Hi all,
We have a clinic project that is seeking LEED HC certification and the credit IEQ c2 is similar to this pilot credit. Background noise, sound isolation, speech privacy are also needed in HC project. We try to pursue this credit but it's hard to meet all the requirements. Does anyone know how to meet the requirements of speech privacy? There are PI, AI, SII, STI but I can't find the construction materials with these coefficients. Then how do I prove the speech privacy of the spaces meet the requirements.

Thanks in advance, any help and suggestions will be appreciated.