2021 Owens Corning Sustainability Report | Expanding Our Product Handprint | Sustainable Growth | 120 Sustainable Infrastructure ■ Products from Our Coated Wovens Business These include geosynthetic membranes to provide superior solutions for water management, agriculture, and the protection of high value raw materials. Our roofing underlayment contains a minimum of 20% recycled content. ■ Liner for Cured-in-Place Pipe (CIPP) Repairing sewer lines has traditionally involved digging up roadways, leading to traffic jams, noise, dust, and other disturbances. The CIPP installation process inserts a flexible thermoset resin liner into the damaged pipe, where is then expanded using air pressure and cured using UV light. CIPP delivers numerous advantages in terms of sustainability. By reducing the number of vehicles required to complete a repair and avoiding months of stopped traffic on the roadways, CIPP reduces the amount of CO 2 emitted over the course of repairs. This optimization of the process also saves time and labor while also reducing the risk of damage and accidents. We supply the thermoset resin manufactures with specially designed continuous filament glass that enables the installation and performance of the liner systems. The market for CIPP continues to grow around the world, especially in the U.S., Asia Pacific, and Europe. Looking ahead, we expect this market to continue to expand as investments in infrastructure continue to grow. ■ Corrosion-Resistant Rebar The American Society of Structural Engineers estimates that one in nine bridges in the U.S. is structurally deficient. In many cases, bridge failure is caused by corrosion of the steel rebar used in the supports and surface, and many states are looking at significant infrastructure projects to repair or replace these bridges. These projects are often disruptive and costly. In this context, longer-lasting bridges are better for the environment — and for the people who use and maintain them. Owens Corning’s fiberglass rebar offers a sustainable solution. The advantages of Owens Corning’s fiberglass rebar over traditional steel rebar are numerous — it lasts longer, it’s up to four times lighter, and it resists corrosion. We’ve worked with the U.S. Department of Transportation and several state agencies on specific bridge projects to demonstrate the benefits. Composite rebar is also beneficial in situations where concrete is manufactured using salt water, as it resists corrosion. By using salt water, manufacturers are able to preserve the amount of quality fresh water available for human consumption. ■ FOAMULAR ® EdgeLock™ Insulation This product is designed to insulate roads in areas where permafrost is vulnerable to melting, which is a practical factor in infrastructure in these regions. The unique design of EdgeLock™ insulation allows installers to use one layer of insulation without sacrificing the thermal performance typically achieved through two layers of insulation. This results in faster installation, reducing labor hours as well as carbon emissions from equipment, helping protect a sensitive ecosystem. ■ Composite Utility Poles and Cross-Arms We are working with several pole customers globally to develop utility transmission and communication poles. These glass fiber reinforced plastic (GFRP) poles offer reliability and resilience in high-load situations such as ice storms and high winds. They last longer than wooden poles, and they resist fire, wind, and other potential damage. And unlike chemically treated wood poles, which can leach chemicals into the soil, GFRP composite materials are considered inert, minimizing adverse impact to the environment where they are installed. In addition, composite poles can weigh up to 80% less than timber and steel poles, making them lighter to transport and safer to install.