Part of an expansive total basement renovation. This area highlights the new staircase and exercise area. Sono flooring was used. It is made of a waterproof ceramic composite core. Sono products are made in compliance with the California Air Resources Board (CARB) Airborne Toxic Control Measures (ATCM) Phase II standards, and are both GreenGuard Gold and Blue Angel certified..SONO products have ultra-low VOC emissions and do not contain formaldehyde, plasticizers or phthalates.