A DIYer's Guide to Waterproofing a Concrete Deck Over a Garage Using Liquid Rubber Sealant

A DIYer's Guide to Waterproofing a Concrete Deck Over a Garage Using Liquid Rubber Sealant

Whether you're a seasoned DIY enthusiast or a novice dipping your toes into the world of home improvement, waterproofing a concrete deck over a garage can seem like a daunting task. However, with the right materials and a step-by-step guide, this project is entirely achievable. One of the most effective and user-friendly products on the market for this job is Liquid Rubber Sealant. This article will walk you through the process of how to waterproof a concrete deck over a garage using Liquid Rubber Sealant, a solution that's as reliable as it is affordable.

Understanding the Importance of Waterproofing

For starters, let's delve into why waterproofing your concrete deck is so crucial. Concrete, although robust and durable, is porous. This means it can absorb water, leading to potential damage such as cracks, leaks, and even structural weakening over time. Water intrusion can also cause mold growth, which poses health risks. By waterproofing your concrete deck, you're not only preserving its structural integrity but also enhancing its lifespan and usability.

Why Choose Liquid Rubber Sealant

When it comes to waterproofing, Liquid Rubber Sealant stands out for a couple of reasons. First, it's incredibly easy to apply, making it ideal for DIY projects. Second, it's cost-effective and provides a reliable, long-lasting waterproof barrier. Unlike many other waterproofing products, Liquid Rubber is VOC-free and non-toxic, making it safe for use around your family and pets.

Planning Phase

Before you get started, planning is the key to success. Start by checking the weather forecast to ensure that you have a few dry days ahead; this is necessary so that the sealant has time to dry and cure properly. Next, gather all necessary supplies, including Liquid Rubber Sealant, a roller or paintbrush for application, and protective gear such as gloves and safety glasses.

Preparing the Concrete Deck

Proper surface preparation is key to a successful waterproofing project. Begin by thoroughly cleaning the surface of the concrete deck. Remove any debris, dirt, or loose particles. If there are any cracks or gaps in the concrete, fill them with a suitable filler and allow it to dry before proceeding.

Applying the Primer

Liquid Rubber Sealant adheres best to a primed surface. Apply a layer of Liquid Rubber Multi-Purpose Primer to the entire concrete deck. Remember, the purpose of adding primer is to improve the adhesion that Liquid Rubber will have to your decking. Allow the primer to dry fully before proceeding for the best results. 

Applying the Liquid Rubber Sealant

Once the primer is dry, it's time to apply the Liquid Rubber Sealant. Using a roller or paintbrush, apply a generous coat of the sealant to the entire surface of the deck. Make sure to cover all areas, paying special attention to corners and edges. Make sure to apply thick, heavy coats for the best results. 

Letting the Sealant Cure

After you've applied the sealant, it needs time to cure. The curing process is when the liquid rubber transforms into a solid, creating a durable waterproof membrane. In most situations, it takes about 48 hours for a full cure of Liquid Rubber, but it can vary depending on the temperature and humidity levels. It's critical to avoid walking on the surface or exposing it to water during this time.

Inspecting and Touching Up

Once the sealant has fully cured, inspect your work carefully. Check for any areas you may have missed or spots where the sealant is too thin. If necessary, apply a second coat of Liquid Rubber Sealant to these areas and allow it to cure.

Maintenance and Care

Liquid Rubber Sealant requires minimal maintenance. Make sure to keep the surface clean by power washing it on a light setting once per month. If you notice any scratches or tears in the waterproof membrane, they can be easily repaired by applying a fresh coat of Liquid Rubber Sealant.


Waterproofing a concrete deck over a garage may seem like a big job, but with Liquid Rubber Sealant, it's a task that's easily within reach for the DIY community. Remember, when it comes to home improvement and DIY projects, the right tools and materials make all the difference. Liquid Rubber Sealant is a product that delivers on its promises, providing a safe, effective, and easy-to-use solution for waterproofing needs.