Operable partitions - a life of experiences, observations, and testing plus comments on standards

Experiences testing operable partitions since 1986 will be reviewed including typical performance and various problems observed with both the partitions and surrounding structures. ASTM standards E557 on proper building preparation for an operable partition and E336 for the measurement of field performance will be discussed, including the 2005 revision of E336 as it affects evaluation of operable partitions.