Mariseal 250 Roofing System

The Mariseal 250 Roofing System is a one component permanent elastic liquid applied polyurethane coating.

Mariseal is a premium, liquid-applied, highly permanent elastic, one component polyurethane membrane used for long-lasting waterproofing.

Offering excellent mechanical, chemical, thermal, UV and natural element resistance properties, Mariseal 250 is based on pure elastomeric hydrophobic polyurethane resins. Cold applied, it cures by reaction with ground and air moisture. Ideal for waterproofing roofs, balconies, under tile wet areas, traffic decks and green roofs. It is also proven for concrete constructions like bridges, decks, tunnels, car parks etc.

Mariseal Flat Roofing System

How Does Mariseal 250 Work?

Mariseal 250 is a high-strength, elastic, one-component polyurethane membrane applied in a liquid cold form with cold curing. The composition solidifies upon reaction with moisture contained in air and ground.

Why Choose Us?

  • Over 30 Years Experience
  • Excellent Customer Service
  • Insurance Backed Guarantees
  • We Get it Done on Time
  • Flexible Systems & Pricing
  • Rated 5 out of 5 by Our Customers

Mariseal 250 Test Box

Using the Mariseal 250 roofing system we formed a box that we could use to demonstrate how flexible the system really is.

Option 1: Stripping

Strip the roof of the old covering and replace with a new covering. Now, if you start to strip the roof, all sorts of other options open up:

  • Should I have a temporary roof put up over the old roof to protect the building?
  • How do I get all the old materials off the roof?
  • What is the cost of dumping the rubbish?
  • What is the cost of stripping the roof?
  • Stripping the roof will trigger part L1B of the building regulations, and I will have to insulate the roof.

Mariseal 250 Box Gutter

In this video we use the Mariseal 250 roofing system to form a new box gutter around the edge of this slate roof.

Option 2: Overlaying

Overlaying the roof with the Mariseal 250 roofing system:

  • No need for a temporary flat roof over the top as the roof will not be opened up.
  • No need for insulation.
  • Only remove the old stones and prepare the surface of the old flat roof ready for overlaying.
  • Overlay the roof using the Mariseal 250 roofing  system.

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