Sto Corp.
Headquartered in Atlanta, Georgia, Sto Corp. is a global leader in cladding, air barrier, coatings and restoration systems trusted by construction professionals for more than 100 years. Known for its innovative building envelope solutions and commitment to sustainability, Sto manufactures high-performance products to protect buildings, enhance aesthetics and improve energy efficiency.
GMS is proud to carry a wide selection of Sto products, designed to help construction companies build smarter and better — no matter the scope of the project. With Sto’s state-of- the-art manufacturing facilities across North America and GMS’s proven logistics network, you can count on timely deliveries and top-tier customer service at every stage. Whether you're restoring a historic facade or constructing a modern high-rise, Sto building materials ensure your structure stands the test of time

GMS offers a selection of Sto Exterior Insulation and Finish Systems (EIFS) engineered for energy efficiency, moisture management, durability and design flexibility. These continuous wall systems incorporate advanced thermal insulation to create high-performance exterior cladding suited to a wide range of project needs.
StoTherm® ci is Sto’s core EIFS with a drainage wall system, integrating continuous EPS insulation, a fluid-applied air and water-resistive barrier, and a reinforced acrylic basecoat with finish. This system delivers excellent thermal performance, strong moisture control and a clean exterior surface suited to commercial, residential and multifamily construction.
StoTherm® ci GPS is a high-performance EIFS with drainage that delivers enhanced insulation values — including assemblies that reach R56 continuous insulation — using advanced GPS insulation board. StoGuard® air and moisture protection pairs with versatile finish options to support energy-efficient wall assemblies in demanding climates and code environments
StoTherm® ci Mineral is an EIFS with drainage incorporating non-combustible mineral wool insulation for projects requiring superior fire resistance and thermal performance. Combined with mineral wool insulation and a reinforced basecoat, StoGuard®’s moisture-barrier technology creates a robust, high-performance wall cladding solution.
GMS carries a full selection of Sto EIFS across our national network of yards. With access to Sto's entire product catalog and expert staff ready to assist, GMS is your go-to partner for any Sto product no matter where you’re located.
Looking for StoCast® elements, a specific StoColor® coating, or a stucco or rainscreen system? We’ll special-order it for you. Our customized product solutions are tailored to your project’s specific design, climate zone and building codes.
Our boom-and-scatter delivery service means your Sto products aren’t just dropped at the curb — they’re delivered right where you need them, when you need them. This ensures your project stays on time and on budget.
GMS combines nationwide reach with regional knowledge. Our team understands the unique needs of your area — from climate to code compliance and can guide you to the right Sto finishes, products and application techniques for your build.
Whether your build requires a StoPanel® solution, a StoPowerwall® or a StoVentec® Rainscreen system, GMS is your trusted distributor of Sto building envelope solutions. Visit your local GMS yard to explore Sto materials in person or connect with one of our product specialists to discuss your project needs today.
