5 Common Mistakes to Avoid When Laying Parquet

Flooring is one of the most important elements that determines both the aesthetics of living spaces and the comfort experienced in daily life. Among flooring options, parquet has become one of the most popular choices for homes and workplaces thanks to its natural look, warm feeling, and long-lasting structure.

Common Mistakes to Avoid When Installing Parquet Flooring and Their Solutions

However, the installation process of parquet is not as simple as it may seem. Mistakes made during installation can quickly result in issues such as wood floor swelling, floor bulging, or surface deformations. These not only ruin the aesthetic appeal of the space but also lead to unnecessary costs and wasted time.

In this article, we will cover the most common mistakes made during parquet installation in both the US and the UK, the specific challenges posed by local climates and building practices, and the practical solutions you can apply. With the right knowledge, you can achieve a more durable, long-lasting, and aesthetically pleasing floor.

1. Insufficient Surface Preparation

One of the biggest mistakes in parquet installation is neglecting the preparation of the subfloor. If the surface is uneven, cracked, or not properly cleaned, parquet planks will not settle correctly. This often leads to gaps, uneven levels, or even floor bulging within a short time.

1. In the United States, this issue is frequently seen in basements or ground floors where concrete slabs can retain moisture. If not sealed or treated correctly, moisture will rise and cause wood floor swelling.
2. In the United Kingdom, older Victorian or Edwardian homes often have damp subfloors that require an effective damp-proof membrane before installation. Skipping this step is one of the primary reasons parquet floors fail prematurely.

Solution:

1. Always clean the subfloor thoroughly before starting the installation.
2. Cracks and holes should be filled with appropriate filler material to create a smooth surface.
3. Moisture levels should be measured and, if necessary, a vapor or damp-proof barrier should be applied. This is especially important in damp climates like the UK or in humid US regions such as the Southeast.

2. Choosing the Wrong Material

Not all parquet types are suitable for every space. Selecting the wrong material often results in rapid wear and costly replacements. For example, low-density flooring placed in high-traffic areas will scratch and wear much faster.

Regional Insight:

1. In the US, homeowners often choose laminate or engineered hardwood for high-traffic family rooms. Retailers like Home Depot and Lowe’s provide AC4 and AC5 rated flooring that withstands heavy use.
2. In the UK, many consumers look for compatibility with underfloor heating systems, as radiant heating is increasingly popular in modern builds. Not all parquet types are suitable for this, and choosing the wrong one can result in warping.

Solution:

1. Choose high-density, durable materials for areas with heavy foot traffic.
2. For spaces exposed to water such as kitchens, entryways, or bathrooms, water-resistant parquet should be used.
3. In the UK, always check BS (British Standards) certifications to ensure the product meets moisture and safety requirements.

3. Not Leaving Enough Expansion Gap

Parquet naturally expands and contracts with temperature and humidity changes. If there isn’t enough room left for this natural movement, it will cause wood floor swelling and visible deformation.

Solution:

1. Always leave at least a 10 mm (1 cm) expansion gap between the parquet and the walls.
2. In larger American homes with open-plan layouts, extra expansion joints may be needed to prevent floor bulging.
3. In UK homes, where rooms are often smaller but dampness is higher, consistent expansion gaps are essential to accommodate seasonal changes.

4. Laying the Flooring in the Wrong Direction

The direction in which parquet is laid significantly impacts the overall look and functionality of the room. Poor alignment can make the room feel smaller, darker, or visually unbalanced.

Regional Practice:

1. In the US, installers often align planks parallel to the longest wall to create a sense of openness in suburban homes.
2. In the UK, it’s more common to install flooring parallel to natural light sources, especially in terraced houses with narrow rooms, to enhance brightness.

Solution:

1. Consider both light flow and room dimensions when determining direction.
2. For modern apartments in New York or London, laying the planks diagonally can provide a stylish, contemporary look.

5. Ignoring Proper Underlayment and Adhesives

Durability doesn’t only depend on the planks themselves. If the underlayment is weak or the wrong adhesive is used, the flooring will loosen or create squeaking noises over time.

Regional Tip:

1. In the US, underlayments with high soundproofing ratings (STC/IIC) are often required in multi-family housing.
2. In the UK, acoustic underlays are essential in flats to comply with building regulations regarding sound transmission.

Solution:

1. Use quality underlayment materials that provide soundproofing and moisture protection.
2. Select adhesives recommended by the parquet manufacturer. Using incorrect adhesives can permanently damage both the flooring and the subfloor.

6. Preventing Wood Floor Swelling and Bulging

The most common problems in parquet flooring are wood floor swelling and floor bulging. These issues usually occur because of poor material selection, lack of moisture control, or ignoring the need for expansion gaps.

Preventive Measures:

1. Always measure the moisture level of the subfloor before installation.
2. Select water-resistant planks, especially for spaces exposed to humidity.
3. In the US Midwest, where winters are dry and summers are humid, humidity control inside the home is critical.
4. In the UK, consistent ventilation is necessary to combat damp and prevent mold along with swelling.

7. Professional Installation: A Worthwhile Investment

While DIY installation may seem appealing at first, parquet flooring requires precision and expertise. Without professional help, mistakes such as uneven surfaces, poor alignment, or lack of expansion gaps can occur easily, leading to wood floor swelling or parquet bulging within months.

1. In the United States, many homeowners rely on certified installers who understand ASTM flooring standards.
2. In the United Kingdom, seeking a FENSA-registered or BS-compliant installer ensures the work meets building codes.

Professional installers analyze the subfloor, select suitable materials, and apply the correct techniques. This ensures not only an aesthetically pleasing result but also a long-lasting and trouble-free floor.

Frequently Asked Questions (FAQ)

What causes parquet swelling?

Swelling usually occurs due to moisture, water exposure, or improper installation. When no expansion gap is left, the planks press against each other, causing swelling and buckling.

How can parquet buckling be prevented?

By choosing the right materials, controlling humidity, and performing regular maintenance. Using proper underlay, maintaining indoor humidity balance, and avoiding direct water contact are the most effective solutions.

How much expansion gap should be left?

A standard 1 cm expansion gap should be left around the edges. In larger areas or with underfloor heating systems, this gap should be increased.

How can swollen parquet be fixed?

For minor swelling, placing a heavy object may temporarily flatten the area. However, the permanent solution is to remove the damaged plank and replace it. For large areas, professional help is recommended.

Is parquet water-resistant?

Standard laminate parquet is sensitive to water. However, modern water-resistant laminate flooring (Aqua series) is available and commonly used in kitchens and hallways.

Why do parquet planks separate?

Lack of an expansion gap, low humidity levels, or poor installation may cause gaps between planks. Keeping the indoor humidity balanced helps prevent this issue.

What is the ideal indoor humidity to prevent parquet swelling?

The optimal indoor humidity should be between 45–60%. Extremely dry or humid conditions can damage parquet over time.

Is underlay necessary under parquet?

Yes. Underlay not only provides sound and thermal insulation but also helps prevent issues caused by moisture, extending the lifespan of the flooring.

Can underfloor heating cause parquet swelling?

If non-compatible flooring is used or if the heating is set too high, parquet may expand and swell. Always choose parquet models specifically marked as underfloor heating compatible.

We Learned the Tips for Parquet Flooring

Installing parquet flooring is a process that requires planning, care, and expertise. Even small mistakes can result in serious problems such as floor bulging, wood floor swelling, or reduced lifespan of your investment. However, with the right material choices, proper installation methods, and regular maintenance, you can easily avoid these issues.

For American homeowners, considering factors like basement moisture, wide open-plan layouts, and ASTM standards will ensure a reliable installation. For UK residents, damp-proofing, underfloor heating compatibility, and compliance with British Standards are key to long-lasting performance.

Well-installed parquet is more than just a design element; it’s a long-term investment that enhances the quality of your living space. If you are unsure about certain steps, seeking professional guidance will save you time, money, and future headaches.