About ALCO

Innovation and a commitment to the marketplace drive our product development.


ALCO PRODUCTS LLC was founded in 2009 to acquire the assets of the National Varnish Company, a provider of varnishes and coatings founded in 1912. In the 1950s, National Varnish Co. entered the roof coatings market, developing deep expertise in asphalt blending and adding ALCO as a brand name. Over the next several decades, the company continued to expand the product line offered to its customers by utilizing the company’s asphalt technology, focusing on building products for above and below grade applications. The next growth phase occurred in the 1990s as the company began to manufacture modified asphalt bitumen self-adhering roof underlayment products. The company continues today to develop new products using 21st-century technology.

ALCO’s core business revolves around the manufacturing and distribution of roofing and building products channeled through professional roofing distributors. ALCO is able to leverage nearly 100 years of experience in blending and asphalt technology to deliver quality products to the professional contractor market.


To exceed the expectations of our customers and ourselves, through developed checks and balances of our complete organization–people, products, and service–to meet the needs of our customers and their customers.

With the creation of a customer-driven organization, we can increase customer loyalty leading to a larger market share and develop an environment to work in that is healthy, beneficial within and out of the organization.


To see our customers being provided with the highest degree of quality and service in the market creating the highest level of satisfaction establishing their and our future success.


We are proud to be affiliated with CRCA – Chicago Roofing Contractors Association.

With the cornerstone firmly planted, ALCO Products is poised
for growth.


580 St. Jean Detroit, MI 48214-3476

Toll Free: 800-323-0029

Local: 313-823-7500

Fax: 313-331-4726


ALCO Products manufactures a variety of high-quality roof protection products for residential and commercial use, including a complete line of ALCO Shield™ underlayments.