset

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Rockwool in Somerset

Postby maskedwarrior » Tue Jul 14, 2020 1:24 pm

Hello,
I'm after a pack of 50mm RWA45 insulation to acoustically treat a wall and I'm having trouble sourcing some locally from a friendly indie supplier. Perhaps these don't exist anymore? I am happy to collect. I've found one company charging a £20 fee for me to go and collect. I was hoping to do better!

Suggestions welcome. Thanks.
Tony
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Re: Rockwool in Somerset

Postby maskedwarrior » Tue Jul 14, 2020 1:51 pm

Ah so I found some at Travis Perkins in Bristol for £26 inc VAT and I call that fine. This is the only chain I found who stocked it at a reasonable individual price and would let me collect without a charge.

Thanks, Tony.
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Re: Rockwool in Somerset

Postby James Perrett » Tue Jul 14, 2020 1:55 pm

Unfortunately this sort of product is slightly specialist so you need to go to a specialist supplier if you want any chance of finding it in stock. If you buy from a general builders merchant they usually have to order it in specially and will charge extra for small quantities.

The last time I needed a small quantity I found Studiospares to be the best place as they were one of the few places that actually had some in stock and their price for a single bale wasn't much more than the price of a single bale from the specialists (who all seemed to be out of stock at the time).
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Re: Rockwool in Somerset

Postby Ian Shaw » Tue Jul 14, 2020 2:00 pm

Not indie, but I got mine from Wickes. Just checked & it's on offer atm (£10 off). They have it near me in Bridgwater & Taunton

Hope that helps

Ian

PS Get a trade card if you can & get another 10% off
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Re: Rockwool in Somerset

Postby Ian Shaw » Tue Jul 14, 2020 2:01 pm

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Re: Rockwool in Somerset

Postby James Perrett » Tue Jul 14, 2020 3:14 pm

Ian Shaw wrote:Not indie, but I got mine from Wickes. Just checked & it's on offer atm (£10 off). They have it near me in Bridgwater & Taunton

There's no mention of density on the Wickes site for that product and I can't find density specs anywhere for it so it may well not be dense enough for acoustic treatment.
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Re: Rockwool in Somerset

Postby blinddrew » Tue Jul 14, 2020 3:34 pm

I ended up going to Jewson when I got mine, needed to order it in but I was able to get the right density and there were no additional charges for the special order or the collection.
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Re: Rockwool in Somerset

Postby Ian Shaw » Tue Jul 14, 2020 4:03 pm

James Perrett wrote:
Ian Shaw wrote:Not indie, but I got mine from Wickes. Just checked & it's on offer atm (£10 off). They have it near me in Bridgwater & Taunton

There's no mention of density on the Wickes site for that product and I can't find density specs anywhere for it so it may well not be dense enough for acoustic treatment.

True. Not much info on Rockwool's website either. I used mine behind panelling in my lounge to deaden the sound when I took up the carpets to go back to the old stone floor.The echo was terrible. I made a couple of acoustic panels for my music room with the left-over slabs. Fine for general deadening, but couldn't comment on the exact properties of the stuff.
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Re: Rockwool in Somerset

Postby Sam Spoons » Tue Jul 14, 2020 4:44 pm

Rockwool RW3 is often cited as the best compromise for acoustic panels. It is 60gcm density and just rigid enough to be self supporting in a frame.
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Re: Rockwool in Somerset

Postby Matt Houghton » Tue Jul 14, 2020 6:12 pm

James Perrett wrote:
Ian Shaw wrote:Not indie, but I got mine from Wickes. Just checked & it's on offer atm (£10 off). They have it near me in Bridgwater & Taunton

There's no mention of density on the Wickes site for that product and I can't find density specs anywhere for it so it may well not be dense enough for acoustic treatment.

Can't recall the details, but it was less dense then RWA45 when I last looked into it — around March/April this year. (I ended up ordering a half-palette of RW3 from a builders' merchant as it's cheaper and better, and I knew I could use it... but boy does it take up space before you've done what you want with it!)
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Re: Rockwool in Somerset

Postby Sam Spoons » Tue Jul 14, 2020 6:49 pm

Sam Spoons wrote:Rockwool RW3 is often cited as the best compromise for acoustic panels. It is 60gcm density and just rigid enough to be self supporting in a frame.

That should have read 60kg/m3 for RW3, RWA45 is 45kg/m3 according to their data sheet.
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Re: Rockwool in Somerset

Postby Martin Walker » Wed Jul 15, 2020 4:18 pm

maskedwarrior wrote:Ah so I found some at Travis Perkins in Bristol for £26 inc VAT and I call that fine. This is the only chain I found who stocked it at a reasonable individual price and would let me collect without a charge.

That's where I got mine from Tony, and they even delivered it free of charge!


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Re: Rockwool in Somerset

Postby maskedwarrior » Thu Jul 16, 2020 1:54 am

Thanks all for your suggestions. I picked some up from TP today. Martin, I had to double check they didn't offer free delivery where I am, as I had assumed not and automatically clicked collection. Fortunately, they do NOT offer free delivery, so I do not full like a muggins. That is good :)

I also didn't notice the density specs of the Wickes stuff. Perhaps it could be factory seconds, within BS spec but varying?

Sam Spoons wrote:Rockwool RW3 is often cited as the best compromise for acoustic panels. It is 60gcm density and just rigid enough to be self supporting in a frame.

Ah yeah. I made my initial acoustic screens out of RWA45 as I was on a budget and I ended up making 75mm screens by slicing some panels in half. It was messy and annoying. However, I will be clamping this insulation beneath some plasterboard, to dampen a thin wall and provide some sound proofing. I will double up to 100mm if required.

Thanks again.
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Re: Rockwool in Somerset

Postby maskedwarrior » Wed Sep 23, 2020 3:25 am

Just an update, for anyone making their own screens. I was mistaken, I originally used RW3 Rockwool panels to make my screens, not RWA45. The former are rigid and dense enough to be useful, the latter are very floppy, not as dense and I wouldn't recommend them to make screens out of. Because the RWA45 is quite squishy it should work quite well to muffle this wall in my house (which I haven't got round to doing yet!). I'm going to mount it behind some plasterboard. I'd recommend using 100mm RWA45 and squishing it a bit, ideally. However I'm going to use 50mm and see how I go, and double it later if necessary.

Just wanted to clear this up in case anyone googles this thread and is led in the wrong direction.
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