Ice dams

Interior · Ceilings · printed page 356 (PDF page 357)

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Book index entries

on Party Walls Party Wall – Ice Dams Interior Walls

Text in the illustration

snow
SNOW MELT
water backup
ice dam
party wall
heat loss up through party wall

Generated explanation

The illustration shows a snow-covered sloping roof over adjoining dwellings separated by a party wall, whose location is indicated by dashed lines. An upward arrow identifies heat loss through the party wall, aligned with a strip of melted snow on the roof. Meltwater flows down this strip toward an ice dam at the eave. Water backs up behind the ice dam, and icicles hang from the roof edge.