The term ICE DAM SITE is composed of four words. The first word, 'EAVE, ' is a four-letter word meaning the lower edge of a roof that projects beyond the side of a building. An ice dam site is an area where ice dams form, which are large chunks of ice that accumulate along the eaves of a roof and can cause damage to the structure. Ice dams form when snow melts on the roof and then refreezes at the EAVE, blocking the flow of water off the roof.