Glue-Down Vinyl Plank Flooring: Do You Need a Gap Around the Perimeter?

When installing glue-down vinyl plank flooring, one of the most common questions is whether you need to leave a gap around the perimeter to allow for expansion. This type of flooring is quite different from floating floor systems, and it typically does not require such gaps. However, it is always a good idea to check the manufacturer's guidelines as recommendations can vary depending on the specific product and environmental conditions.

Understanding Glue-Down Vinyl Plank Flooring

Glue-down vinyl plank flooring is designed to be installed directly on the subfloor. Unlike floating floors, which are installed with a gap for expansion, glue-down flooring sticks firmly in place. This direct attachment helps to prevent movement and expansion due to changes in temperature and humidity.

Installation Instructions and Surface Preparation

Before installation, it is essential to consult the manufacturer's installation instructions. These guidelines are usually available on the manufacturer's website and should provide specific advice on substrate preparation and installation conditions. Best results are typically achieved on smooth surfaces such as tile and concrete. On plywood or wood surfaces, the different rates of thermal expansion can cause glued panels to come unstuck.

Temperature Control and Clean Substrates

The instructions often advise against installing flooring in uncontrolled temperature environments. A temperature-controlled space is recommended, ideally with 24/7 HVAC (Heating, Ventilation, and Air Conditioning) to ensure consistent conditions. Additionally, a clean surface is crucial; if the floor surface is not very clean, the adhesive may not stick properly, causing the planks to peel off and making further installation difficult.

Perimeter Gap and Baseboard Considerations

While glue-down vinyl planks generally do not require a large gap around the perimeter, a small gap (1/8 inch) can be beneficial to accommodate slight expansion. This gap should be sealed with clear silicone or covered with baseboard material. If you are planning to remove baseboards before installation, it is recommended to maintain a 3/8–1/2 inch gap to provide room for movement and to ensure the floor looks seamless when covered.

Conclusion

In summary, glue-down vinyl plank flooring does not typically require a 1/4 inch gap around the perimeter. Instead, a thin (1/8 inch) gap can be left to allow for minor expansion, which can then be concealed with baseboard or silicone sealant. It is always advisable to follow the manufacturer's guidelines and to create a temperature-controlled installation environment for best results.