Professional acoustic laboratories have completed systematic sound transmission loss testing for double layer Ceramsite Panel partition structures providing accurate data reference for high demand acoustic design projects. The test results show that a double layer 100mm Ceramsite Panel partition with a 50mm air gap in the middle achieves a weighted sound reduction index of 58 decibels which can completely block very loud noise such as rock band rehearsal sound or industrial equipment operation noise. When the air gap between the two Ceramsite Panel layers is filled with 30mm thick high density mineral wool the sound reduction value can be further increased to more than 63 decibels reaching the acoustic performance level of professional heavy soundproof walls. This performance is enough to meet the strictest sound insulation requirements for recording studios cinema rooms and noise testing laboratory spaces. Many acoustic design engineers have started to use this double layer Ceramsite Panel structure as their standard high performance sound insulation partition solution because it provides far better cost performance than custom professional acoustic wall systems.
