Moisture Management in Residential Construction Series
Section 1 - Introduction - This video series demonstrates construction techniques and building science principles that minimize moisture-related performance issues in the building enclosure. The construction practices shown within this series provide general guidance by explaining the function of various building components, particularly how they direct bulk water away from the enclosure and how they manage heat flow, air flow, and vapor flow through the enclosure.
Technical resources are cited within the videos to provide detailed information based on a range of climate zones and building code requirements. Construction practices will vary by climate zone. These videos were produced in Northern Virginia and Maryland. They demonstrate common moisture management practices within Climate Zone 4. Although bulk water management details are generally applicable in all climates, certain construction practices shown here, particularly insulation selection/installation and water vapor management, might not be suitable for your area. Check your local building code requirements to ensure compliance in your area.
Section 2 - Exterior Wall System Components - One of the key functions of exterior walls is to keep bulk water out of the enclosure. Wind-driven rain is usually the largest moisture exposure for exterior walls. This makes material selection, assembly details, and installation practices critical. This section of the series considers water-resistive barriers, flashing around windows and exterior doors, and drainage techniques for absorptive cladding products.
Section 3 - Building Science Principles - Understanding and managing heat flow, air flow, and vapor flow is critical to the performance of the building enclosure. This section of the series identifies how understanding building science principles can improve energy efficiency and minimize moisture issues. Residential construction practices will vary by climate zone. These videos were produced in Northern Virginia and Maryland (Climate Zone 4).
Section 4 - Quality Management in Residential Construction - This section of the series considers the importance of a quality management system for builders trying to produce high-performance, energy efficient homes. Quality starts before the house is built, during the design and planning phase and throughout a company's business practices. Specifications will be the basis for construction and inspection in the field. When installation or performance issues are discovered in the field, an effective quality management system provides an established course of action for immediate corrective action to ensure the contractor knows the correct way to install a given component.
Please refer to the following two sites for more information provided by the National Association of Home Builders (NAHB) Research Center: