STC (Rw) 33 achieved with STC 38 glass
(1 3/8” [36 mm] double IGU, 10 mm tempered + 10 mm tempered)
STC (Rw) 43 achieved with STC 50 glass
(1 3/8” [36 mm] double IGU, 12 mm laminated + 12 mm laminated)
1 Excerpts of results of two panel unit size 14’ W x 10’ H (4267 mm x 3048 mm) with varying cross-sections by Architectural Testing Inc., Lake Forest, CA an AAMA accredited and certified independent testing laboratory in May 2018.
cero II has been tested at an accredited and certified independent laboratory. We test our product to meet the highest standards of ASTM E90, ISO 10140-1, 2, 4, 5. STC calculations meets standards of ASTM E413, and ISO 717-1.