UNDER FLOOR COVERING
A pre-fabricated underlayment with guaranteed constant thickness and density. Ideal for projects that does not attend minimum levels required by NBR 15575-3 regarding impact noise and that have no possibility to use a regular screed layer in their construction method. The underlayment is glued with a specific cement glue developed for this product usage.
Guaranteed constant thickness and density
Rationalized and easily executed system
Meets the 15575-3 standard without great structural changes
May be used in Retrofit work
The compression fluency test analyses material behavior in the long term when compressed by a specific weight. There was a loss of 7% in thickness under a 10 kPa load. This result ensures that the flooring and applied cover do not suffer damages during the useful life of the work due to system movements. The material was also tested in order to verify resistance to mediums with high alkaline content such as concrete. One may observe that the product is alkali-resistant and, therefore, inert to alkaline attack.
The material was also tested to identify their resistance to high alkalinity media content such as concrete. It can be seen that the product is alkali-resistant and hence an inert material to alkaline attack.
|Inner flooring||≥ 13||≥ 17||≥ 20|
|NBR 15575 – VUP (Project useful life).|
In a test performed with the acoustic underlayment Sound Soft Zero Slab 2mm, the impact sound pressure level was measured at 76 dB, thus framing the work that previously did not meet the minimum levels required by NBR 15575-3.
|Frequency (HZ)||Without flooring L’nT(third of an octave) dB||L’nT (third of an octave) dB|
|L’nT,w Classification according to ISO 717-2||84 dB||68 dB|
|*Acoustic Harmony – Report 13‐309A‐EIM.|