Banner for LabNotes
From Lab Notes
Contact Information
Forest Products Laboratory
One Gifford Pinchot Drive
Madison, WI 53726-2398
Phone: (608) 231-9200
Fax: (608) 231-9592
Email

 

You are here: FPL Home  / Videos & Photo Galleries  / Instructional  / Moisture Management Residential Construction Series  / Video 1: Series Overview

Video 1: Series Overview

The building enclosure includes the foundation, exterior walls, and the roof. It provides environmental separation between the inside of the house and the outdoors. The building enclosure must keep out rain water, isolate the building from ground water, and manage heat flow, air flow, and vapor flow.



The building enclosure includes the foundation, exterior walls, and the roof. It provides environmental separation between the inside of the house and the outdoors. The building enclosure must keep out rain water, isolate the building from ground water, and manage heat flow, air flow, and vapor flow.

This video series focuses on moisture management. The most important function of the building enclosure is to direct bulk water or 'rain' away from the house. This is done by the roof, gutters, and downspouts along the exterior wall, site grading, and foundation drainage. This video series emphasizes construction details for managing bulk water.

To keep water out of the building enclosure, flashing is critical. Some portions of flashings are not visible in completed construction, such as flexible flashing material around windows, doors, and wall penetrations. However, the outer terminations of roof flashing are always visible from the exterior at completion of construction.

The building enclosure also manages heat flow, air flow, and vapor flow. This function is important not only to the energy performance of the house but also its durability.

Construction practices will vary by climate zone. Our instruction video demonstrates common moisture management practices within Climate Zone 4 - around the Maryland and Northern Virginia area of the country. Although bulk water management details are generally applicable in all climates, certain construction practices shown here, particularly insulation and water vapor management might not be suitable for your area.

The construction practices shown in our video series are intended to provide general guidance. You must follow specific building code requirements within your area.