ᐅ Is Additional Impact Sound Insulation Worthwhile?

Created on: 19 Jan 2015 08:57
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Neos2c
Hello everyone,

I will be installing a new floor in all rooms in the next few days. I have chosen the Haro Disano design floor for this. My reasons were the design (plank size and appearance) as well as the maintenance effort and durability. The floor is also PVC-free and free of plasticizers, which is quite important. It features an HDF (high-density fiberboard) core with a relatively thin cork underlayment.

Now my question is whether there is any reason not to install an additional impact sound insulation layer. I was thinking of the Icutec Schallschutzbahn Exquisit (equivalent to Alujet Sonic 3000). It is only 1.5mm (0.06 inches) thick but very dense and heavy (3kg/sqm (0.61 lb/sqft)). I am very convinced by it.

My question is whether there could be problems since the floor already has a highly compressed cork layer. Will the two underlays interfere with each other, or could there be movement issues? As mentioned, the Icutec/Alujet is very dense.

I would be very grateful for any tips and advice!
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Neos2c
21 Jan 2015 23:13
Hello everyone,

I have already read the installation instructions. The cork insulation seems a bit "thin" to me. That’s why I was thinking about this heavy-duty impact sound insulation. If the standard one is sufficient and provides a pleasant "sound," then that’s fine with me. I just don’t want laminate flooring to make a loud "click-click" noise.

I also contacted Haro about this and received a response saying that you should not use a second underlay as stated in the instructions. It could cause walking movements that might damage the click lock system.

That sounds reasonable to me, but you can’t compare all underlays. This one is extremely dense and probably doesn’t compress much when walking (if at all). It’s definitely not a 3mm (about 1/8 inch) foam underlay.
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Illo77
27 Jan 2015 16:18
Cork remains dimensionally stable and does not shrink! For example, a 3mm (1/8 inch) foam underlay will not last long, as it tends to compress to about half its thickness.
The entire plank structure cannot be compared to a noisy, generic laminate floor; the plank system is specifically designed to work with cork to provide excellent sound insulation.
Of course, if you prefer, you can add an additional underlay, but the difference will not be noticeably significant. If there is underfloor heating, this option is usually not recommended anyway (just as a side note).
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Neos2c
28 Jan 2015 07:18
Okay, thanks. I will install it without any additional base. I believe that should be sufficient.
WildThing28 Jan 2015 15:11
Hello,
I have a question. What exactly is this "Disano" design floor made of? On the manufacturer’s website, it only says, "DISANO by HARO is the eco-friendly and sustainable alternative to vinyl flooring: 100% PVC- and plasticizer-free."

But it does not explain what it actually is. Plastic? Vinyl? Linoleum? Wood? Cork?
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Illo77
29 Jan 2015 17:52
Vinyl means PVC and therefore it does not have the Blue Angel label because vinyl chloride is emitted... The top layer is not PVC but PE (polyethylene)... underneath that there will be a wood-based material and then the cork underlayment.
WildThing schrieb:
Hello,
a question from me. What exactly is this "Disano" design floor made of? On the manufacturer’s website it only says "DISANO by HARO is the ecological and sustainable alternative to vinyl floors: 100% free of PVC and plasticizers."

But unfortunately it does not say what it actually is? Plastic? Vinyl? Linoleum? Wood? Cork?
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hanslukas
23 Mar 2015 17:24
Hello,
Since January, I have installed click vinyl flooring from b!Design in several rooms, along with underlay mats, and have been very satisfied so far. However, the floor surface was slightly uneven (old building), so the mat served its purpose by compensating for minor height differences.
Best regards, Hans-Lukas