“I am interrupting my series on the ANSI/AGSC/AGRSS™ Standard 003-2015 to discuss the use and the slow obsolescence of (some types) of glass dams. A glass dam is a device that holds back a material from going where it is not supposed to go. Dams in our industry are used in three different ways: as a positioning device, an aesthetic feature to hide unappealing material or as a sound barrier between the engine noise and the quiet interior.”