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Water-resistant underlayment with sound absorbing qualities

Ultrakustik Floor 100 Hydro is a dual–purpose material. It provides waterproofing for floating floors and significantly reduces shock noise.

It effectively reduces the shock noise level by up to 24 dB

Ultrakustik Floor 100 Hydro is used as an elastic layer in a sound insulating floating floor construction.

Acoustic felt retains its elastic properties under load and increases the shock noise insulation level of the floor structure by 24 dB.

The stability of the Ultrakustik Floor 100 Hydro characteristics is confirmed by long-term use of the material in construction and regular measurements at existing facilities.

Professional Waterproofing Material

Ultrakustik Floor 100 Hydro is designed to provide effective shock noise insulation in rooms prone to leaks, such as bathroom, kitchen, water closet.

The top layer of the underlayment is made of a reinforced polymer-bitumen membrane that protects the floor surface from leaks. Adding polymers to the bitumen binder provides high temperature resistance, durability, and strength of the waterproofing layer.

Features of the material usage, ready-to-use soundproofing structures and examples of implemented projects can be found in the "Usage" tab.
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Maintenance info

Composition and description

Waterproofing layer: reinforced polymer-bitumen membrane.

Soundproofing material: acoustic felt made of 100% polyester fiber.

A similar scheme but with our underlay

Storage

Ultrakustik Floor 100 Hydro material should be stored in an upright position in one row in compliance with fire safety rules and away from any precipitation and groundwater.

Features of the material usage

Ultrakustik Floor 100 Hydro, unlike other waterproofing materials, does not require surfacing, but simply fits on the flooring surface as a single sheet. The bituminous surface of the material must face upwards, while the edges must overlap one another. The joints between the sheets of material should be sealed by softening the bitumen with a heat gun or a narrow flame gas burner.

Installation guides, video instructions, certificates, acoustic measurement protocols and other materials for download can be found in the "Support" tab.
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Physical Properties

Roll width:
1 m
Working width of the elastic underlay without taking into account overlap of the bitumen base:
0,93 м
Roll length:
10 m
Thickness:
5 mm
Roll weight:
34 kg

Physical and Technical Properties

Dynamic stiffness index at a load of 2 kPa
max. 80 MN/m3
Tensile strength:
not less than 270 N
Water resistance for 2 hours at a pressure not more than 0.2 MPa
absolute
Water absorption during 24 hours
not more than 2%
Heat resistance:
not less than 85ºС (185°F)

Acoustics Properties



Impact noise reduction index, ΔLn,w under a screed with a surface density of 100-120 kg/m2 (20 – 25 lb.ft2) 24 dB

Downloads

Features of the material usage, ready-to-use sound-proofing structures and examples of implemented projects can be found in the "Usage" tab.
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Assessment

Questions/reviews from site visitors

Please note! In order to avoid spamming the page, questions are pre-moderated before publication. Therefore, the submitted question does not appear on the page immediately.
Slobodan 27 January 2023
Is it possible to fix Ultrakustik Floor 100 Hydro to the ceiling to insulate shock noise from above?
Expert answer

Use of Ultrakustik Floor 100 Hydro on the ceiling will not reduce shock noise from the neighbors from above. It would be most effective to apply the material under the floor screed at the neighbors’ from above.

Edvard 27 January 2023
Is it possible to use Ultrakustik Floor 100 Hydro in the bedroom?
Expert answer

Ultrakustik Floor 100 Hydro material can be applied throughout the apartment (in all types of premises).

Borislav 27 January 2023
Is it acceptable to lay the Ultrakustik Floor 100 Hydro in two layers?
Expert answer

Installation of Ultrakustik Floor 100 Hydro in 2 layers is not recommended, as it does not result in a significant increase in soundproofing.