Clay Plaster Saudi Arabia – Comprehensive Guideto Sustainable, Heritage-Rich Finishes
Introduction – What is Clay Plaster in Saudi Arabia?
Clay Plaster is a natural wall finish gaining popularity in Saudi Arabia’s luxury design scene.
Clay plaster (often known by the product name Claystone) is an eco-friendly, mineral-based coating made primarily from natural clay, aggregates, and pigments. In Saudi Arabia, clay plaster finishes are experiencing a revival as architects and homeowners seek sustainable materials that also reflect the region’s heritage. This finish is applied by hand to walls and ceilings, creating a seamless surface with an earthy warmth and texture.
Unlike conventional gypsum or cement plasters, clay plaster is 100% natural and free of VOCs (volatile organic compounds). It allows walls to “breathe,” regulating indoor humidity and contributing to healthier indoor air quality. Clay Plaster in Saudi Arabia offers a modern take on ancient mud plaster techniques, delivering both rustic charm and contemporary elegance. From upscale villas in Riyadh to cultural museums in Madinah, clay plaster is becoming a go-to choice for those who value sustainability and a connection to local tradition. It embodies the desert’s tones and textures, bringing a touch of nature inside while meeting modern performance standards.
Historical Journey – Clay Plaster in Saudi Arabia’s Heritage
The Roots of Clay Plaster in Saudi Architecture
Clay plaster has deep roots in Saudi Arabia’s architectural heritage. For centuries, local builders used mixtures of clay, sand, and straw to plaster the walls of homes, mosques, and forts. In the oases and mudbrick villages of Najd and the Hijaz, earthen plaster was the default finish – applied to thick adobe walls to protect them from erosion and insulate interiors from the harsh climate. These traditional clay plasters gave Saudi buildings their characteristic sandy-brown look that blended harmoniously with the landscape.
In places like Diriyah (the historical capital near Riyadh) and Al-`Ula, one can still see beautifully preserved mudbrick structures where clay plaster served both functional and decorative roles. It kept interiors cool and comfortable long before air conditioning, and its soft, organic appearance defined the vernacular aesthetic. Builders would often imprint tribal patterns or add straw for texture, creating finishes that were unique to each region. This earth-based craftsmanship was not just about practicality – it was an expression of culture and identity.
As Saudi Arabia urbanized in the 20th century, modern cement-based plasters and paints largely replaced clay in new construction. However, the legacy lived on in heritage sites and rural areas. Today, with renewed appreciation for sustainable design, architects are looking back at these roots. Modern Clay Plaster in Saudi Arabia seeks to recapture the beauty and benefits of the old mud plasters, while using improved materials like Claystone for greater durability. In doing so, contemporary projects pay homage to the kingdom’s rich architectural traditions.
Clay Plaster in Salmani Architecture
In recent years, “Salmani Architecture” has emerged as a guiding design philosophy in Riyadh and across Saudi Arabia. Championed by King Salman’s architectural charter, this approach emphasizes preserving cultural heritage, authenticity, and human-centric design — all while embracing modernity. Clay plaster aligns perfectly with Salmani principles. It embodies authenticity by using natural local materials reminiscent of historic Saudi dwellings. It provides a tangible continuity with the past, carrying forward the look and feel of traditional clay walls into new buildings in a refined manner.
Salmani architecture also values sustainability and innovation. Clay plaster addresses sustainability through its low environmental impact and ability to improve indoor climate (naturally cooling spaces and reducing energy use). It contributes to healthier, more livable environments for occupants, an important Salmani value, by being non-toxic and enhancing comfort. In terms of innovation, today’s Claystone plaster is a technological evolution of age-old clay mixtures – it’s formulated for strength and versatility, allowing architects to use an ancient material in cutting-edge designs.
One can see Salmani architecture ideals and clay plaster united in prominent projects. Heritage museums, cultural centers, and even contemporary majlis spaces in Riyadh have started featuring clay or clay-like plasters as wall finishes. Designers deliberately incorporate arches, calligraphic motifs, and earthy surfaces that echo traditional Saudi aesthetics.
Modern cultural buildings in Saudi Arabia often blend traditional forms and materials; here, natural earth-toned plaster complements Salmani arches. In the Prince Mohammed Bin Salman Calligraphy Museum in Madinah, for example, Conmarble applied seamless natural plasters that evoke the feeling of historic mud architecture while meeting modern performance needs. The result is architecture that feels at once timeless and forward-looking – exactly the balance Salmani design strives for.
By reintroducing clay plaster into contemporary projects, Saudi architects honor the kingdom’s architectural lineage. They create spaces that feel distinctly Saudi, with warm, textural finishes that harken back to ancestral building techniques. This historical continuity enriches the ambiance and storytelling of buildings, connecting present-day occupants to generations past. Clay plaster thus is not just a design element, but a cultural bridge between old and new in Saudi Arabia’s built environment.
Composition and Characteristics of Clay Plaster (Claystone)
Clay plaster is fundamentally composed of natural earthen materials, making it an environmentally friendly choice. The primary ingredient is clay – a fine-grained soil rich in minerals – which acts as the binder. Blended into the clay are aggregates like sand, marble dust, or other mineral powders that give the plaster body and strength. Claystone, the proprietary clay plaster blend used by Conmarble, also incorporates advanced additives (all non-toxic) that enhance its performance. These might include natural fibers for reinforcement and special hardeners or binders that improve adhesion and durability without compromising breathability. The result is a mineral plaster that is far tougher than a simple mud plaster, yet retains the earth-derived purity.
Key characteristics of Claystone clay plaster include its breathability and hygroscopic nature. The plaster allows water vapor to diffuse through, which means walls can “breathe.” This helps regulate indoor humidity: the clay will absorb moisture in humid conditions and release it when the air is dry. In a climate like Saudi Arabia’s, this property is invaluable for maintaining comfort – interiors stay cooler and condensation is minimized. Clay plaster surfaces are also thermally massive, meaning they absorb heat slowly and release it slowly, smoothing out daily temperature swings. Rooms finished in clay plaster often feel naturally cooler in the day and cozier at night.
Another defining feature is the seamless, matte texture of clay plaster. It goes on thick (usually between 3mm up to 10mm in layered application), creating a monolithic surface with a gentle, organic tactility. The finish can range from silky smooth to rustic and textured depending on trowel techniques. Claystone in particular can be applied up to about 10mm thick in multiple coats, which is thicker than many decorative plasters – this provides an “artistic depth” to the finish. The plaster’s color comes from the clay itself plus mineral pigments, so it’s an integral color that won’t peel or flake like paint.
Despite its earthy origins, modern clay plaster is quite robust. Claystone has been engineered to be stronger and more crack-resistant than traditional adobe plasters. It adheres well to proper substrates (drywall, block, concrete, etc. when primed) and, once cured, it can handle normal bumps and knocks in a busy household or commercial space. Because it remains somewhat flexible (unlike cement plaster which is very rigid), clay plaster is less prone to hairline cracking due to building movement or thermal expansion. It’s also naturally mold-resistant and anti-bacterial, since dry clay surfaces inhibit microorganism growth. In summary, Claystone clay plaster is a composition of pure clay and minerals, refined with modern science. It delivers the look and feel of raw earth with the resilience required for contemporary use. The characteristics that stand out are: it’s breathable, humidity-regulating, fire-resistant (clay is non-combustible by nature), and free of harmful chemicals. These qualities make it especially suited for the Middle East context – keeping interiors healthy and comfortable while gracefully aging in place. Clay plaster truly marries the earth and engineering, yielding a finish that is as functional as it is beautiful.
Why Choose Cemher Claystone Clay Plaster?
Cemher’s Claystone is not just any clay plaster – it is a premium formulation that elevates ancient material to modern luxury standards. Here are some compelling reasons architects and designers in Saudi Arabia are opting for Cemher Claystone for their projects:
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Authentic Look with Modern Strength: Claystone delivers the natural, earthy aesthetic of traditional clay or mud plaster, but with vastly improved strength and durability. It has been formulated by Cemher (a leading sustainable finishes manufacturer) to be tougher and longer lasting than a basic earth plaster. This means you can achieve an authentic rammed-earth or adobe look in high-end interiors without worrying about the surface crumbling or eroding over time. Claystone’s enhanced composition ensures it adheres firmly and stays intact even in busy commercial settings.
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Rammed Earth Effect Capabilities: One standout feature of Claystone is its ability to recreate the coveted rammed earth effect. Designers love the layered, strata-like look of rammed earth walls (with bands of varying earth tones), which speak to sustainability and craft. With Claystone plaster, craftsmen can generate this effect by applying successive coats in different shades of clay and using special troweling techniques to mimic sedimentary layers. The result is a wall finish nearly indistinguishable from actual rammed earth construction – achieved at a fraction of the cost and without thick load-bearing walls. This capability allows modern projects to infuse a sense of ancient earth construction aesthetically, even on thin partition walls or surface treatments.
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Artistic Depth up to 10mm: Cemher Claystone can be applied up to 1 cm thick, providing significant depth to play with for texture and carving. Most typical plasters or paints are only a few millimeters thick at most, which limits texture creation. But a Claystone wall can have undulating waves, carved patterns, or stone-like relief because of this buildable depth. Artisans can trowel it to create subtle valleys and ridges, or even form geometric designs that have tangible depth. When light hits a Claystone surface, this depth creates rich shadow play and a sense of dimensionality that flat painted walls can never achieve.
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Engraving and Carving Potential: With a thicker application and clay’s sculptability, engraving designs into the plaster becomes possible. While the plaster is still setting (firm but not fully hardened), skilled craftsmen can etch patterns, calligraphy, or motifs into the surface. This is a fantastic feature for projects seeking a bespoke artistic touch – for example, engraving an Arabic calligraphy verse on a feature wall, or custom geometric patterns to mirror mashrabiya screens. Claystone holds the detail of these engravings well, thanks to its fine mineral content. Once sealed, the engraved art is permanent, effectively transforming walls into large-scale artworks. This level of customization is hard to achieve with cement or gypsum plasters.
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Natural and Breathable – Wellness Benefit: Cemher Claystone is made of 100% natural
components, with no synthetic resins or volatile chemicals. For clients concerned about indoor air quality and wellness (a growing priority in high-end residential and hospitality design), Claystone is a perfect choice. It emits zero toxins and even helps purify the air by absorbing humidity and odors. In the hot, dusty climate of Saudi Arabia, having walls that “breathe” and don’t trap heat can make a noticeable difference in comfort. Claystone contributes to a cooler, more humidity-balanced interior, aligning with biophilic design principles and green building standards. -
Compatibility with Salmani Design and Vision 2030: Using Claystone also aligns with broader Saudi goals. Vision 2030 and the Salmani architecture guidelines encourage incorporating heritage motifs and sustainable practices in construction. Cemher Claystone ticks both boxes: it’s eco-friendly and channels the look of traditional Saudi materials. Developers aiming for LEED or regional green building certifications will find that Claystone can contribute to material credits (for low-emitting materials, recycled content, etc.). Furthermore, in luxury developments where storytelling and sense of place are important, marketing a finish like Claystone allows one to say: “Our project embraces local heritage and sustainability right down to its wall finishes.” This can be a unique selling point.
In essence, choosing Cemher Claystone clay plaster means you don’t have to compromise between tradition and performance. You get the earthy beauty, texture, and cultural resonance of clay, coupled with the reliability of a high-tech product. It’s a finish that suits a palace in Riyadh as much as a boutique resort in AlUla. With Claystone, Conmarble’s team can deliver bespoke, artisanal walls that are also resistant to wear, easy to maintain, and built to last. It represents a smart, future-forward adoption of one of humanity’s oldest construction materials.
Applications of Clay Plaster (Claystone) in Saudi Arabia
Clay plaster is incredibly versatile, lending itself to a variety of applications in modern Saudi Arabian architecture. Whether used as a subtle backdrop or a statement finish, it enhances many types of spaces. Here are some key application areas for Claystone clay plaster in Saudi projects:
One of the most common uses of Claystone is on interior walls and ceilings as a continuous finish. In villas, majlis (sitting rooms), hotel lobbies, and offices, clay plaster can cover expansive wall surfaces to create a tranquil, monolithic look. Because it is hand-troweled, the finish on each wall is unique – slight tonal and textural variations give the surface life and character. Designers often choose clay plaster for feature walls where they want a natural focal point without using artificial cladding or busy patterns.
For ceilings, clay plaster offers a way to carry the seamless look overhead, eliminating the need for paint or false ceiling panels. This is especially popular in minimalist and modern interiors, where a clean envelope of consistent material is desired. A Claystone ceiling has a soft matte glow that can make a space feel more intimate and calm, almost like being inside a sculpted adobe dome. It also avoids the issues of paint peeling from ceiling humidity or stucco texture falling – Claystone adheres strongly and lasts for decades.
Importantly for Saudi homes, which often have large, open-plan layouts, using clay plaster on all walls helps control acoustics by dampening echoes (the textured surface breaks up sound). It also avoids the unsightly cracking that can happen on painted gypsum partitions in air-conditioned environments. Many high-end residences in Riyadh and Jeddah now feature living areas or bedrooms wrapped in a neutral-toned clay plaster, giving an understated luxury feel that pairs well with both modern furniture and traditional decor.
Clay plaster creates a spa-like serenity in luxury interiors – walls finished with natural plaster and curved niches at a boutique show a seamless, calming design. While one might think clay plaster and water don’t mix, Claystone can indeed be used in bathrooms, powder rooms, and spa areas with the proper approach. The key is sealing and placement. For example, clay plaster is a fantastic choice for bathroom walls outside the direct shower or splash zones. In high-end bathrooms, it can replace tiles or marble on dry zone walls to add a warm, organic ambiance reminiscent of a Moroccan hammam or desert spa. The plaster’s natural humidity regulation helps reduce mirror fog and mold growth by buffering moisture in the air.
When used in home spas, meditation rooms, or wellness centers, clay plaster really shines. Its tactile texture and earth-derived nature create a zen-like environment. Picture a sauna lounge or massage room with softly curved clay plaster walls – the space immediately feels more connected to nature and relaxation. The material is also kind to acoustics, muffling noises for a more serene experience.
If applying Claystone in areas that will get occasional splashes (like near a tub or sink backsplash), a breathable sealer can be applied on top of the plaster to make it water-resistant. Conmarble typically uses a specialized seal coat that doesn’t clog the pores of the plaster but creates a protective layer. This allows the clay plaster to handle humid conditions and gentle cleaning. However, for fully wet areas like inside showers or hammams, a lime-based tadelakt or microcement (also offered by Conmarble) might be chosen instead for complete waterproofing. Still, using clay plaster on the ceiling of a shower or upper walls above the wet zone is possible and can transform the feel of the space. Clients love the spa aesthetic that clay plaster brings – it’s a departure from cold ceramic tiles, yielding a bathroom that feels like a natural retreat.
Clay plaster is an ideal finish for cultural, religious, or heritage-themed spaces where authenticity is paramount. In museums, galleries, and cultural centers, it provides a historically appropriate backdrop that doesn’t distract from exhibits or art. For instance, in galleries showcasing Saudi historical artifacts or art, clay plaster walls can evoke the atmosphere of old Arabian structures, thereby enhancing the storytelling. The Prince Mohammed Bin Salman Calligraphy Museum project in Madinah is a prime example: although a modern building, it utilized natural plaster finishes (by Conmarble) to echo the traditional materials of Islamic architecture. Visitors there may not consciously realize it, but the earthen tone of the walls and their smooth, hand-crafted texture create a subliminal link to centuries of Islamic art done on parchment and adobe.
Houses of worship or religious schools can also benefit from clay plaster. In quiet prayer halls or mosque interiors (aside from the prayer wall which might be elaborately decorated), clay plaster can offer a humble, peaceful surface that complements worship. Its non-reflective finish is gentle on the eyes, and its ability to be sculpted means Quranic verses or geometric arabesque patterns could even be carved into panels of the plaster, integrating art and wall in one medium.
Historic preservation projects throughout Saudi Arabia increasingly turn to clay plaster when restoring old buildings or constructing new ones in heritage districts. It’s often a requirement to use authentic materialsin places like Diriyah or Jeddah’s old Al-Balad area. Claystone plaster provides the look of age-old mud plaster but with better longevity, meaning less frequent maintenance for authorities.
Clay plaster can mimic rammed-earth construction’s layered look, seen here with rich earth tones – perfect for bringing heritage style into new projects. By layering colors, a new wall finished today can be made to appear as if it has the stratified character of a wall built up over generations. This is a boon for creating immersive historical environments such as replicas of traditional souks, forts, or farmhouses for tourism purposes.
Overall, in cultural and heritage contexts, clay plaster reinforces the sense of place. It is a material that belongs to the land, and so it grounds buildings in their Saudi context. When visitors step into a space with clay plastered surfaces, they often remark on feeling transported to “olden times” or feeling a deep connection with local culture – that’s the intangible power of this natural finish in heritage-rich spaces.
One of the most exciting aspects of clay plaster is how it enables custom, artistic architectural finishes that set spaces apart. Because it is applied by skilled artisans, not by machine, the design possibilities go far beyond what standard paint or wallpaper can do. Architects in Saudi Arabia are leveraging Claystone to create signature wall finishes tailored to each project’s theme or client’s personality.
For example, in upscale retail boutiques and hotels, we’ve seen clay plaster used to form sculptural wall surfaces. Artisans can integrate curves, niches, and reliefs directly into the plaster. In one Riyadh boutique, Conmarble crafted whimsical built-in display niches with smooth rounded edges, then coated everything seamlessly in clay plaster – making the wall itself a piece of art that showcases products in a soft, inviting way. In high-end restaurants or majlis halls, designers may opt for a feature wall with a unique texture : maybe a swirling pattern that catches the evening light, or a carved motif inspired by local geometric art. Clay plaster can take on these custom textures through various trowel techniques (for instance, creating a suede-like softness, a dragged linear pattern, or even a cratered fossil-like effect).
Clients looking for one-of-a-kind statement walls are particularly drawn to the engraving and stencil work possible with Claystone. If a luxury villa owner wants a family crest, an Arabic calligraphic poem, or any bespoke pattern on a wall, artisans can apply a thick clay plaster coat, then carefully carve out the design by hand. This creates a subtle, tone-on-tone artwork that is part of the wall finish itself (as opposed to hanging art). For hospitality projects like theme resorts or cultural hotels, this technique can be used to imbue spaces
with narrative – imagine a resort in AlUla having lobby walls engraved with Nabatean-inspired motifs or a desert scene in low relief; clay plaster makes it achievable.
The flexibility of clay plaster also extends to blending it with other finishes for dramatic effect. Designers sometimes combine clay plaster with sections of microcement or polished lime plaster to play matte against shine, or rough against smooth. For instance, a wall might have large fields of earthy clay plaster interrupted by a stripe of glossy polished plaster or a panel of decorative tile, creating a rich tapestry of texture. Claystone’s neutral tones often complement stone, wood, and metal elements beautifully, so it’s a favorite for feature walls that incorporate inset panels or materials.
Benefits of Using Clay Plaster in Saudi Arabian Architecture
Choosing clay plaster (Claystone) as a finish in Saudi projects offers numerous benefits that cater to both practical needs and design aspirations. Below are some of the top advantages:
Clay plaster is an eco-conscious choice, made from abundant natural materials with minimal processing. Unlike cement plaster or acrylic paint, it requires very little energy to produce and emits negligible CO₂. In fact, the lime or clay content can even absorb CO₂ over time. Using clay plaster aligns with Saudi Arabia’s Vision 2030 goals for sustainable development and can contribute to green building certifications (LEED, Estidama, etc.). It’s also completely biodegradable at end of life, ensuring no lasting environmental impact.
In Saudi Arabia, where people spend a lot of time in air-conditioned interiors, indoor air quality is a big concern. Clay plaster is VOC-free and does not off-gas any harmful chemicals, unlike some paints or synthetic wall coverings. Its breathability prevents mold by not trapping moisture in walls. Additionally, clay’s natural ability to regulate humidity (absorbing excess moisture and releasing it when air is dry) creates a healthier humidity balance, which can reduce allergens and respiratory irritations. Many homeowners report that rooms with clay plaster “feel” fresher and more comfortable, as the walls effectively act as a passive air filter and humidifier.
Clay plaster contributes to passive cooling – a significant benefit in the hot Saudi climate. Its thermal mass properties allow it to absorb heat during the day, reducing indoor temperature spikes, and then release that heat slowly when temperatures drop at night. This moderating effect can lower the reliance on air conditioning during transitional seasons and improves comfort even with AC by reducing hot spots. The material is also naturally insulating to a degree; the thick plaster layer adds to the wall assembly’s resistance to heat transfer. Over time, using clay plaster can slightly reduce energy bills and certainly complements other passive design strategies (like proper shading and ventilation).
From a design perspective, the beauty of clay plaster is timeless. Its earthy colors and soft matte finish never go out of style and blend with both traditional and contemporary decor. Whether you’re designing a modern minimalist penthouse in Khobar or a traditional guesthouse in a heritage village, clay plaster can be finished to suit the context. It comes in a wide range of natural hues – sands, ochres, terracottas, as well as custom tints like cool greys or off-whites – giving architects a broad palette. The texture can be finely polished or left rough and rustic. This versatility means clay plaster can adapt to the desired ambiance: cozy and rustic, or sleek and elegant. And as an artisanal finish, it actually tends to become more charming with age, developing a patina rather than deteriorating.
Modern clay plasters like Claystone are built to last. Once applied and cured, they form a hard surface that resists everyday wear. Unlike drywall (gypsum) surfaces that candent easily or paint that scuffs, a clay plaster wall can handle bumps without significant damage –minor marks often blend into the variegated texture. The flexibility of clay plaster also means it is less likely to crack with building movements or temperature changes. Many cement plastered walls in Saudi develop hairline cracks over time due to the heat – clay plaster is far more resilient in this regard. With basic care, a clay plaster surface can last for decades without needing a recoat, making it cost-effective long-term. And if a section does get damaged, it can be patch-repaired seamlessly by a professional, thanks to the forgiving nature of clay (whereas patching paint often leaves visible flash or color mismatch).
Using clay plaster automatically infuses a space with a sense of heritage and authenticity. In Saudi Arabian architecture, which increasingly aims to reflect local culture, this is a huge benefit. Walls that look and feel like those of historic desert structures lend credibility and depth to a design narrative. For hotels, museums, or even private homes, having clay plaster can be a point of pride and differentiation – it’s something that connects the space to the land and traditions. It offers a tactile experience; guests often run their fingers on the wall and feel that cool, earthen touch, creating a memorable interaction with the building. In a world where many surfaces are industrially produced and uniform, the hand-crafted imperfection of clay plaster stands out as something soulful and human.
In summary, clay plaster in Saudi architecture is not just about achieving a pretty finish (though it certainly does that). It’s about creating healthy, efficient, and meaningful spaces. The material addresses modern concerns like sustainability and wellness, while also delivering on luxury and aesthetic appeal. It is a rare example of a building material that hits the triple bottom line – good for the planet, good for people, and good for design.
Clay Plaster Colors, Textures, and Custom Finishes
One of the joys of working with clay plaster is the immense range of colors and textures that can beachieved, allowing for highly customized finishes:
Clay plaster typically showcases the hues of the earth. Standard Claystone comes in shades that reflect natural clays – think warm beiges, sandy taupes, soft greys, and rich terracottas. These colors have an inherent softness due to the mineral pigments used; they tend to be calming and easy on the eyes. In Saudi Arabia, designers often choose neutral, earthy tones that echo the desert environment or traditional mud houses. However, the palette is not limited to browns. By mixing in oxides and other natural pigments, Claystone can be produced in off-whites (for a clean, modern gallery look), charcoal greys, olive greens, or even more vibrant tones like ochre yellows and muted blues. The key is that all colors have a subtle, matte quality – don’t expect the brash brightness of synthetic paint, but rather a nuanced, organic color. This works beautifully in elegant interiors, as the colors harmonize rather than dominate. Additionally, because the color is integral to the plaster (mixed into it), it has a depth and variegation that painted surfaces lack. Slight mottling or variations in shade occur as the plaster dries, giving the wall a natural variegated look, much like stone or earth.
Clay plaster’s texture can be tailored from silky smooth to ruggedly coarse. If a polished, contemporary look is desired, the plaster can be troweled tightly and even burnished lightly, yielding a surface akin to suede or smooth cement with just a hint of movement. On the other end, if one wants a rustic, old-world feel, the plaster can be left with open trowel marks, or even mixed with a bit of straw or larger aggregate to accentuate roughness. There’s also the option of a “rammed earth” texture, where the plaster is applied in layers with slightly different tones to mimic the stratified layers of compacted earth. This can be left un-sanded for a raw look, or sanded back to reveal the lines more clearly. Some artisans create a dragged texture (with a trowel or brush) for a lined effect, or a pitted texture by sponging the surface as it sets, creating tiny dimples for an antiqued look. One popular finish in trendy Saudi cafes and retail spaces is a “cloudy” or variegated texture: the plaster is applied in a way that some areas are compressed more than others, resulting in light and dark patches like watercolor on the wall – it adds depth and a moody character. Another is the stone-look finish, whereafter application the plaster is lightly polished and then perhaps waxed, making it resemble honed limestone or travertine. The ability to absorb and reflect light differently across its surface means a clay plaster wall can have a dynamic appearance throughout the day – highlights and shadows playing off its undulations.
Clay plaster truly shines when it comes to custom artistic finishes. Because artisans work it by hand, they can introduce patterns or art in ways impossible for flat paint. Stencil patterns can be done by pressing carved stamps or templates into the plaster while it’s soft, leaving behind impressions. This might be used to create a border motif around a room or to imitate the look of ancient carved plaster friezes. Color washing is another technique – once a base clay plaster is dry, a thin wash of clay in another color can be applied and sponged off in places to give a two-tone effect (for example, a dark brown wash over a light beige base, which stays in the recesses and boosts contrast).
Engraving, as mentioned earlier, is a standout custom option. Artisans can actually draw on a wall and chisel along the lines for an engraved look. Imagine hotel suite walls engraved with flowing Arabic calligraphy – a feature that feels luxurious and deeply cultural. Because Claystone is applied thickly, these engravings have substance and can be a few millimeters deep without exposing the substrate beneath.
Another custom possibility is embedding materials into the plaster. Small pieces of decorative stone, tile, or wood could be inlaid flush with the clay plaster. For instance, one could create a mosaic effect or frame a niche with a line of wooden beads pressed into the clay, marrying it with other craft elements. Finally, finishes can be protected or enhanced with natural sealants that slightly alter their look. A wax or soap sealer can be buffed on to give a gentle satin sheen and a bit of darkening of the color, which some clients prefer as it enriches the tone (though it does reduce breathability a touch). Or a completely matte sealer keeps the dry look but adds washability. These topcoats are optional and themselves can be selectively applied (you could wax just the lower half of a wall to make it catch light differently from the upper half, for a unique visual effect).
In essence, clay plaster is like an artist’s medium for walls. Colors, textures, and effects can be endlessly customized, ensuring that no two Claystone installations are exactly alike. This is a huge draw for designers in the Saudi and GCC luxury market who want their projects to stand out with signature details. With clay plaster, the walls become a canvas – whether you want them to subtly support the decor or become a masterpiece in their own right.
Step-by-Step Clay Plaster Installation Process (Claystone)
Installing Claystone clay plaster is a specialized process best handled by trained applicators. It involvesmultiple stages to ensure a beautiful and long-lasting finish. Below is an overview of the typical step-by-step installation:
The wall or ceiling surface (substrate) must be properly prepared. This means it should be clean, free of dust or grease, and reasonably flat. Any cracks or holes are filled. Depending on the substrate material – be it concrete, cement render, gypsum board, or brick –a suitable primer is applied. Conmarble uses a primer coat (often a mineral-based grip primer) thathelps the clay plaster adhere strongly and evenly. This primer may contain a fine sand texture to give“tooth” for the plaster to latch onto. Good preparation at this stage ensures the plaster won’t delaminate or crack later.
Claystone typically comes as a powder that needs to be mixed with a specific amount of liquid (usually clean water, sometimes with an admixture). The applicators will measure and mix in batches, often using a drill mixer, until the plaster achieves a smooth, creamy consistency with no lumps. It’s important to let the mix sit (slake) for several minutes and then remix, as this allows the clay and minerals to fully absorb water. The mixture has a limited pot life (around 1hour), so only as much plaster as can be applied in that time is mixed to avoid waste.
The first coat of clay plaster is applied to the primed surface using a trowel. This coat’s purpose is to even out the background and establish a solid layer of material. The plasterer spreads the Claystone in an even layer, typically around 3–5 mm thick. It’s important to press firmly so the plaster keys into the substrate and primer. This coat may not look pretty – there could be trowel lines or unevenness, which is fine at this stage. Once the entire area is covered, the base coat is left to dry thoroughly. In Saudi climate, drying might happen within 12-24hours, but it’s important that it’s fully set. After drying, the applicator might lightly sand or scrape off any high spots or drips to prepare for the next coat.
After the base coat, a second coat of Claystone is applied to achieve the final thickness and finish. Before starting, sometimes the base is lightly misted with water to ensure good bonding (especially in dry environments where the base coat could otherwise suck moisture from the new layer too quickly). The plasterer then trowels on the second coat, which could be another ~3 mm or more depending on desired texture. This is the coat where artistry comes in: the applicator will use specific techniques to create the wanted finish (smooth, textured, layered, etc.).They might use different trowel movements or even different tools (sponges, spatulas) to shape the surface. If a rammed earth look is desired, for example, they might apply the second coat in sections of slightly different pigmented batches to form stripes. If an engraved pattern is planned, this coat would be made thick enough in those areas to accommodate the carving.
While the second coat is setting (it goes from wet shiny to a more matte damp as it firms up), the applicator will often “close” or compress the plaster with a clean trowel or plastic float. This involves gently pressing and smoothing the surface repeatedly. This action compacts the clay particles and can produce a smoother finish with subtle marbling. It also helps make the surface more durable by increasing density. At this stage, edges and corners are refined, and any intentional texture is finalized. If a very smooth finish is required, the plaster might even go over it with a fine burnishing tool or trowel at a near-polish stage when it’s almost dry. For rough textures, they may do minimal compression to preserve the roughness.
If custom details like engraving are part of the design, these are done when the plaster has set enough to hold shape but not fully hardened (often within a few hours of application, timing is tricky and based on touch). Artisans will trace the design and use carving tools to etch into the plaster. This must be done carefully to avoid chipping. Once complete, any loose bits are brushed off and the carved lines can be smoothed with a small damp sponge if needed.
After application, clay plaster needs to cure. It’s basically dry when the color has lightened to its final shade and it no longer feels cool to the touch. Even after it appears dry, the plaster is still gaining strength over several days. It’s best to protect the area from impacts or heavy dust for at least 2-3 days. Good ventilation helps the drying; in humid conditions, dehumidifiers or AC can assist. Since Saudi climate is dry, one actually has to be careful the plaster doesn’t dry too fast (which could cause cracking). Sometimes installers will gently mist the surface or keep the air a bit humid for a day to allow slower curing.
Claystone plaster can be left unsealed for maximum breathability and a purely natural look. However, in many cases a sealer is applied to add durability. There are two main types used: a penetrating silicate or soap sealer that maintains a matte look, or a wax/polymer sealer that can impart a slight sheen. Conmarble often uses a proprietary breathable sealer in two coats. The first sealer coat is applied with a sponge or sprayer, allowed to soak in and dry. It essentially fortifies the plaster just below the surface, making it less prone to dusting or staining. Then a second coat of sealer or wax is applied and buffed if needed. This step makes the surface wipeable and more resistant to finger marks or water splashes. In low-traffic, dry areas, sometimes no sealer is used at all to keep the finish 100% natural; it depends on the client’s preference and use of space.
Once everything is dry and cured, the applicators and project managers will inspect the plastered area. Any tiny imperfections can be touched up – for instance, if a hairline crack appeared (maybe due to too-rapid drying), it can be filled with a bit of clay mix. Color consistency is checked (clay plaster can have some variation, but glaring differences would be addressed by a thin wash or re-trowel in that spot). Edges at trim or junctions are cleaned up for crispness. The finished product should have the desired texture and color, and a uniform overall appearance while still having the charming variations inherent to hand application.
The space is now ready for use! The newly clay-plastered walls will continue to harden over the first few weeks. It’s generally advised not to aggressively clean or wet-wipe them in the first month. But after that, they settle into their long-term state and require only minimal care (as described in the next section).
By following this multi-step process, Conmarble ensures that each clay plaster installation in Saudi Arabia is of the highest quality – both visually and structurally. It’s a labor-intensive craft, but the outcome is a bespoke finish that transforms the look and feel of any space.
Clay plaster is made primarily from natural clay and sand, without cement or synthetic resins found in regular plasters or stuccos. This makes it more breathable and eco-friendly. Unlike cement-based stucco, clay plaster remains somewhat flexible and is less prone to cracking from building movement. It also has a distinct matte, earthy appearance versus the harder look of cement plaster. Essentially, clay plaster is a “living” finish – it regulates humidity and can be reworked – whereas regular plaster is more static and purely structural.
Yes, clay plaster is very well-suited to Saudi climate conditions. In hot, dry weather, its thermal mass helpskeep interiors cooler by absorbing heat. In humid coastal areas or seasons, its hygroscopic nature absorbsexcess moisture, which can help prevent that damp feeling indoors. Traditional Arabian homes used mud/clay for precisely these benefits. The key is that in very hot/dry air, installers might take precautions to slowdrying (to prevent cracks), but once cured, the plaster performs excellently. It’s also stable under hightemperatures and won’t degrade in heat the way some paints might. However, for exterior use in areas withrain, clay plaster would need protection (e.g., good overhangs or a stabilizer) since it can erode with directwater exposure. So, it’s primarily used indoors or on protected exteriors in KSA.
Claystone can be used in kitchens and bathrooms with certain considerations. On kitchen walls away from the stove or sink (like in a breakfast nook or an accent wall), clay plaster adds warmth and is fine as long as it’s sealed to resist grease or the occasional splash. For areas right behind a cooktop or sink, it’s usually better to use a more wipeable material (tile, glass, or a sealed microcement) or be prepared to maintain the sealer on the plaster regularly. In bathrooms, clay plaster is great for powder rooms or techniques bathroom walls/ceilings that don’t get direct water spray. For example, it’s lovely above wainscoting or on the ceiling to mitigate humidity. If used in a full bath, we seal it with a water-repellent finish so that it can handle steam and minor splashes. It wouldn’t be recommended inside a shower or as a bathtub surround unless you use a tadelakt technique or heavy-duty sealer, in which case it’s not truly “exposed clay” anymore.
In summary: yes, you can use it in these rooms, but keep it to low-splash zones and use sealers to make maintenance easy.
Sealing clay plaster is optional and depends on the use case. If you leave it unsealed, you retain maximum breathability and the most natural matte look. Unsealed plaster will absorb and release moisture freely – which is good for air quality – but it also means it can absorb oils, stains or get dusty if rubbed. In low-traffic areas (like a ceiling or a feature wall that isn’t touched often), unsealed is perfectly fine and many purists prefer the authenticity. However, in areas where people might lean or touch (hallways, near light switches) or places prone to splashes (near a sink), an invisible breathable sealer is often applied. The sealer usually doesn’t change the appearance much; it just fills the pores enough to make the surface wipeable and less likely to stain. If you don’t seal those high-contact areas, the plaster can develop a patina– which some like, but others might see as dirt or grease spots. One can always seal later if you find an unsealed wall is getting grime that can’t be dusted off. So, sealing is a preventative measure for longevity and cleanliness, but not a strict requirement for the plaster to function.
Claystone comes in a range of standard colors that are inspired by nature – from off-white and light sand to medium taupe, warm grey, and deeper terracotta. These cover many design needs. However, yes, it can also be custom colored. Since pigments can be mixed into the clay, if you have a specific color in mind (for example, a particular beige to match flooring, or a soft olive green for a feature wall), Conmarble can create sample mixes to achieve that hue. We use mineral pigments and oxides to tint the plaster. It’s worth noting that clay plaster colors are usually gentle and earthy; very bright or saturated colors are harder to achieve naturally (for instance, a neon or a true primary red isn’t feasible without synthetic pigments, which we avoid). But for most sophisticated palettes – think muted blues, sage greens, charcoal greys – custom coloring is quite doable. Keep in mind that there is slight color variation inherent in the hand application, which actually makes the wall more lively. We always provide a sample panel for approval if custom coloring, to ensure you love the result.
When properly installed and cured, Claystone plaster forms a solid crust and should not dust or powder. Early clay paints or plasters sometimes had that reputation (you’d brush against and get white dust on clothing) but that’s not the case with modern formulations. The key is in the mix and compression –Conmarble makes sure the plaster is adequately compacted and if needed, a stabilizer or sealer is used. An unsealed clay plaster might have the very slightest chalky feel if you rub it hard (that’s just the nature of clay), but you shouldn’t see visible dust coming off. Once it’s sealed or waxed, even that goes away and it feels just like a normal wall (with a smoother, cooler touch). If down the line a wall is repeatedly scuffed (like by moving furniture against it often), you might see a bit of powder where the abrasion occurred, but that would be true for painted drywall too (you’d get paint dust). Under normal use, clay plaster walls remain intact and dust-free.
Clay plaster is a hand-crafted, premium finish, so it does cost more than standard paint or gypsum plaster work. The cost includes the high-quality material itself and the skilled labor required. In Saudi Arabia, clay plaster (Claystone) installation is generally comparable in cost to other artisan finishes like Venetian plaster or polished tadelakt. It will be more expensive than a simple cement plaster + paintjob, perhaps several times more per square meter. However, it’s often seen as an investment in the character of the space. Because it combines finish and color in one, you’re effectively getting a wall finish that doesn’t need additional painting or treatment.
In terms of value, consider that clay plaster can last much longer than paint without needing refresh, and it elevates property aesthetics (potentially increasing property value or desirability). Many clients choose to use clay plaster strategically – not necessarily on every wall, but on key feature walls or select rooms to manage cost while still reaping the benefits. Conmarble can provide quotes and often we find solutions to meet budget goals, like perhaps a two-coat application instead of three if ultra-high-end texture isn’t needed, etc. Ultimately, while it is an upfront premium, the sensory and experiential richness it adds can far outweigh the costs for those seeking a unique, luxurious environment.
Yes, in many cases Claystone can be applied over existing surfaces, which is great for renovations. The existing paint or plaster, however, needs to be well-adhered (no peeling or flaking). Typically, we would sand or roughen a painted surface to ensure the primer can grip it. Then we apply a bonding primer. If the existing wall has a glossy paint, it definitely needs thorough sanding or a special primer so the clay plaster will stick. Also, the color of the underlying paint doesn’t matter much since clay plaster layers are opaque, but extremely dark bases might be primed with a lighter color just to be safe. If the existing finish is something like wallpaper, that would need to be removed entirely. If it’s old cement plaster or drywall, that’s fine – any cracks should be repaired first. Once prepped, a coat of Claystone base can go on. In summary, you usually don’t have to demolish old walls to do clay plaster; it can skim-coat over after proper prep. This makes it a convenient option for retrofitting homes or updating the look of a room without complete reconstruction.
FAQ
Maintenance and Care of Clay Plaster Surfaces
One of the appealing aspects of clay plaster is that it’s relatively low-maintenance, especially given itsnatural makeup. However, to keep Claystone surfaces looking their best for years, some simple carepractices are recommended:
Day-to-day cleaning of clay plaster walls is straightforward. Since the surface is matte and slightly porous, it doesn’t show dust easily. Still, an occasional dusting is wise. Use a soft dry cloth, feather duster, or the brush attachment of a vacuum cleaner to gently remove any surface dust. Do this on a routine basis (perhaps monthly or as needed). Avoid using excessive water or wet scrubbing for routine cleaning, because unsealed clay can absorb water. For walls that have a sealer, a lightly damp cloth can be used to wipe off smudges – but make sure the cloth is just barely moist, not wet.
If there is a fingerprint, scuff, or minor stain on the plaster, first try a dry approach: a pencil eraser or a dry microfiber cloth can sometimes lift marks without altering the plaster. If that doesn’t work and the plaster is sealed, you can use a damp sponge with a very mild soap (like a natural castile soap or neutral pH cleaner) to gently dab the area. Do not soak the plaster; just softly clean the spot and immediately use a dry cloth to blot any excess moisture. For unsealed plaster, it’s trickier – adding water might darken that spot temporarily. In such cases, it’s often best to leave it be (often minor marks blend into the plaster’s patina over time) or consult a professional for advice on touch-up.
Never use harsh chemical cleaners, bleach, or strong solvents on clay plaster. These can damage the surface, strip pigments, or cause discoloration. Fortunately, due to clay plaster’s anti-static nature (it doesn’t build up static that attracts dust) and its alkaline properties, it generally doesn’t harbor dirt or stains easily, so harsh cleaners shouldn’t be necessary.
Clay plaster loves to balance humidity, but too much direct water is an enemy. So, if a clay plaster wall accidentally gets splashed (say a freak spill or a plumbing spray), wipe it off as soon as possible with a dry cloth. In bathrooms where clay plaster is used, ensure that there is good ventilation to let surfaces dry out after steamy showers. If the plaster was properly sealed in these areas, it should handle occasional moisture fine. In kitchens, avoid direct contact with oils or colored spices on the plaster (for example, if used as a backsplash, which ideally should be sealed or avoided). If oil splatters, clean it promptly; clay can absorb oils which might leave a dark spot.
Over time, if the clay plaster surface gets a small chip or scratch, the good news is it can often be repaired invisibly by a professional. Keep a small bag of leftover Claystone powder from your project if possible – this can be used for color-matched repairs. A craftsperson can mix a bit and carefully fill in any chip, then feather it out to blend with the surrounding texture. For very fine hairline cracks (which are uncommon if installed well, but could occur if the building shifts or after many years), sometimes just a mist of water and a light reburnishing with a trowel can close them, owing to clay’s re-workable nature. Larger cracks might be filled similarly to chips. It’s generally not something a homeowner would do themselves unless experienced, as blending the repair into the existing finish takes skill.
If your clay plaster was sealed and after a few years you notice the effect wearing off(maybe the wall becomes more absorbent or slight color differences in high-touch areas), you can have are application of the sealer. This is usually as simple as a single coat applied with a sponge over the cleaned surface. In a residential setting, you might do this every 5-10 years or even less frequently; in a commercial high-traffic space, maybe a bit sooner. Re-sealing will refresh the plaster’s protective layer and can sometimes make the color “pop” slightly again as when new.
While Claystone is durable, it’s wise to avoid dragging furniture or sharp objects directly against plastered walls to prevent gouges. Use door stoppers so that door handles don’t slam into plaster. If moving artwork hung on the wall, be careful not to scratch the surface with hanging hardware. Basically, treat it as you would any high-end wall finish. The benefit is, unlike painted drywall which might dent or tear, clay plaster tends to just get a scuff that can often be brushed out or left as part of the character if it’s minor.
Expect that your clay plaster will age gracefully. Subtle changes in depth of color or the development of a slight patina in areas (a soft sheen where many hands might have touched over time) can happen and are often considered part of the appeal. It’s similar to how leather or natural wood develop character — clay plaster, being natural, does too. This aging does not compromise the performance; in fact, clay plasters can last generations if cared for. If one ever decides to change the finish, the clay plaster doesn’t have to be entirely removed in many cases – it can serve as a great substrate for a new finish (even another skim of new clay plaster of a different color).
If you have a large area of clay plaster and you’re unsure about how to handle a cleaning or repair issue, it’s perfectly fine to reach out to a professional (like Conmarble) for guidance. They can advise whether a problem can be remedied with simple care or if a touch-up service is warranted. Because clay plaster is still a relatively artisanal finish, most clients find that a little knowledge from the installer goes a long way in maintaining it.
In essence, maintenance of clay plaster is about gentle care and appreciation of the material’s nature. By following these guidelines, your clay plaster surfaces in Saudi’s climate will remain as breathtaking as the day they were finished, with very little intervention needed.
Why Choose Conmarble for Clay Plaster Projects in Saudi Arabia
When embarking on a clay plaster project in Saudi Arabia, the choice of installer is just as critical as the material itself. Conmarble has emerged as the premier specialist for Claystone and other sustainable finishes in the region. Here’s why Conmarble stands out as the partner of choice for clay plaster projects:
Conmarble’s team consists of trained artisans who specialize in earth-based plasters. Applying clay plaster is an art form – and Conmarble has invested in any developing local craftsmanship to the highest level. Our applicators understand the nuances of working with Claystone under Saudi conditions (from Riyadh’s dry heat to the humidity of the Gulf Coast) and know how to achieve the desired finish consistently. We follow international best practices as outlined by Cemher (the developer of Claystone) and have completed advanced training directly with the material. This expertise means your walls are in the hands of people who treat each project as a masterpiece in the making.
Conmarble has a proven track record, having been trusted for iconic projects across the kingdom. We brought the vision of seamless clay and lime plasters to life in the Prince Mohammed Bin Salman Calligraphy Museum – a landmark cultural institution – ensuring its interiors reflect heritage and elegance. Other notable collaborations include upscale resorts, cultural centers, and luxury villas where our finishes were central to the design narrative. Choosing Conmarble means aligning with a firm that has delivered under high-profile, demanding settings. We understand the stakes of prestigious projects and have consistently met client expectations for quality and authenticity.
While clay plaster might be your focus, Conmarble offers a comprehensive range of natural and sustainable finishes (from microcement floors to lime plaster sand rammed earth structures). This means we can provide holistic solutions for your project’s surfaces. For instance, if you want clay plaster walls but a complementary polished plaster feature or a matching microcement floor, we have the capability to execute all seamlessly. This one-stop expertise ensures better coherence in design and less hassle coordinating multiple contractors. It also means we can advise on where clay plaster will work best and where perhaps another finish could be more suitable, always aiming to deliver the best end result for the client.
Conmarble works with Cemher’s Claystone under official technical guidance, ensuring the material used on your site is genuine and prepared correctly. We maintain strict quality control – from substrate inspection before we start (ensuring your walls are ready for clay plaster) to the final curing process. Our team will mock up sample boards for client approval, so you get exactly the color/texture you envision. Additionally, Conmarble provides documentation and aftercare instructions at project handover, and we remain available for any support down the line. This level of professionalism and technical backing sets us apart from generic contractors.
Being based in Saudi Arabia (with projects throughout the GCC),Conmarble is deeply familiar with local architectural styles, client preferences, and site logistics. We understand the importance of Salmani architectural guidelines and cultural sensitivities – for example, we know how crucial it is to match the historic look in a restoration in Diriyah, or the desire for opulence yet authenticity in a private palace. At the same time, we operate with global standards in mind. Our materials are imported and certified, our staff often include international artisans collaborating with local talent, and we keep up with the latest trends and techniques worldwide. This fusion of local insight and global quality means you get the best of both worlds: a finish that is contextually appropriate and world-class in execution.
Conmarble prides itself on a client-centric approach. We collaborate closely with architects, interior designers, and owners from concept to completion. In the early stage, we offer samples and consultancy on finish options. During application, we can adjust or techniques in real-time if the client desires a bit more texture here or a tad lighter tone there – our process is flexible enough to accommodate creative input until the plaster sets. We also understand project timelines and coordinate with other trades efficiently to avoid delays. The glowing testimonials from past clients and repeat commissions are a testament to our commitment to satisfaction. Many homeowners and developers come back to us for new projects after seeing the transformative work we did for them or their associates.
Our relationship doesn’t end when the plaster is dry. Conmarble provides after-service advice and maintenance support. If years later, you want to refresh or alter the finish, we are there to do it, with full knowledge of the original application. We see our clay plaster installations as part of our legacy – so we care that they continue to perform and impress. This dedication to the longevity of our work means that by choosing Conmarble, you’re assured a partner for the long run, not just a vendor for a one-off job.
In choosing Conmarble for your clay plaster needs, you are entrusting your project to a company that is passionate about earth-friendly finishes and has the track record to prove its prowess. We don’t just apply plaster; we sculpt environments that tell a story and stand the test of time. Your vision combined with our mastery can bring truly special spaces to life – imbued with the spirit of sustainability and the soul of Saudi heritage.
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