Duct and Envelope Tightness (DET)

This course is designed by Sheet Metal Workers’ Local 265 to train our members in third party verification testing which is recognized by the State of Illinois. Illinois has adopted the International Energy Conservation Code (IECC 2012) that requires building envelope and duct leakage testing. This course will familiarize our members with the IECC 2012 as it pertains to Illinois adoption of the code. After successful completion of a written and performance exam, our members will be certified to conduct these tests. You will be able to download our certification to the Illinois Department of Commerce and Economic Opportunity (DCEO) and the Midwest Energy Efficiency Alliance (MEEA) Illinois code diagnostics web site and be listed as an individual that has been trained to conduct these tests.

Course Agenda:

Installations and set up procedures for a blower door and duct leakage test.

Procedures for conducting a blower door test:

• Pre-test and Post-test baseline building pressure readings
• Single-point test
• Multi-point test
• Repeated single-point test

IECC 2012 (Section R404.1.1 Installation)

• R402.4.1.2 Testing

Procedures for conducting a duct leakage test:

• Total duct leakage test
• Leakage to the outside test

IECC 2012 (Section R403.2 Ducts)

• Post construction test
• Rough-in test with air handler
• Rough-in test without air handler

Calculations for blower door (ACH50, air changes per hour @50Pa.)

Calculations for duct leakage (Percent of duct leakage)

For more information on this program contact the education office at 630.668.0110