AL Insulation Practice Questions - Alabama Insulation Contractor Examination Exam

Combustion appliance backdrafting risk can increase after extensive air sealing and insulation if:

Makeup air and proper venting of fuel-fired appliances are not verified The attic R-value is exactly R-30 Only mineral wool is used in interior partitions The house has LED lighting

Correct Answer:

Makeup air and proper venting of fuel-fired appliances are not verified

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