The best solutions for tiles when replacing a bathtub with a shower

Replacing a bathtub with a shower tray is one of the most common home renovations. Not only does it improve accessibility and safety, but it also optimizes space and gives the bathroom a modern touch. However, one of the most challenging aspects of this change is integrating the tiles. When removing the bathtub, it often leaves an area without tiles or with worn-out tiles that don't match the rest of the wall.

Facing this issue can raise many questions: Is it possible to keep the original tiles, or is it better to replace them completely? How can different types of coverings be combined without the result looking like a makeshift solution? What are the most aesthetic and functional alternatives to ensure a uniform finish that is resistant to moisture?

In this post, we explore the best tile solutions when replacing a bathtub with a shower, from design options to durable materials that resist moisture and everyday wear. Keep reading to discover how to refresh your bathroom without sacrificing functionality!

What type of tiles should you use in the shower?

When you decide to replace the bathtub with a shower tray, it is essential to choose the right shower tiles to ensure the space not only looks good but also remains functional and resistant to moisture. The ideal choice is to go for waterproof and easy-to-clean tiles. Porcelain tiles are an excellent option as they are highly resistant to water and wear, making them a durable choice for areas with high moisture exposure, like the shower. Additionally, porcelain tiles require minimal maintenance and stay in good condition for a long time, even with frequent use.

It is advisable to choose tiles with a non-slip surface to prevent accidents in the bathroom, especially when the floor is wet. This way, you not only ensure safety but also contribute to the longevity of the tiles, as many non-slip porcelain models have superior durability.

When choosing the tiles, it's also important to think about the design. Opting for neutral-colored tiles or soft textures can help create a sense of space in the bathroom, which is especially useful if you're replacing a bathtub with a shower in a smaller area. Moreover, these types of tiles can complement a wide variety of decoration styles, from the most modern to the most classic.

Tiles for shower wall covering

For the shower wall covering, it is essential to choose tiles that offer both aesthetics and durability. Porcelain tiles are one of the best options for this type of space. They are highly resistant to moisture, easy to maintain, and have great durability. Additionally, they come in a wide variety of designs, colors, and finishes, allowing you to personalize the bathroom according to your preferences.

Matte finishes are very popular for shower walls, as they better conceal watermarks and soap stains. If you’re looking for something more sophisticated, ceramic tiles are also a valid option, although it’s important to choose those with waterproof treatment, as they are less resistant than porcelain tiles. Additionally, tiles with a stone or marble effect are becoming very popular, as they bring a touch of luxury and elegance to the bathroom while maintaining their moisture resistance. In any case, it is important to ensure that the tiles you choose are waterproof and easy to clean, to guarantee the longevity of the covering and maintain hygiene in the shower space.

Tiles for shower floors

For shower floors, it is crucial to choose tiles that offer resistance, safety, and durability, as they will be constantly exposed to moisture and direct water contact. The best option is non-slip tiles, which help prevent slips and add extra safety, especially in bathrooms with frequent use.

Porcelain tiles are an ideal choice for shower floors. They are extremely resistant to water, wear, and stains, and they are easy to clean. There are models with textures or rough finishes that enhance grip without compromising the aesthetic design. You can also opt for large-format porcelain tiles if you prefer a more continuous and modern appearance with fewer joints.

Another very popular option is ceramic mosaics, especially in walk-in showers. Small pieces allow for better adaptation to the slope of the drain and provide excellent grip thanks to the increased number of joints, enhancing their non-slip properties. Additionally, they allow for the creation of interesting decorative patterns if you’re looking for a more personalized touch.

Regardless of the type of tiles you choose, make sure they have the appropriate non-slip rating (such as R10 or higher, according to European standards) to ensure safety in the shower. Additionally, it’s recommended to use waterproof grout to prevent water infiltration between the joints and to make maintenance easier.

Tips for tile joints in the shower

The joints of the tiles in the shower are a crucial aspect both for the aesthetics and durability of the covering. If not properly maintained, they can accumulate moisture, dirt, and even promote the growth of mold. Here are some tips to ensure strong, easy-to-maintain joints:

- Choose a high-quality waterproof grout. Opt for epoxy grout or grout with waterproof additives. Epoxy grout is more resistant to moisture, stains, and chemicals, making it ideal for areas exposed to water, like the shower. Although it’s a bit more difficult to apply than traditional cement grout, its durability makes the effort worthwhile.

- Appropriate joint thickness. Avoid making the joints too thin. A thickness of at least 2-3mm allows for better adhesion of the grout and reduces the risk of cracking over time. Very narrow joints can be more prone to cracking and accumulating dirt in the future.

- Correct grout application. Make sure the surface is clean and dry before applying the grout. Use a rubber float to spread the mixture diagonally over the tiles, pressing firmly to fill all gaps. Then, remove excess grout with a slightly damp sponge, but don’t press too hard to avoid weakening the grout.

- Sealing the joints. Even if you use waterproof grout, applying a joint sealer (especially in areas exposed to water) provides extra protection. This sealer acts as a barrier against moisture and prevents mold and mildew. It’s recommended to reapply it periodically, according to the manufacturer’s instructions.

- Regular maintenance. Clean the joints regularly with mild products, avoiding abrasive cleaners that may wear them down. To prevent mold, ventilate the bathroom well after showering and dry the walls if possible. A simple trick is to run a rubber squeegee to remove excess water from the walls.

- Flexible joints in corners and edges. For joints between walls or between the floor and the wall, it’s better to use sanitary silicone instead of grout. Silicone is flexible and can better withstand the structural movements of the bathroom without cracking. Make sure it is resistant to mold (fungicidal) for greater durability.

Taking good care of the joints not only improves the appearance of the shower but also extends the lifespan of the tiles, preventing long-term infiltration or moisture problems.

Benefits of tiles with joints

Tiles with joints offer a series of advantages both in terms of functionality and aesthetics, especially in wet spaces such as bathrooms and showers. While sometimes joints are minimized for visual reasons, their presence plays a fundamental role in the durability and safety of the covering. Here are the main benefits:

- Flexibility for structural movements. Joints allow tiles to adapt to small expansion and contraction movements caused by temperature changes, humidity, or settling of the structure. This helps prevent cracks in the tiles, as the joint acts as a "shock-absorbing" zone.

- Improved waterproofing. While tiles themselves are waterproof, joints help seal the space between them, preventing water from penetrating to the base. This is crucial in areas exposed to moisture, like the shower, as it reduces the risk of leaks and damage to the underlying structure.

- Easier installation. Joints allow for some tolerance in the tile placement. This means that even if there are slight variations in tile size or alignment, the joints help conceal them and maintain a uniform appearance.

- Mold prevention. When a quality grout is used, especially with antifungal or waterproof properties, joints can act as a barrier against mold and mildew. Moreover, it's easier to detect and treat mold on the surface of the joint rather than if it were leaking beneath the tiles.

- Aesthetic value. Joints also serve a decorative purpose. You can play with the color of the grout to create interesting contrasts or complement the tile design. For example, a dark grout with light tiles emphasizes geometric shapes, while a grout that matches the color of the tiles offers a more uniform, minimalist finish.

- Easy maintenance. If a joint gets damaged or dirty, it’s easier to repair or refresh the grout than replace entire tiles. There are specific products for cleaning joints without damaging the covering, and it’s even possible to apply new layers of grout to rejuvenate the bathroom’s appearance without major renovations.

- Safety in non-slip floors. On shower floors, joints provide better grip, reducing the risk of slips. This is especially important in walk-in showers or bathrooms for elderly people.

In short, while joints are sometimes seen as an aesthetic detail, they are essential for maintaining the structural integrity, waterproofing, and safety of the ceramic covering. With proper maintenance, they not only fulfill their practical function but also add a decorative touch to the space.

Advantages of jointless tiles

Jointless tiles or those with minimal joints offer a modern and sleek aesthetic, along with some functional benefits. Although it is nearly impossible to eliminate joints entirely (due to the need to absorb expansion), using ultra-thin joints or installing large-format tiles reduces their presence to a minimum. Here are the main advantages of this type of covering:

- Clean, uniform aesthetic. The biggest advantage of visible jointless tiles is their minimalist, elegant appearance. By reducing the separation lines, a continuous effect is achieved, providing a sense of spaciousness and modernity to the space. This is ideal for small bathrooms, as it makes the walls and floors appear larger and less cluttered.

- Easy cleaning and maintenance. With fewer joints, there are fewer spaces where dirt or lime deposits can accumulate. This makes daily cleaning easier and reduces the risk of moisture problems in the joints. Additionally, the typical dark stains that can appear in joints over time are avoided.

- Greater waterproofing. While joints contribute to waterproofing, in showers and wet areas, minimal joints reduce the risk of leaks, as there are fewer vulnerable points through which water can penetrate. Moreover, when combined with good joint sealing, this results in a highly water-resistant finish.

- Visual continuity. This type of finish is perfect for creating a coherent design across different spaces. For example, you can use the same type of tile in the bathroom and continue into the bedroom or living area, achieving a sense of flow throughout the house.

- Reduced accumulation of moisture and mold. In shower areas, where moisture is constant, reducing the number of joints decreases the likelihood of mold or bacteria growth, especially if large-format, waterproof materials like porcelain are used.

- Ideal for large-format materials. Large-format tiles are designed to be installed with very thin joints, allowing for continuous surfaces that mimic marble, natural stone, or polished cement. This type of covering is perfect if you’re seeking a contemporary, luxury style.

- Greater sense of order and harmony. By eliminating the visual interruptions of joints, the space feels more organized and harmonious, creating a sense of tranquility and balance, ideal for spa-like bathrooms or relaxation areas.

Tips for combining tiles when replacing a bathtub with a shower

When replacing a bathtub with a shower, you may face the challenge of combining the new tiles with the existing ones. Here are some key tips to achieve a harmonious, modern result:

- Opt for large tiles to create a sense of space. If the bathroom is small, large tiles are ideal to avoid making the space feel overcrowded. They also help reduce joints and create a sense of greater space, especially in the shower area.

- Mix textures for a unique touch. An interesting option is to combine different textures. Use smooth or matte-finish tiles for the shower walls and textured tiles on the floor. This not only adds an interesting visual touch but is also practical for preventing slips.

- Add color to the shower area. Are you ready to add a pop of color? You can choose vibrant-colored tiles or geometric patterns for the shower wall. This is a perfect way to create a focal point in the bathroom and bring life to the space.

- Define the shower area with a different design. Another option is to differentiate the shower area with tiles in different shades or patterns. If the rest of the bathroom features light tones, a darker tile wall in the shower can create an elegant contrast and highlight the shower area without overwhelming the bathroom.

- Mix tiles of different sizes. Don't be afraid to combine large tiles with smaller ones. Using different sizes, such as rectangular tiles on the walls and square ones on the shower floor, adds dynamism to the design without losing harmony.

Combine wall tiles with shower floor tiles

When replacing a bathtub with a shower, choosing a good combination of wall and floor tiles is key to achieving a harmonious and modern bathroom. Here are some ideas to get the perfect combination:

- Same tone, different texture. Use the same color for the wall and floor, but with different finishes (matte on the floor for better safety and glossy on the walls to reflect light).

- Elegant contrast. If you want a bathroom with more personality, choose light-colored tiles for the wall and dark tiles for the floor, or vice versa.

- Continuity effect. Use the same type of tiles for both the floor and the wall (like large-format porcelain or stone-effect tiles).

- Mosaic on the floor. Anti-slip mosaics in the shower area not only provide safety but also add a decorative touch that can contrast with or complement the wall tiles.

- Decorative details. If the walls have a neutral design, dare to use a floor with a geometric pattern or hydraulic effect for a more sophisticated look.

Replacing the bathtub with a shower is an excellent way to refresh your bathroom while optimizing space. By focusing only on the shower area walls, you have the opportunity to play with different materials, colors, and textures to achieve a fresh, modern aesthetic without complicating the design of the rest of the bathroom.

Whether using large tiles, decorative mosaics, or combining contrasting tones, the options are endless. The most important thing is to create a space that makes you feel comfortable and relaxed. Dare to personalize your bathroom and enjoy the shower of your dreams!