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LEED® for New Construction*

IEQ Credit 3.1: Construction IAQ Management Plan – During Construction
IEQ Credit 3.2: Construction IAQ Management Plan: Before Occupancy

The intent of these LEED credits is to implement an Indoor Air Quality (IAQ) Management Plan during the construction and pre-occupancy phases of the building that reduces indoor air quality problems and minimizes health issues for construction workers and future building occupants.

Not only can TEMP-AIR provide an IAQ solution, but we can provide much of the required documentation for these credits in our estimate and record air quality information during the phases of construction, greatly simplifying your efforts to comply with the LEED requirements.

Since 1965, TEMP-AIR has been America’s leading provider of temporary, portable heating, cooling, dehumidifying, and air filtration services. Our 50+ years of experience permit us to size and lay out each unique project for maximum effectiveness.

A TEMP-AIR estimate will include:

  • Analysis of ventilation requirements to ensure compliance with OSHA regulations
  • Analysis of heating, cooling, or dehumidifying requirements
  • Analysis of moisture management and condensation precautions
  • Equipment selection, sizing and placement during construction phases
  • Fuel and power requirements
  • Documentation

LEED IEQ Credit 3.1: Construction IAQ Management Plan: During Construction

This credit requires the development and implementation of an IAQ plan for the construction phase of the building. It entails meeting or exceeding the Sheet Metal and Air Conditioning Contractors National Association (SMACNA) IAQ Guidelines for Occupied Buildings Under Construction, Chapter 3; protecting materials from moisture damage; and installing MERV-8 filters if using permanently installed air handlers.

How TEMP-AIR can help:

In its potential technologies and strategies, the credit states, “If possible, avoid using permanently installed air handlers for temporary heating/cooling during construction.” Additionally, the SMACNA IAQ Guidelines include recommendations for the use of temporary HVAC to protect the permanent HVAC equipment from dust and odors. More specifically, SMACNA recommends that the construction space be ventilated using make-up air to replace exhausted air.**

The TEMP-AIR THP-Series of direct-fired make-up air heaters use 100% fresh air that is heated and then evenly distributed indoors. This drier, tempered air has the ability to absorb moisture and ventilate the fumes from the construction process. It provides lower relative humidity levels and dew point temperatures inside the building to prevent condensation and minimize the potential for mold.

LEED IEQ Credit 3.2: Construction IAQ Management Plan: Before Occupancy

This credit requires the development and implementation of an IAQ plan for the pre-occupancy phase of the building. Specifically, it requires a flush out of contaminated air prior to or during early building occupancy until 14,000 cu. ft. of outdoor air per sq. ft. of floor area has been delivered to the space. Alternatively, the requirements for this LEED credit can be met if IAQ testing can prove that maximum concentrations of EPA listed air pollutants are not exceeded.

How TEMP-AIR can help:

In many cases, a building flush out will not be necessary if TEMP-AIR equipment is used throughout the construction process. The TEMP-AIR THP Series of direct-fired, make-up air heaters is specifically designed to remove moisture and disperse the harmful fumes and gases from the space. When TEMP-AIR systems are used properly, the IAQ test should be passed with ease.

If a flush out is required, the TEMP-AIR THP-Series of direct-fired make-up air heaters can then be used to purge the contaminated air from the space. The equipment is installed outside the space, bringing in 100% outside, fresh air to ventilate the toxic fumes from the building.

Not All Temporary HVAC Equipment is the Same

There are many types of HVAC equipment, each with their own benefits and ideal applications. In fact, TEMP-AIR carries each one of the types of heating equipment listed below in their rental fleet.

There are several factors to consider when determining which type of equipment will have the least adverse impact on the environment. Amongst these are equipment efficiency, carbon monoxide emissions, types of fuel used, costs, and the ability to improve indoor air quality during the construction process.

When combining the costs of rental, fuel, and labor along with its impact on the environment, TEMP-AIR THP-Series systems will be your most environmentally friendly, effective, and economical option.

*TEMP-AIR Can also help you meet credit requirements under these LEED Rating Systems: LEED for Existing Buildings, LEED for Commercial Interiors, LEED for Core & Shell, LEED for Schools, LEED for Retail, and LEED for Healthcare (Green Guide for Healthcare)

**Sheet Metal and Air Conditioning Contractors’ National Association, Inc. “IAQ Guidelines for Buildings Under Construction, Second Edition.” November 2007: 3.4

***Energy Information Administration. “Short-Term Energy Outlook”. February 2009, www.eia.doe.gov

“USGBC” and related logo is a trademark owned by the U.S. Green Building Council and is used by permission. The logo signifies only that TEMP-AIR, Inc. is a USGBC member; USGBC does not review, certify, or endorse the products or services offered by its members.

“LEED” and related logo is a trademark owned by the U.S. Green Building Council and is used by permission.



Project Name Location
Platinum SunTrust Stadium Atlanta, GA
Platinum Casey Condominiums Portland, OR
Platinum OHSU Center for Health and Healing Portland, OR
Platinum National Renewable Energy Laboratory Science & Technology Facility Portland, OR
Platinum Great River Energy Portland, OR
Silver McBride Elementary School Fort Benning, GA
TBD LOCA Portland, OR

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Environmental Comparison of Equipment

 Direct-Fired Make-up Air Heaters Direct-Fired Tube Style Heaters Indirect Fired Heaters Glycol Heaters Electric Heaters Steam/Hot Water Heaters
Combustion Efficiency  100 100 70-91 60-90 100 60-90
 CO Emissions in Airstream  less than 10 PPM less than 10 PPM None None None None
 Products of Combustion in Airstream  Yes Yes None None None None
 Air/Ventilation  Outside (Fresh) Air Outside (Fresh) Air Outside (Fresh) Air or Recirculating Recirculating Outside (Fresh) Air or Recirculating Outside (Fresh) Air or Recirculating
 Mechanical Ventilation  Yes Possible Possible Not Likely Possible Possible
 Temperature Distribution with Less Stratification Yes Possible Possible Not Likely Possible Possible
 Positive Pressure  Yes Possible Possible Not LIkely Possible Possible
 Rental Costs  $ $ $$ $$$$$ $$$$ $$$
 Fuel Types  Propane or Natural Gas Propane or Natural Gas Propane, Natural Gas or Fuel Oil Propane, Natural Gas or Fuel Oil Electric Steam
 Fuel Costs***(Per Million BTU)  Nat Gas $Propane $$ Nat Gas $Propane $$ Nat Gas $Propane $$Fuel Oil $$ Nat Gas $Propane $$Fuel Oil $$ Electric $$$ Steam $$$$ w/Wasting Condensate
 Safety Risks  Minimal Low Low Low Low Low
 Environmental Risks  Minimal Minimal Minimal Glycol Leak Minimal Minimal