Waterproof Decking Material that Safeguards Surfaces

Miracote MiraFlex II Decking System is a multi-layered promenade deck coating consisting of formulated resins, cementitious underlayment and waterproof membrane. Designed to provide a decorative finished waterproof deck surfacing, MiraFlex II is ideally suited for either new construction or deck renovation. MiraFlex II is also available as an under tile roof deck membrane system for application over approved wood or concrete substrates.

MiraFlex II finished promenade roof deck, with proper preparation, can be applied over concrete, magnesite, elastomeric decking or plywood. For application over plywood, a metal lath reinforced underlayment (MiraPatch Series) is applied prior to the application of MiraFlex II Decking System. Learn More>


ColorPax LIP (Liquid Integral Pigment)
Miracote MPC (Multipurpose Protective Coating)
MiraGard Colorbond XL
MiraFlex Membrane A
Miracote Poly-Fabric
MiraGard HD 100
MiraGard HDWB
MiraPatch LM
MiraPatch RM 3

Hospitality Brochure
Brochure-Waterproof Decks, Floors & Membranes

Case Studies

Park Shore Retirement Community (MiraPatch RM, Mirabrane A, MPC)
Catamaran Resort Hotel (Miraflex II, Membrane A, MiraPatch RM, Colorbond)
Lake Highlands UMC (MiraStamp, Mirastain I, Miracote MVER)
Gilley's (MPC, Mirastain II, Mirathane U/A Sealer)
Corona Park (MPC, Colorbond)
Chama River Brewing Co. (MiraStamp)

Technical Data Sheets
Product Technical Data Sheet-w/ MLM
Product Technical Data Sheet-w/ MiraPatch RM 3
IG- 120a System X for Concrete Substrate
IG- 120b-1 for Plywood Substrates
IG- 120b-2 for Plywood Substrates (west coast only)
IG- 120c for Concrete Substrates
ICC-ES Evaluation Report ESR-1714
CSI- Over Concrete
CSI- Plywood Decking
Test -Resistance to Foot Traffic
Test -Water Vapor Transmission
Care & Maintenance

Safety Data Sheets
MPC Liquid
MPC Powder
Membrane A
MiraPatch RM 3 Liquid
MiraPatch RM 3 Powder

1A Stairway Flashing
2B Door Pan Flashing
3A Structural Grade Concrete Substrate
3A Structural Grade Concrete Substrate without Fabric
3a Working Structural Grade Concrete Substrate at Wood or Metal Stud
3B Plywood Substrate at Wood or Metal Stud Wall
4A Concrete Deck Edge Metal
Detail - 4B Plywood Deck Edge Metal
5 Flanged Deck Drain
8B Alternate Railing Mounting Food Plate
Miraflex II Submittal Package Addition

Why Use Cementitious Waterproofing to Protect and Fortify Concrete Decks

Concrete is a great material used in constructing decking systems, parking decks, and other structures. Apart from being durable, this material does not rot, rust, or burn. It is, however, porous by nature. Water (or even just water vapor) can undermine the stability and strength of concrete and result in deterioration. The damage becomes more profound when a corrodible material, such as steel, reinforces the concrete.

The good news is that you can perform cementitious waterproofing to protect concrete decks and prolong their lifespan. This method utilizes cementitious waterproofing membranes to shield concrete against moisture and water.

When you take the time to waterproof deck surfaces made of concrete, you can prevent spalling, a maintenance problem that causes the surface to flake off or peel. When left untreated, spalling can ruin a deck’s aesthetic appearance, as you’ll find unsightly pits and patches on the surface. On top of that, it can compromise the integrity of the surface.

Repairing a spalled concrete takes several steps, including cleaning the affected concrete area, getting rid of the loose concrete, applying a special repair material to fix the spalling, and curing the concrete. Rather than take these steps, you can prevent spalling altogether by effectively waterproofing the decking material.

The Characteristics of Cementitious Waterproofing

A deck with a cementitious coating provides you with the following benefits:

  • Chemical Resistant – You can apply this type of coating on decks that are susceptible to chemical spills
  • Resistance to Weather and Abrasion –If exposure or wear is going to be a problem in your facility, you can apply cementitious coating to keep surfaces protected
  • Flexible – The increased adhesion of cementitious coatings makes surfaces breathable. This means that water vapor won’t get stuck or result in blistering.

We have the waterproof deck surfacing systems that you can use for roof decks, pool decks, mechanical room floors, and more. Contact us for more information.

MiraFlex II Project: Salt Lake City UT

Miracote Sales Rep:
Bill Young, Professional Construction Products

Miracote Distributor:
Alta Paint & Coatings

Project/Builder Name:  Edge Homes

Miracote Product System Installed:
MiraFlex II Decking System

Mike Ash, Rose Coatings