AL Insulation Practice Questions - Alabama Insulation Contractor Examination Exam

Off-ratio spray foam (incorrect A:B proportioning) most commonly results in:

Perfectly predictable R-value with no defects Poor foam quality such as shrinkage, brittleness, stickiness, or odor problems Automatic conversion to mineral wool Higher structural steel strength

Correct Answer:

Poor foam quality such as shrinkage, brittleness, stickiness, or odor problems

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