Quality

Sound Insulation

Sound absorption with the best test results: HTR FERRO Acoustic external door blanks are rated according to the Rw sound insulation value.

In addition to this is the RwR value (calculated value). This value is calculated as RwP minus a certain allowance (5 dB for doors). If, for example, a sound insulation of 27 dB RwR is required at a construction site, then a test value of RwP 32 is required. Ask us for our recommendations on “ready-to-use elements”.

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