How long do floors smell after refinishing?

Managing Floor Refinishing Smells: A Complete Guide to Timeline and Solutions

When it comes to home improvement projects, few tasks can be as simultaneously rewarding and disruptive as refinishing your floors. The gleam of newly polished wood or the sleekness of a modern finish can breathe life into a room, elevating the entire space. Yet, for all the aesthetic benefits, there’s a downside that many homeowners don’t fully appreciate until they’re knee-deep in the process: the smell.

So, how long do floors smell after refinishing? The answer is not as simple as one might wish, and the lingering scent depends on various factors—from the type of finish used to the conditions in your home. Let’s dig into the details so you can approach this task with eyes (and nose) wide open.

Why Does Floor Refinishing Produce a Smell?

Before we delve into the duration of the scent, it’s worth understanding what causes it. Most of the odour stems from the volatile organic compounds (VOCs) present in many floor finishes. VOCs are chemicals that evaporate at room temperature and contribute to that strong, heady smell you might associate with fresh paint or varnish. These compounds are not just unpleasant; they can also be harmful if inhaled in large amounts, making proper ventilation critical.

When refinishing a floor, the type of product used plays a massive role in the olfactory aftermath. Some finishes emit fewer VOCs than others, so the type of finish you choose can impact not just the smell, but how long it lingers.

Types of Floor Finishes and Their Smell Profiles

1. Oil-Based Polyurethane
   This is perhaps the most common type of floor finish due to its durability and rich appearance. However, it comes with a significant downside: a pungent odour. The smell from oil-based polyurethane can be potent, lingering for up to two weeks, particularly if the ventilation in your home isn’t optimal. The high VOC content in oil-based products is what makes the smell stick around. While you’ll likely notice the strongest scent in the first 24-48 hours, traces can persist for days after. It’s not uncommon for the odour to subtly hang in the air for a week or more, especially in enclosed spaces.
2. Water-Based Polyurethane
   A more modern, eco-friendly alternative is water-based polyurethane. This finish emits far fewer VOCs than its oil-based counterpart, which means a shorter duration of smell. You might notice an odour for the first 24-48 hours, but it typically dissipates much faster—often within three to four days. One of the main advantages of water-based finishes is that they are much less intrusive when it comes to smell. They dry quicker too, meaning that the disruption to your home life is considerably less.
3. Wax Finishes
   Wax finishes have a more subtle scent compared to polyurethanes. The smell is typically milder, and while you might notice a faint odour for a day or two, it doesn’t have the same cloying, chemical punch as oil-based products. However, wax doesn’t provide the same level of protection as polyurethane, so its benefits may not outweigh its use in high-traffic areas.
4. Natural Oil Finishes
   If you’re looking for the most natural option, finishes like tung oil or linseed oil are worth considering. These produce minimal odour and have a more organic smell, reminiscent of freshly cut wood or mild plant oil. The scent usually dissipates within a day or two, making them a popular choice for those sensitive to strong chemical smells.

Factors That Affect How Long the Smell Lingers

1. Ventilation

Ventilation is the single most important factor in determining how long a floor smells after floor refinishing. The more airflow you can encourage, the faster the VOCs will disperse and the sooner the smell will fade. Opening windows, using fans, and even placing air purifiers around the room can make a significant difference.

For those with homes in built-up urban areas, where opening windows might invite in noise or pollution, using mechanical ventilation becomes crucial. This could be as simple as strategically placing oscillating fans to direct airflow or using more advanced options like negative air pressure machines.

2. Temperature and Humidity

The UK weather, as any Brit will tell you, is famously unpredictable. Temperature and humidity play a role in how long your home retains that unmistakable “freshly finished” smell. Warmer conditions tend to speed up the evaporation process, which means the VOCs will dissipate quicker. On the flip side, damp or humid weather can slow down this process, prolonging the smell.

In the cooler months, when windows are less likely to be open, it’s even more crucial to use interior fans and heating to facilitate faster curing and dispersion of the smell.

3. Type and Age of Wood

Interestingly, the type and age of the wood being refinished can influence the smell duration. Older, more porous wood might absorb more of the finish, leading to a longer period for the odour to fully dissipate. In contrast, harder, newer wood surfaces may not soak up as much product, allowing for a quicker dry time and shorter smell duration.

4. Size and Layout of the Room

Larger, open-plan spaces are more forgiving when it comes to lingering smells because they have more air volume for the odours to disperse into. Smaller, closed-off rooms can trap the smell, causing it to linger for days. If you’re refinishing floors in a narrow corridor or a small bedroom, expect the scent to hang around longer than in a spacious living area.

How to Speed Up the Smell Dissipation Process

If the idea of living with the chemical scent for days is intolerable, don’t worry—there are steps you can take to accelerate the process.

1. Maximise Ventilation
   As mentioned earlier, increasing airflow is the best way to expedite odour removal. Open every window you can, and set up fans to create a cross-breeze. This method is especially effective if you can position fans to push air from one window and out another, creating a continuous flow.
2. Use Air Purifiers
   Air purifiers equipped with activated carbon filters can help to remove VOCs from the air, thereby reducing the smell. These devices are particularly effective in smaller, enclosed spaces where airflow may be restricted.
3. Baking Soda Absorption
   An old trick for absorbing odours involves placing bowls of baking soda around the room. Baking soda is a natural odour absorber and can help mitigate the smell faster. Leave the bowls out for 24-48 hours and replace them as needed.
4. Essential Oils and Natural Remedies
   For those who are partial to a more aromatic intervention, using essential oils like eucalyptus or tea tree can provide a fresh scent to help mask the unpleasant chemical odour. Be sure to only use oils sparingly, as you don’t want to create a conflicting medley of smells.

How Long Should You Stay Out of the House?

If you’re planning to refinish your floors, you might wonder whether you should book a hotel or plan to stay with friends for a few days. For oil-based polyurethane, it’s advisable to stay out of the house for at least 48-72 hours due to the high VOC content. After this initial period, the smell may still be noticeable but less intense.

For water-based finishes, you may only need to stay away for 24-48 hours, depending on the ventilation and your sensitivity to odours. Wax and natural oil finishes generally don’t require you to vacate the house unless you’re particularly sensitive.

Health Considerations

It would be remiss not to touch on the potential health impacts of prolonged exposure to floor refinishing odours. While the smell itself might be unpleasant, the VOCs responsible for it can lead to more serious issues. Short-term exposure can cause headaches, dizziness, and nausea, particularly for those with respiratory conditions or chemical sensitivities.

For families with small children, pets, or elderly members, it’s crucial to ensure that the home is adequately ventilated and that everyone is kept away from strong-smelling areas until the odour has diminished. Prolonged exposure to high levels of VOCs has been linked to more severe health concerns, so erring on the side of caution is wise.

Final Thoughts

So, how long do floors smell after refinishing? In summary, the duration can range from just a day or two to over a week, depending on the type of finish used, ventilation, and the specific conditions of your home. Oil-based polyurethane can take up to two weeks for the smell to fully dissipate, while water-based options usually clear within a few days. Natural oils and waxes tend to emit the least intrusive odours, often disappearing within 48 hours.

Armed with this knowledge, you can better plan your floor refinishing project, balancing the desire for that stunning, fresh finish with the practicalities of daily living.