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Flooring for Hydroponics & Grow Rooms

The ever-increasing population and the need for more housing have led to a shortage of agricultural space. At the same time, there is a greater demand for food production. State-by-state changes in legislation associated with the growth of previously illegal substances are driving the need for more and larger temperature- and humidity-controlled indoor environments.

With improved technology and a marked decrease in the cost of LED and other types of grow lights, there has been a proliferation of alternative, indoor growing options, from Brooklyn to Brussels and Toronto to Tokyo. These include greenhouses and grow rooms, many with vertical, soil-free hydroponic gardens. These installations are custom-designed. One example is a grow house with a “growth medium” constructed from recycled plastic bottles that hold roots in place and provide a vessel and delivery system for needed nutrients.

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Special Considerations for Greenhouses and Grow Room Floors

A great deal of research has been done in evaluating the efficacy of outdoor greenhouses as compared to grow rooms in warehouses, and greenhouses are the clear winner. Particularly because of the natural sunlight that comes pouring in—even if it is not daily—energy costs can be dramatically reduced. It has been established that the photosynthesis in greenhouses is double, on average, and produces more vibrant, healthy plants.

Whether you are establishing a greenhouse or a grow room, however, the issues regarding flooring are essentially the same, as the substrate is most commonly a concrete slab.

The issues affecting flooring systems in the industry include the following:

  • Concrete is a porous substance that easily absorbs liquids and allows them to seep into the soil beneath. The regular watering of the plants and the humidity that needs to be maintained in the environment can lead to deterioration unless the concrete substrate is properly protected.
  • Concrete with a compromised or non-functioning vapor barrier can be subject to a condition known as Moisture Vapor Transmission (MVT), wherein moisture and moisture vapor from the soil underneath the slab moves osmotically upward through the concrete. The condition can result in blistering, bubbles and other damage to floor coverings.
  • Warm, moist air within a confined space easily invites the growth of microbes. The type of plants being grown generally dictates the hygiene levels demanded by code, with food and pharmaceutical plants topping the priority list.
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Optimal Flooring for Greenhouses and Grow Rooms

Epoxies and other fluid-applied resins are a smart way to coat and protect concrete slabs. When supplied by a quality manufacturer, they can be highly durable, resistant to abrasion and stains, and can be customized to:

  • Mitigate MVT (Moisture Vapor Transmission)
  • Help control the growth of microbes, fungi and pathogens
  • Provide skid resistance and enhanced traction
  • Withstand exposure harsh chemicals and ongoing wet conditions
  • Offer a wide variety of colors and finishes to bring any design to life

Further, high quality resinous flooring requires no waxing, buffing or polishing, making maintenance inexpensive and easy.

In particular, urethane mortar flooring systems offer great solutions for grow rooms and hydroponics facilities, due to unique benefits such as:

  • High tolerance for very moist conditions, including being installed over damp concrete
  • Thermal shock resistance, enabling the floor to be steam-cleaned
  • Rapid cure and low odor


Which coating is best for your facility?

The Florock team can help you evaluate your facility flooring needs and help you make an informed decision, so contact us today!

What Our Clients Are Saying

“We have had many different brands installed, but Florock Epoxy & Urethanes have held up to all the wear & tear of Hi-Traffic conditions better than all the rest. We have used Florock products for many years”

Ray Strong, Maintenance Supervisor Baldor Electric, Ft. Smith, AR