Labels:sky | television OCR: Ambient Temp Roof Temp 350 Warm roof Melt- -Water 340 Transition of liquid temperatures up-slope to frozen from cold ones cause Heat loss through ice dams. on very the roo raises cold day the temperature above freezing conditioned space Ice Dam below transmits heat Heated 680 Space through the roof Ambient Temp 150 assembly warming the surface of the roof The Process of Eave Icing temperature above freezing The snow bank begins to melt, and the water runs downhill reaching the area 0f rooftop which outside th building envelope and therefore much colder The melt water refr eezes causing the ice damming effects seen this diagram. Ice dams can have rather adverse dangerous effects on rooftops Ambien
