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Air barriers

As a component of the building envelope system that controls infiltration and exfiltration by air movement, an air barrier must have permeability no greater than 0.02 L/(s•m2) @ 75 Pa pressure difference. Which of the following materials can function as an air barrier
A. expanded polystyrene
B. fluid applied synthetic latex rubber membrane
C. asphalt impregnated felt
D. peel and stick sheet membrane
E. spunbonded polyolefin film membrane
F. perforated house-wrap

AnswerB, D, E are suitable (E - house wrap - however, must by properly supported on both sides as they cannot support negative wind loads and may tear at staples or rupture under load)

ARE 4.0 exam prep: BS

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