The MonoSeal Roofing System

Made to the original 1980’s American formulation, that utilizes only high – quality US resins, the MonoSeal system is a component part of a truly sustainable, life of building roofing system.

The MonoSeal System and techniques like it were the revolutionary new fluid applied processes that shook the traditional roofing industry when first introduced to the USA in the late 1980’s. AguaSeal Waterproofing Systems has stayed true to those original formulas, utilizing the highest-quality US resins as our base.

MonoSeal takes roofing away from bitumen-based climate damaging systems and other short term, stop-gap Band-Aid type fixes, and instead provides the Contractor with the peace of mind of a one-stop shop solution to every roofing problem, including all flashing details around substrate penetrations, parapet walls, roof drains, scuppers, and other complicated waterproofing scenarios on every type of roof.

In a mere 20 years, this pioneering fluid applied break through technology has grown from zero to represent approximately 15% of a $36+ Billion nationwide roofing industry. AguaSeal is here to take that to at least 20% in the next few years.

The building owner wins simply because a MonoSeal life of building roofing system provides him or her with the satisfaction that he never again needs to maintain a capital budget for roof replacement.

The MonoSeal System is comprised of MonoBase, MonoTop, and the optional HardTop, which all work as component parts of a permanent roofing system with perpetual renewable warranties.

Everyone wins with AguaSeal.


MonoBase is a water based, acrylic, flexible, durable, and highly elastomeric waterproofing base that is suitable for application over most low slope, metal, and other roofing substrates. MonoBase is used in conjunction with MonoTop to provide a single ply watertight membrane.

The 100% adhesion of the system to the existing roof substrate eliminates the expense of old roof removal and disposal.

Video – MonoBase Application


MonoTop is an acrylic elastomeric compound applied as a weather-coat over MonoBase. MonoTop is both ultra-violet and infrared resistant, and seals MonoBase against the damaging effects of sun, wind, and rain.

An application of MonoTop will effectively change the radiant temperature of the roof substrate to a cooler, ambient temperature, helping provide a more energy efficient interior to the building.

The sustainability of MonoTop prolongs the life of building roof system and never requires tearing off, which ultimately eliminates the cost of old roof removal and disposal. This product provides significant cool roof properties, increasing energy cost savings to the building owners.

Unlike traditional roofing systems, MonoTop wears from the top down, effectively losing one mm of millage per year. It is therefore an extremely straightforward process to rebuild millage after 10, 15, or 20 years by applying two more coats of MonoTop to the substrate, thereby qualifying for another long – term warranty.

Video – MonoTop Spray Application



HardTop is a variation of MonoTop, specifically formulated and blended to produce a hard, smooth, and glossy surface that is extremely dirt and grime resistant, and easily maintained over the years in a bright white finish.

As with MonoTop, it is a highly flexible, water-based acrylic elastomeric compound applied as a weather/wearcoat over either of Agua-Seal Waterproofing Systems’ foundation coatings: MonoBase or AguaBase.

Hardtop is particularly recommended by AguaSeal Waterproofing Systems as the finish coat application for use on all types of metal roofs.

What are the advantages?

  • Sustainable life of building and roof system
  • System never requires tearing off
  • Eliminates expense of old roof removal and disposal
  • 100% adhesion of system to existing roof substrate
  • Resistant to acid rain and chemical pollutant
  • Non-toxic formulation
  • Meets VOC emission regulations
  • No requirement to close facilities for installation
  • No special equipment or tools required
  • Ease of application and fresh water clean up
  • Non-combustible, Non-flame spreading