SC Non-Structural Renovation Practice Questions - South Carolina Non-Structural Renovation Contractor Examination Exam

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The IBC 1/300 attic-ventilation ratio may be used only when the code’s exception conditions are met. Those conditions address which two ideas?

Using only gable vents and omitting soffit vents A Class I or II vapor retarder where required by climate, and a specified portion of the ventilation placed high in the attic (balanced high/low vents) Sealing the attic airtight with spray foam on the roof deck Providing ventilation equal to 1/50 of the floor area

Correct Answer:

A Class I or II vapor retarder where required by climate, and a specified portion of the ventilation placed high in the attic (balanced high/low vents)

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