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Category: Envelope

Lesson: Air Barrier Basics
Air barriers are an essential part of the building envelope, but leaky or incomplete air barriers are ineffective and may even create safety hazards. This lesson covers air-barrier principles and typical air-barrier installation problems. You’ll learn how to locate common air-leakage sites and techniques to correct common air-barrier problems. This is a 1.3 hour session.
BPI (0.65 CEUs)

Lesson: Stopping Heat Gain
In climates with cooling needs, the most effective cooling strategy is to stop heat before it enters the building. This lesson describes how heat enters buildings and the best strategies to stop unnecessary heat gain. You’ll learn about the different modes of heat gain in buildings: solar heat, air leakage, internal heat gains, and heat transmission. This lesson also discusses design details that limit heat gain and how to improve buildings to limit their heat gain. This is a 1.3 hour session.
BPI (0.65 CEUs)

Lesson: Air Pressure and Flow
Air pressure and airflow affects indoor air quality, building durability, and energy efficiency. This lesson covers air pressure principles and how air pressure applies to building performance. In this lesson you will learn the following: Factors that create pressures and drive airflow between spaces; • the sources of air-pressure imbalance; and how to measure air-pressure with diagnostic tools. This is a 1.3 hour session.
BPI (0.65 CEUs)

Lesson: Finding Major Air Leaks
In many buildings, air leakage is the single greatest source of heat loss through the building envelope. Air leakage areas can be difficult to find, but they’re usually inexpensive to fix. This lesson covers common areas of air leakage found in residential buildings. In this lesson you will learn the following: where to look for major leakage areas; how to correctly seal leakage areas; and techniques to measure the post-improvement effectiveness of air-sealing work. This is a 1.3 hour session.
BPI (0.65 CEUs)

Lesson: Unvented Roof Insulation
Unventilated roof systems aren’t as common as conventionally-vented roofs, but they have some design advantages over the conventional roofs. This lesson covers the following topics: how to build unventilated roofs; the potential for energy and durability problems in unventilated roofs. • Important design details that protect unventilated roofs from heat and moisture damage. This is a 1.3 hour session.
BPI (0.65 CEUs)

Lesson: Insulation Performance Factors
This lesson covers the most important installation issues you’ll encounter when inspecting insulation. Insulators should install insulation in ways that optimize its effectiveness, but insulators often install insulation incorrectly. This lesson covers how to evaluate the performance of installed insulation. In this lesson you’ll learn the following: why insulation’s energy-performance is often less than its rated R-value, how other building factors, including air leakage, affect insulation’s effectiveness and how to select insulation that’s best suited to your project’s purpose, location, and budget.This is a 1.6 hour session.
BPI (0.80 CEUs)

Lesson: Insulation Introduction
Insulation resists heat gain and heat loss in buildings. This lesson covers the types of insulation you’ll encounter in buildings. In this lesson you’ll learn the following: how insulation works, characteristics of different insulation types and important insulation-performance factors, including safety. This is a 1.4 hour session.
BPI (0.70CEUs)

Lesson: High Performance Roofs
This lesson covers the thermal resistance, reflectivity, and ventilation of roofs. Roofs provide protection from heat, wind, sun and rain. The roof also accommodates the electrical service, plumbing vents, and chimneys, among other building utilities. This lesson covers high-performance roof designs that improve ventilation, shading, and thermal resistance. You’ll learn about specific roof features that vent heat and moisture out of the building. This is a 1.4 hour session.
BPI (0.70 CEUs)

Lesson: Window and Door Installation
Good window and door installers pay attention to details that prevent air and water infiltration. This lesson covers high-performance window and door installation techniques. You’ll learn the following window-and-door installation essentials. Window frame types for different wall details. Three different window-installation procedures. Window-installation flashing details. Methods to minimize thermal bridging around windows and doors. This is a 2.0 hour session.
BPI (1.00 CEUs)

Lesson: Door Selection
Doors have a small surface area but are an important part of the building envelope. This lesson covers how to select energy-efficient doors that meet your project’s needs. In this lesson you’ll learn the following: how a door’s design affects its thermal resistance and air leakage, what materials and features to look for when selecting an energy-efficient door and energy-efficient door components and installation details.This is a 1.2 hour session.
BPI (0.60 CEUs)

Lesson: Fibrous Insulation
Fibrous insulation is an inexpensive and commonly used form of insulation. Fibrous insulation comes in different forms, so wise selection and correct installation optimizes the benefits. This lesson covers the different types of fibrous insulation and their most important characteristics. You’ll learn the following: the relationship between insulation type, thickness, and R-value, how to select fibrous insulation that’s appropriate for your project and how inappropriately selected or installed fibrous insulation can affect building energy use and moisture-management. This is a 1.6 hour session.
BPI (0.80 CEUs)

Lesson: Foam Board Insulation
Foam board insulation comes in different forms that have different R-values and other characteristics. This lesson covers how to identify foam board insulation in the field, how to select and install the common foam, board insulation types and how to recognize when fire, moisture or temperature conditions may be inappropriate for foam board installation. This is a 1.3 hour session.
BPI (0.65 CEUs)

Lesson: Super-insulated Walls
Superinsulated walls combine advanced framing, airtight sheathing, and insulation to achieve high R-values and superior airtightness. This lesson covers the structural features, thermal features, and weather-resistive features that typify superinsulated walls. This lesson discusses the following topics: the benefits of superinsulated wall systems, features that distinguish superinsulated walls from conventional walls and methods to build superinsulated walls economically.This is a 1.4 hour session.
BPI (0.70 CEUs)

Lesson: Window Performance Factors
Windows must meet certain performance factors to deliver acceptable comfort and energy efficiency. Learn to select the right windows based on the performance factors described in this lesson. This lesson covers the following window performance issues: efficient window selection for retrofit and new construction projects, NFRC window efficiency ratings, how to identify important window characteristics and how to select windows based on performance factors. This is a 1.4 hour session.
BPI (0.70 CEUs)

Lesson: Window Treatments
Building owners select window treatments to improve building efficiency and occupant comfort. Window treatments can insulate windows in winter and block solar heat in summer. This lesson presents the following information about window treatments: how window treatments increase the R-value of windows, how window treatments block solar heat through windows, how to compare the performance of window treatments and how to evaluate the practical challenges of installing window treatments. This is a 1.2 hour session.
BPI (0.60 CEUs)

Lesson: Window Introduction
This lesson covers window’s functions in buildings along with window energy efficiency. You’ll learn the following window basics: Building-science principles associated with windows, the main window types, introduction to high-performance windows and how to select windows for your projects. This is a 1.4 hour session.
BPI (0.70 CEUs)

Lesson: Wall Insulation Materials
In most buildings, walls make up the largest surface area of the building envelope. Because wall area is so large, insulators help optimize building energy-efficiency by installing wall insulation correctly. This lesson covers the following topics: common wall insulation materials, how to select the right insulation material, how poor installation affects energy performance, how to install wall insulation correctly and how to recognize building flaws that affect R-value. This is a 1.6 hour session.
BPI (0.80 CEUs)

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