Why must the backup in a rain-screen wall be airtight?

What will be an ideal response?


Because if the backup is not airtight, air will move between the air space (behind the cladding) and the backup, defying pressure equalization-the fundamental requirement of a rain-screen wall.

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IDENTIFY TEST PROCESS SYMBOLS AND DIAGRAMS

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________: personal income after the payment of tax obligations.

Fill in the blank(s) with the appropriate word(s).

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At an ambient temperature of 70*F normal pressure range on the high side of an air conditioning system is:

a. 15 - 30 psi b. 30 - 50 psi c. 100 - 150 psi d. 150 - 200 psi

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EIFS means _____

A) exterior/interior framing stud B) exterior insulation and finish system C) extended/integrated fascia and soffit D) exterior insulation framing system

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