Walls

Walls

Exterior walls are the major components of the building envelope. By being a barrier between the interior and the exterior environments, walls need to have features that minimize the energy losses while maintaining durability. Each year, about 1.5 quads of energy is lost through walls in commercial buildings in America. Fortunately, there exist wall assemblies that are more energy efficient than traditional solutions. 

Building Envelope Team: View Main Page
Building Envelope Tech Team Meeting - Addressing Air Leakage: View Webinar

Featured Solutions

Oak Ridge National Laboratory verified the performance of LIQUIDARMOR CM Flashing and Sealant – an example of this new advanced material – with field tests and energy simulations of the Homeland Security Training Center at the College of DuPage in Glen Ellyn, IL.
Sprayable sealants are an innovative alternative to conventional tape that are an effective way of providing moisture and air sealing protection in commercial buildings.
The primer-less self-adhered membrane developed by 3M, serves as the air, liquid water, and water vapor barrier and adheres to most construction materials without a primer.
These tools can be used to calculate heat and moisture transfer that occurs in building components such as windows, walls, foundations, roofs, and doors.
This toolkit features webinars presented by the Better Buildings Alliance and Oak Ridge National Laboratory that focus on advancing the latest innovations for walls in commercial buildings.

Other Resources

Case Studies

A review of problems created by infiltration and exfiltration in buildings, and the design considerations of an air barrier system to control the problems.
Fresh air is vitally important in commercial buildings as well as in our homes. Concern is often expressed that recently introduced energy code provisions are promoting the construction of buildings that are too tight, leading to potential problems with indoor air quality and building materials degradation.

Fact Sheet

This fact sheet will help you to understand how insulation works, what different types of insulation are available, and how much insulation makes sense for your climate.

Additional Information

Whole Building Design Guide
This Resource Page covers basic concepts for specifying window and glazing systems, particularly energy-efficient windows.

Air Barrier Association of North America (ABAA)
ABAA is a national, not-for-profit trade organization dedicated to education and outreach, technical standards and quality assurance for the air barrier industry.

Metal Building Manufacturers Association (MBMA)
MBMA provides leadership, research, and education that increase the prominence and usage of metal building systems as the premier solution for performance, aesthetics, and sustainability in building construction.

Structural Insulated Panel Association (SIPA)
SIPA is a non-profit trade association representing manufacturers, suppliers, dealer/distributors, design professionals, and builders committed to providing quality structural insulated panels for all segments of the construction industry.

New Buildings Institute
NBI assesses technologies, promotes design approaches, and helps guide policies and programs that will significantly improve the energy efficiency of commercial buildings.

Green Proving Ground - GSA : Building Envelope
The Green Proving Ground program has commissioned Department of Energy National Laboratories to perform real-world measurement and verification of the following technologies in pilot installations in federally-owned buildings. 

American Society of Heating Refrigeration and Air-Conditioning Engineers (ASHRAE)
ASHRAE and its members focus on building systems, energy efficiency, indoor air quality, refrigeration and sustainability within the industry. 

Priorities

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