ARCHIVED - 9.28.6.3.(1)

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9.28.6.3.(1)


Objective	OH1 Indoor Conditions
Attribution	[F20,F80-OH1.1,OH1.2,OH1.3]
Application	Application 1: Minimum thickness of the first coat of stucco, on buildings to which Part 9 applies [see Sentence 1.3.3.3.(1) of Division A for application of Part 9].
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Intent	Intent 1: To limit the probability of: drying before hydration is complete (or inadequate curing), the inadequate embedment of lath, which could lead to the corrosion of lath, or the excessive shrinkage of stucco under gravity or lateral loads, which could lead to cracking. This is to limit the probability of an inadequate bond between lath and stucco, and the inadequate strength of stucco, which could lead to: excessive moisture transfer by capillary action, or inadequate strength to resist gravity, lateral, impact or abrasion loads, or freeze-thaw stresses. This is to limit the probability of: precipitation or meltwater ingress, or compromised thermal performance of components intended to provide resistance to heat transfer. This is to limit the probability of: an inadequate control of temperatures of interior spaces or relative humidity, the generation of pollutants from biological growth or from materials that become unstable on wetting, or deterioration, which could lead to compromised integrity of exterior walls or elements protected by exterior walls. This is to limit the probability of: negative effects on the air quality of indoor spaces, the inadequate thermal comfort of persons, and contact with moisture. This is to limit the probability of harm to persons.
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