by John Krigger | Jan 14, 2022
(9.5 CEUs) To be an effective insulator, you must know about the materials and equipment used in your trade. This lesson explores the most important characteristics of insulation materials and the most common ways to install insulation. Insulation Introduction—1.5...
by John Krigger | Jul 16, 2021
(7.0 CEUs) Air leakage is among the very most wasteful energy problems found in buildings. This short course explores the nature of an air barrier, how to find air leaks, and how to seal ducts and the holes they often create through the building envelope.
