ALCO Updates

New Product

ALCO Shield Black MAG Underlayment
. More...

Installation Guide

ALCO Shield Detail Drawings
ALCO Shield Underlayment Installation Instructions & Drawings
are now available Online. Click Here to View...

Product Highlights

Granular+ Underlayment

The NEW & Improved ALCO Shield GRANULAR+ is now available. More...

ALCO Roof Repair Tape
24/7 Roof Repair Tape - Now available - Leak and Seam Repair Tape for TPO, EPDM, and Metal with Ultra Aggressive Sealability. More...

ALCO Warranty Information


Call Toll FreeĀ 
800-323-0029 for information on where to buy ALCO Roof Products.


About ALCO Products

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 1950's, National Varnish Co. entered the roof coatings market, developing a 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 1990's 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 and the NRCA - National Roofing Contractors Association.


With the cornerstone firmly planted, the company is poised
for growth.





With an expanded product line,
the company has
grown to reach the manufacturing
capabilities found today.





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