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WATERPROOF DECK SYSTEMS: RELIABLE MOISTURE BARRIERS

Waterproof Decking Overview

Property managers know that protecting facilities from the damage that water can inflict while providing safe deck and walking surfaces is one of their most important responsibilities. Fortunately, Westcoat can help with systems for waterproof decking on balconies and around pools, and solutions for protecting and beautifying parking areas, walkways, or rooftop decks. With quality waterproof deck systems for both concrete and plywood surfaces, Westcoat provides long-term, cost-effective solutions that look beautiful and can protect from chronic water exposure, while giving property owners and managers an excellent return on this most important investment.

  • Deck Inspection Checklist

    Download this checklist to do a proper inspection on any deck anywhere.

Waterproof Deck Coating System Options

Whether you need a waterproof deck coating system for concrete or plywood surfaces, Westcoat offers a variety of quality, long-lasting waterproof solutions.

Plywood coating in a housing complex

Waterproof Deck Coating Systems for Plywood

  • ALX™: One-hour fire-rated and wildland-urban interface compliant, recommended for balcony and roofway decks and on walkways.
  • ALX™ Solar Reflective Finish: Beautiful, with a reflective finish that lowers temperatures, excellent for balcony decks, roof decks, and walkways.
  • ALX™ Pro: With a reinforced membrane and an optional 20-year warranty, best on balcony decks, roof decks, and walkways.
  • ALX™ Pro Solar Reflective Finish: With a reflective finish that lowers temperatures and an additional reinforced membrane layer, best for balcony decks, roof decks, and walkways.
  • ALX™ and ALX™ Pro Waterproofing Underlayment: Excellent sound reduction qualities under concrete, tile, or stone, ideal for balcony decks, roof decks, and walkways.
Concrete coating in a housing complex

Waterproof Deck Coating Systems for Concrete

  • MACoat™: Flexible, with color and skid-resistant texture options, recommended for balcony decks, as well as garages and walkways.
  • MACoat™ Waterproofing Underlayment: Flexible and durable for use under tile or between slab applications, excellent for balcony decks, garages, and walkways.
  • MACoat™ Solar Reflective Finish: Lowers surface temperature and resists the urban heat island effect, best for balcony and roof decks, garages, and walkways.
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Get in Touch

Contact an waterproof specialist today!

How to Waterproof a Deck

The Westcoat ALX™ deck waterproofing system is designed for application over plywood surfaces and the MACoat™ system is for installation over concrete.

Formulated for plywood surfaces, the ALX™ system integrates acrylic resins and cement blends into a reinforced, galvanized metal lath, then finished with a variety of Wescoat sealers. It can be laid over plywood to create an attractive, concrete-like finish that’s durable and waterproof, with options to reduce heat, resist slips, or other requirements.

MACoat™ is Westcoat’s fiberlath-reinforced deck system engineered for use on above-grade concrete and reinforced plywood decks. It’s excellent for the restoration of elevated walking surfaces or any area subject to heavy foot traffic. It can be applied to new decks or existing deck systems.

Deck Waterproofing System FAQs

  • What exactly does “system” imply?
    Westcoat systems are a step-by-step application process of rigorously tested coating products that when installed per specifications can provide superior performance for waterproofing applications that meet building standards and codes.
  • How does Westcoat differ from similar systems?
    Westcoat ALX is the only IAPMO evaluated metal lath waterproofing system that meets the following standards:

    • Class A Fire Tested
    • One Hour Fire Rated
    • Class I Vapor Retarder
    • Option for a 20 Year Warranty with ALX Pro
    • Wildland-Urban Interface certified
    • Meets City of LA building codes
  • What is the life expectancy of your systems? What is the warranty?
    We offer an industry-leading 20-year warranty for ALX Pro (must be installed by a QCA) and when properly maintained can last up to 30 years or more.
  • How complicated is the application? Can my maintenance team handle it? If not, how is installation arranged?
    For professional use only. A properly trained, equipped, and licensed QCA should install our systems. We have a nationwide network. Once installed, maintenance teams can perform regular maintenance such as cleaning and resealing the topcoat.
  • If it’s a contractor, what is Westcoat’s involvement in the installation? Am I the customer of Westcoat or the contractor?
    Westcoat is the manufacturer, and we can recommend a QCA in your area. You are the customer of the contractor.
  • Are your systems suitable for pool or hot tub areas?
    Our systems are suitable for pool and hot tub areas, but not made for the inside surface since our products are for walking surfaces. Our Texture-Crete and 11-10 systems are great options for pool decks and walkways around spas.
  • How are the surfaces cleaned or otherwise maintained for long life?
    We recommend regular inspection and a maintenance schedule of 3-5 years based on traffic. See more information in our General Maintenance Guide.
  • What common mistakes do people make with these, and how can I avoid them?
    Not seeking properly trained and licensed professional contractors, improper or lack of preparation of substrate, and not following manufacturing guidelines.
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Waterproof Solutions

See all Waterproof Solutions
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Waterproof Plywood

Check out the plywood waterproof products
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Waterproof Concrete

Check out all of the Concrete Waterproof products
  • What we really appreciate is the "consistency in the can”. When you’re out in the field opening a kit of material, the last thing you want to worry about is what you’re going to find inside. Before finding Westcoat, that was a real concern with some of their competitors. Since switching to them a decade ago, that's no longer an issue. In a very packed industry with hundreds of manufactures to choose from, Westcoat stands head and shoulders above the crowd!

    Jeff Bach, President ( Bach Custom Coatings )
  • Once we discovered Westcoat Specialty Coating Systems and saw the high quality and integrity of the finished product, we “planted our flag” and have no intentions of going anywhere else. We have a loyal base of general contractors who repeatedly come to us to have Westcoat installed on their jobs--whether new construction or renovations. Our reputation in the industry through the use of Westcoat systems is growing with each day, and it’s wonderful to finally be installing coatings that we know will serve our clients well for many years to come.

    Joe McNair, ( Daddario Roofing Inc. )
  • As President of Decking Around, I have been working with Westcoat for 20 plus years, over all these years we have grown together and I consider them to be family! We have been through a lot of improvements and changes but what hasn't changed is the great support we as contractors need to keep our business thriving. Westcoat gets a Five Star rating from me, keep up the great work and is always a pleasure to be part of the family.

    Dave Jefferson, President ( Decking Around )
  • I found the Westcoat product line about 10 years ago when my Epoxy Company was only a year old. We had struggle with hot tire pick up with our previous product line. The Westcoat reps were always available to answer questions and guide us. Ten years later we still continue to grow and I prefer Westcoat as my product line. I highly recommend everyone to install this product and we continue to use their products daily.

    John Proffitt, Owner ( Tulsa Garage Gurus )
  • We have used Westcoat materials for 7 years.  The quality and technical support is second to none. The team at Westcoat does more than provide a quality solution, though. They are true partners who are as committed to our success as they are to their own.

    Matt Molander, Owner ( M7 Solutions )
  • Surfacing Solutions Inc. has used Westcoat Specialty Coating Systems for more than 15 years, they are one of the few companies where their products have shown us sustainability in our industry. We utilize this company not only for our belief in the products but because of the support we receive from the people of Westcoat. One of SSI’s  core values are “Relationships” so we are appreciative of the relationship we have with Westcoat and their Team.

    Shawn Halverson, CEO ( Surfacing Solutions Inc. )
  • BBH has been applying the Westcoat systems for the past 14 years & cannot say enough about its durability, applicator friendly products, and wide range of finishes, creative marketing & one of the best service support teams I've ever worked with. You never feel like you are on your own when facing challenges in the field. After working with Westcoat for several years, you realize that it's a privilege to be part of a great culture aside from the product lines.

    Daryle Brown, VP ( BBH )
  • Using the Westcoat family of coating products has allowed me to one-stop-shop all of my coating projects needs from Cementitous to Waterproofing to Epoxies. With WestCoat I secured my largest cementitous coating project ever and their support goes far beyond just answering questions.  My representative answers the phone after hours and across time zones and is always at the ready to lend support to me.   He helps prior to the sale with trainings through the sale and application with site visits and post sale with follow ups and warranty documentation.  Couldn't be more happy satisfied as a coating contractor/estimator.

    Scott Barnes, Estimator ( Central Pacific Specialty Contractors )
  • Our company has been a distributor of Westcoat products for over 14 years now.  Westcoat products are of the highest quality and are reliably consistent, which means a lot to our applicators.  Westcoat does extensive in house testing on their products so when there are application questions they have the answers.  Westcoat’s commitment to quality and a positive application experience has made them a pleasure to do business with these many years.

    Brent Zaemann, Vice President of Sales ( Sealant Specialists )

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