AlphaGuard BIO Top Coat:

AlphaGuard™ BIO Top Coat

A High Performance, Two-Part, Bio-Based, Polyurethane Roof Coating

The AlphaGuard BIO Top Coat (TC) can be used in a variety of projects, including roof restoration, approved re-cover and new construction assemblies, IRMA and vegetative roof systems. It is used as a surfacing over AlphaGuard BIO Base Coat and reinforcement.  AlphaGuard BIO TC is available in highly reflective white, or the following colors: beige; light/medium/dark gray, sand and safety yellow.  

With 60% biobased content, AlphaGuard BIO Top Coat has attained BioPreferred certification from the U.S. Department of Agriculture.

Download our AlphaGuard system brochure here, which includes information on the AlphaGuard BIO and MT systems.  Download the AlphaGuard BIO and MT installation guide.  


The AlphaGuard BIO TC is a two-part, bio-based, polyurethane roof coating.

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., a subsidiary of Tremco Incorporated), 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.


US: 1.800.852.6013

Canada: 1.800.668.9879