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    Exam 16: Insulation and Ventilation
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    ____ Foams Have the Best R-Value Per Inch
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____ Foams Have the Best R-Value Per Inch

Question 21

Question 21

Multiple Choice

____ foams have the best R-value per inch.


A) Polystyrene
B) Polyurethane
C) Polyvinyl chloride
D) Polycarbonate

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