S Continuing Education

Section: January 2006

ALL courses ore published in their entirety on ArchitccturoLRccord. com

Photo courtesy of Centria

Barbara A. Nadel FAIA, Consulting Editor Continuing Education Section

202-206 Thermal and Moisture Control in Exterior Metal Walls By Peter J. Arsenault, AIA, NCARB, LEED-AP

Provided by Centria

LEARNING OBJECTIVES:

• Describe thermal and moisture control performance for exterior metal walls

• Define the components of an exterior wall system assembly

• Analyze how different climates affect design of exterior wall systems

• Review the advantages of using rainscreens in building design

• Evaluate design criteria for superior performance exterior wall systems

207-211 Air Barriers: Increasing Building Performance, Decreasing Energy Costs By Charlotte Forbe

Provided by Dupont Tyvek

LEARNING OBJECTIVES:

• Explain recent trends in air barriers for buildings

• Understand the physics of air and moisture movement through the building enclosure

• Discuss air barrier functions, benefits and performance requirements

• Select the appropriate air barrier for building projects

213-217 Concrete Waterproofing with Crystalline Technology By Stanley Stark, FAIA

Provided by Xypex

LEARNING OBJECTIVES:

• Understand how crystalline technology works with concrete to provide high performance waterproofing qualities

• Explain the difference between porosity, permeability and the mechanics by which water is absorbed through concrete structures

• Discuss how crystalline waterproofing technology improves the durability of concrete structures and reduces maintenance

• Identify appropriate crystalline technology product applications for various types of concrete construction

• Analyze how crystalline technology admixtures can impact building life cycle and project construction costs

218-222 The Pros and Cons of Restoring and Replacing Wood Windows By Karin Tetlow

Provided by Artistic Doors & Windows, Inc. LEARNING OBJECTIVES:

• Analyze the choices between restoring and replacing old wood windows

• Describe the components and functions of old and replacement wood windows

• Examine design issues, options, alternatives, and recommendations for renovation of old wood windows

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Thermal and Moisture Control in Exterior Metal Walls

Achieving durable, economical, and sustainable metal wall systems

Provided by Centria

By Peter J. Arsenault, AIA, NCARB, LEED-AP

later in liquid and vapor states, and temperature changes have long been recognized fas the most destructive weathering elements affecting the entire building envelope, especially exterior walls. Accordingly, moisture management and thermal efficiency are critical keys to a successful exterior wall system. This success is best achieved when buildings are designed to respond to environmental and climatic conditions. However, since the predominant design of exterior walls currently employs multiple material components that are used in different climates, care must be taken to understand the interaction and proper selection of those different components.

The combination of these energy efficiency changes and this comparatively higher moisture level has caused a new concern regarding moisture retention in exterior wall systems that can create design challenges for architects.

1. Moisture Problems and Causes

The rapid rise of energy costs in the early 1970s Led to a new standard of design for building envelopes that was more energy efficient and airtight than before. This is reflected in the growing number of energy code changes that require higher R-values and lower air infiltration rates for exterior walls, and other parts of the building envelope. Meanwhile, occupied spaces of buildings achieve relative humidity (RH) levels that are frequently around 40 percent. The combination of these energy efficiency changes and this comparatively higher moisture level has caused a new concern regarding moisture retention in exterior wall systems that can create design challenges for architects. The problems caused by the presence of moisture in a wall system cavity include:

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