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Building Science
Ice Dams: Causes and Fixes

Understanding how ice dams form and solutions for addressing the primary causes—namely, poor air-sealing and not enough insulation
Q&A Spotlight
Will This Roof in Snow Country be a Problem?

Energy consultants think 14 in. of cellulose is inadequate and suggest a 6-in. layer of exterior foam
Q&A Spotlight
Heading Off Ice Dams Before They Form

As a roof replacement approaches, a Boston area homeowner looks for precautions against winter ice dams
Q&A Spotlight
Singing the Ice Dam Blues

A nature center in Wisconsin needs a solution for an uninsulated cathedral ceiling that is plagued by ice dams

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Ice Dams: Causes and Fixes