AlphaGrade Base Coat:

AlphaGrade™ Base Coat

High Performance, Two-Component, Bio-Based, Polyurethane Base Coat for Restoring Gravel-Surfaced, Built-Up Roofs

AlphaGrade Base Coat is used to restore gravel-surfaced, built-up roofing (BUR) systems; it is applied after AlphaGrade, which secures gravel to the roof, and before AlphaGrade Top Coat, a highly reflective surface coating.  This combination provides three layers of waterproofing protection to aging but still functional gravel-surfaced roofs, so the roof does not need to be replaced. With virtually no smell, AlphaGrade Base Coat is perfect for use in sensitive environments such as schools, hospitals, occupied buildings, etc.


The AlphaGrade Base Coat is a two-component, bio-based, polyurethane liquid applied product.  Its high amount of bio-based content makes it both sustainable and environmentally responsible.  The high solids content results in thicker dry film compared to lower solids products.  AlphaGrade Base Coat is also low VOC (0g/L).

Roofing & Weatherproofing Peace of Mind

We deliver peace of mind to building owners and facility managers by managing roofing and building life cycles for customers in all industries, including education, healthcare, government, manufacturing and more.

  • Tremco Roofing offers the industry's most comprehensive roofing and weatherproofing solutions for restoration, repair, maintenance, replacement and new construction.
  • WTI (Weatherproofing Technologies, Inc.) provides roofing services, construction management and general contracting.
  • Our Canam Building Envelope Specialists affiliate provides building envelope solutions to eliminate air leaks, improve energy efficiency and reduce costs.


Phone: 1.800.852.6013