When it comes to installing new flooring, homeowners often wonder if it is possible to install flooring directly over treated plywood. Treated plywood, also known as pressure-treated plywood, is specifically designed to resist decay and insect damage. While it is commonly used for outdoor applications such as decks and fences, it can also serve as a suitable substrate for indoor flooring. In this article, we will explore the feasibility of installing flooring over treated plywood and discuss the factors to consider for a successful installation.
Understanding Treated Plywood:
Treated plywood is a type of plywood that has been treated with chemical preservatives to increase its durability and resistance to rotting, decay, and insect infestation. The treatment process typically involves impregnating the wood with chemicals, such as copper compounds, which provide protection against fungal decay and termite damage. The treatment makes the plywood more resistant to moisture, prolonging its lifespan.
Using Treated Plywood as a Substrate:
Treated plywood can be an excellent substrate for various types of flooring, including hardwood, laminate, vinyl, and tile. However, several factors need to be taken into account before installing flooring over treated plywood.
1. Moisture Level:
Before installation, it is crucial to ensure that the treated plywood has reached an appropriate moisture level. Moisture content in wood should generally be between 6% and 8% for indoor installations. Excess moisture may cause the wood to expand, contract, or warp, affecting the stability of the flooring. Therefore, it is recommended to acclimate treated plywood indoors for a few weeks before installing the flooring.
2. Smooth Surface:
To achieve a smooth and even flooring surface, it is essential to prepare the treated plywood properly. Inspect the plywood for any raised areas, knots, or imperfections that could cause an uneven flooring installation. Sanding down rough spots and filling in gaps with wood filler can help create a level surface for the flooring.
3. Compatibility of Adhesive or Fasteners:
When installing certain types of flooring, such as vinyl or carpet, using adhesives or fasteners becomes necessary. Ensure that the adhesive or fasteners you choose are compatible with treated plywood. Some adhesives or fasteners may corrode or deteriorate when in contact with the preservatives used in treated plywood. Always check the manufacturer’s recommendations or consult a professional to ensure compatibility.
4. Consider Underlayment:
Depending on the type of flooring you choose, the use of an underlayment may be recommended. An underlayment not only provides additional cushioning and noise reduction but also helps to create a barrier between the treated plywood and the flooring material. This can be particularly useful if there are concerns about potential chemical leaching from the treated plywood.Installing flooring over treated plywood is indeed possible. However, it is essential to consider factors such as moisture content, surface preparation, adhesive compatibility, and the use of underlayment for a successful installation. Following proper guidelines and seeking professional advice when necessary will help ensure a durable and aesthetically pleasing flooring solution. Treated plywood, with its enhanced resistance to decay and insects, can serve as a reliable substrate for a wide range of flooring materials, providing homeowners with a reliable and long-lasting flooring option.