9.25.2.4.(2)

Intent 1:

To limit the probability of excessive settlement of, displacement of or incomplete coverage by loose-fill insulation, which could lead to inadequate thermal resistance, which could lead to excessively low temperatures of interior surfaces or within assemblies, or excessively high temperature of roof surfaces.

This is to limit the probability of:

• condensation,
• the accumulation of moisture, or
• the formation of ice dams, which could lead to water ingress.

This is to limit the probability of deterioration, which could lead to compromised structural integrity of attic or roof assemblies or of elements protected by attic or roof assemblies, which could lead to harm to persons.

Intent 2:

To exempt loose-fill insulation from the application of Sentence 9.25.2.4.(1), in areas where the risk of excessive settlement, incomplete coverage and moisture damage is low.