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United Facilities Criteria CD 1
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> Figure 20. Elecrtic Heaters Can Create Tunnels Which Prevent Ponds From Forming on Roofs Behind Ice Dams
Figure 19. Removal of Snow And Ice Is Dangerous And Often Damages The Roof.
Figure 21. Elecrtic Heaters Zigzagged Along the Eaves
Commentary On Snow Loads - index
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CEMP-E
TI
809-52
3
August
1998
Figure
20.
Electric
heaters
can
create
tunnels
which
prevent
ponds
from
forming
on
roofs
behind
ice
dams.
23