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Author Question: Foam is known as closed-cell because the air-trapping cells are sealed completely and tightly ... (Read 49 times)

lunatika

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on: Jul 24, 2018
Foam is known as closed-cell because the air-trapping cells are sealed completely and tightly packed.
 
  Indicate whether the statement is true or false

Question 2

The ________ is a group of materials that work together to keep the indoor environment separated from the outdoor environment.
 
  A) Pressure boundary B) House as a system
  C) Heat recovery system D) Building envelope


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moormoney

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Reply #1 on: Jul 24, 2018
Answer to Question 1

TRUE

Answer to Question 2

D


lunatika

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Reply 2 on: Jul 24, 2018
Thanks for the timely response, appreciate it

daiying98

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Reply 3 on: Yesterday
Excellent

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