Method and apparatus for preventing the formation of ice dams an

Details Method and apparatus for preventing the formation of ice dams an Method and apparatus for preventing the formation of ice dams an

1997-09-03

1999-04-06

Smith, Creighton

Static structures (e.g., buildings)

Controlled by condition responsive means

523021, 454341, 454365, 340580, 340583, E04H 900

Patent

active

058903224

ABSTRACT:
A method and apparatus for preventing and/or minimizing the formation of ice dams and icicles on a roof of a building having an unheated attic under said roof, which involves the steps of: (1) determining if there is an accumulation of snow on the roof, (2) determining ambient outdoor air temperature, (3) determining the temperature of air in the attic and (4) if there is an accumulation of snow on the roof and if the ambient outdoor air temperature is at or below freezing and if the attic air temperature is sufficient to cause melting of the snow on the roof, exhausting air from the attic.

REFERENCES:
patent: 3579930 (1971-05-01), Murphy
patent: 3801779 (1974-04-01), Ver Sluis
patent: 4122660 (1978-10-01), Canavan
patent: 4416415 (1983-11-01), Kolt
patent: 5487247 (1996-01-01), Pigg
patent: 5720661 (1998-02-01), Yoshizawa et al.

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