The past several years, the construction industry has seen a significant shift toward sustainable building practices. Green building is no longer just a trend, it’s becoming the industry standard as companies and developers aim to reduce environmental impact, improve energy efficiency, and create healthier indoor environments. At the forefront of this movement is the LEED (Leadership in Energy and Environmental Design) certification, the globally recognized benchmark for sustainable construction. One of the critical, yet often overlooked, components in achieving LEED certification is the proper use of air barriers. Air barriers are a necessity of the building envelope and can play a vital role in improving a structure’s energy efficiency, indoor air quality, and overall sustainability.
Air barriers are materials or systems designed to control the flow of air between a building’s interior and exterior. They are strategically placed around the exterior of a building to prevent uncontrolled air leakage. By controlling air movement, air barriers help regulate indoor temperature, reduce energy consumption, and prevent moisture infiltration, which can lead to mold and structural damage over time. This makes them an essential element in enhancing a building’s overall performance and longevity.
Air barriers directly contribute to multiple LEED credits, helping projects earn valuable points toward certification. In the Energy & Atmosphere (EA) category, air barriers help optimize energy performance by reducing air leakage, which is a major source of energy loss in buildings. According to the U.S. Department of Energy, up to 40% of heating and cooling costs can be attributed to uncontrolled air leakage. By minimizing this loss, air barriers lower energy consumption and improve HVAC system efficiency, which LEED rewards with points for demonstrated energy performance improvements.
In the Indoor Environmental Quality (IEQ) category, air barriers contribute to enhanced indoor air quality by preventing the infiltration of outdoor pollutants, allergens, and moisture. By controlling humidity levels, air barriers help prevent mold growth and create a more comfortable indoor environment, key factors in achieving LEED points for enhanced indoor environmental quality. Additionally, in the Materials & Resources (MR) category, many air barrier products are made from low-VOC (volatile organic compounds) and recyclable materials, aligning with LEED’s focus on sustainable material sourcing. Specifying air barriers that are durable and environmentally friendly can help earn additional LEED points while contributing to the overall sustainability of the project.
The construction industry is under increasing pressure to deliver energy-efficient, environmentally responsible buildings, and air barriers are a low-cost, high-impact solution that enhances overall building performance. A properly installed air barrier can significantly reduce HVAC loads, leading to lower long-term energy costs. Fewer drafts and better humidity control create a more comfortable indoor environment, which improves occupant satisfaction and building functionality. Lower energy consumption also means reduced carbon emissions, supporting broader environmental goals and making buildings more appealing to environmentally conscious clients and tenants.
At Pecora, our air barriers are designed to bolster the energy efficiency and eco-consciousness of your building structure. By sealing a building’s envelope, our products not only reduce costs but also elevate overall operational efficiency by preventing air and water intrusion into your facility. Pecora’s air barrier systems play a vital role in meeting the stringent criteria of renowned sustainable rating systems, such as LEED.
Pecora offers a simpler path to LEED Green Building Rating System certification with our product specific LEED letters. Pecora’s submittal letters streamline this process for your construction project. You can access and download our product LEED documents in PDF format by clicking on the following link https://www.pecora.com/resources/leed-documents/.
As green building standards continue to evolve, air barriers are becoming an essential component of high-performance construction. By integrating effective air barrier systems into the building envelope, construction professionals can not only meet LEED certification requirements but also deliver buildings that are more efficient, durable, and comfortable. Investing in air barriers is not just about meeting codes—it’s about building for the future. Whether targeting LEED Gold or Platinum, understanding the role of air barriers can provide a competitive edge in today’s green building market.
References:
- Dörken Systems Inc. “LEED Certification and Air Infiltration.” DELTA® Academy, deltaacademy.dorken.com. Accessed 24 Mar. 2025.
- S. Environmental Protection Agency. “Air Sealing | Energy Star.” Energy Star, www.energystar.gov. Accessed 24 Mar. 2025.
- Schauffele, Roy. “Proper Way to Specify an Air Barrier.” ABAA Conference, May 2018, www.abaaconference.com. Accessed 24 Mar. 2025.
- Rocky Mountain Institute. “Airtightness in Buildings: Don’t Let It Slip Through the Cracks!” RMI, 6 Oct. 2022, rmi.org. Accessed 24 Mar. 2025.
- Barricade Building Products. “Achieving LEED Certification for Multifamily Construction.” Barricade BP, 12 Feb. 2021, barricadebp.com. Accessed 24 Mar. 2025.
