Material such as membranes that to a certain extent blocks or reduces vapor movement through a portion of a structure.
Ice Dams – The Beauty and the Beast
Beautiful Icicles and Ice Dam Have you ever admired the beautiful icicles hanging from your roof? Did you notice a thick layer of ice at the top of the icicles? This layer is called an ice dam and can lead to serious problems if left unattended. Ice dams form when water from [...]