Air: 13-15 (Optimisation)

Question 1

What is Feature 13?

Answer 1

Air Flush

Question 2

What project types (NEB, NEI, C&S) does Feature 13 apply to?

*Air Flush

Answer 2

All

• NEB
• NEI
• C&S

Question 3

What is the objective of air flushing?

Answer 3

Removal or reduction of airborne contaminants or pollutants by running HVAC for extended periods of time after construction and before occupancy.

Question 4

What are the specifications for Interior Temperature and Humidity for Feature 13?

*Air Flush

Answer 4

• Interior Temperature = Min. 15*
• Humidity = 60%

Question 5

What are the strategies for Feature 13?

*Air Flush

Answer 5

• Entire Air Flush
• 2-Part Air Flush (Before, After)

Question 6

What are the specifications for an Entire Air Flush for Feature 13?

*Air Flush

Answer 6

14,000 ft3 / ft2;

4,266 m3 / m2

Question 7

What are the specifications for a 2-Part Air Flush before Occupancy for Feature 13?

*Air Flush

Answer 7

3,500 ft3/f2;
1,066 m3/m2

Question 8

What are the specifications for a 2-Part Air Flush after Occupancy for Feature 13?

*Air Flush

Answer 8

10,500 ft3 / ft2;

3,200 m3/m2

+ Ventilation System provides (0.1 m3 / min) / m2

Question 9

What is Feature 14?

Answer 9

Air Infiltration Management

Question 10

What project types (NEB, NEI, C&S) does Feature 14 apply to?

*Air Infiltration Management

Answer 10

All

• NEB
• NEI
• C&S

Question 11

Condensation

Why is Feature 14 essential?

*Air Infiltration Management

Answer 11

Air Infiltration and Exfiltration can result in condensation that leads to material damage or the development of mold.

Question 12

“Only performed after…”; Commissioning; Plan

What are the 2 strategies for Part 1 of Feature 14?

• *Air Leakage Testing*
• *Air Infiltration Management*

Answer 12

• Building Envelope Commissioning
• Plan for Action and Remediation

Question 13

What are the guidelines of reference for Building Envelope Commissioning of Feature 14?

*Air Infiltration Management

Answer 13

• ASHRAE Guideline 0-2005
• NIBS Guideline 3-2012

Question 14

What is Feature 15?

Answer 14

Increased Ventilation

Question 15

What project types (NEB, NEI, C&S) does Feature 15 apply to?

*Increased Ventilation

Answer 15

All

• NEB
• NEI
• C&S

Question 16

Ventilation rates; CIBSE

What are the strategies for the sole part of Feature 15?

• *Increased Outdoor Air Supply*
• *Increased Ventilation*

Answer 16

• Ventilation supply rates exceed ventilation rates of Part 1A of Feature 3 (Ventilation Effectiveness) by 30%
• Follow CIBSE AM 10, Section 4 to predict room-by-room air flows providing effective natural ventilation

Question 17

What are Features 13, 14 and 15?

Answer 17

• Feature 13 = Air Flush
• Feature 14 = Air Infiltration Management
• Feature 15 = Increased Ventilation