The following research relates to of sound-absorbing materials in drywall structures such as gypsum board partitions, cladding or suspended ceiling structures. Its potential to increase sound insulation in the low frequency range is assessed as limited and proportional to the thickness of the structure - the thickness of glass or stone wool. The results of the study demonstrate the possibilities to improve the sound insulation properties in the medium to low frequency range by effectively using sound-absorbing materials without significantly increasing the thickness of the structure.