
When it comes to constructing or renovating walls in your home, you will likely encounter two main options: wet wall and drywall. Both of these materials have unique features and advantages that make them suitable for different applications. In this article, we will explore the differences between wet wall and drywall, and help you make an informed decision about which one to use in your next project.
Wet wall and drywall are two different types of wall construction materials that have different properties and applications. Wet wall, also known as cement board, is made of cement and reinforced with fibreglass mesh. It is moisture-resistant and commonly used in areas that are exposed to water, such as bathrooms and kitchens. Drywall, on the other hand, is made of gypsum plaster and paper or fibreglass matting. It is a versatile material that can be used in various applications, including walls and ceilings.
When it comes to durability and strength, wet wall is the clear winner. It is designed to withstand moisture, mould, and mildew, which makes it ideal for use in wet areas. Wet wall is also resistant to impact, which means it can withstand accidental bumps and knocks without cracking or breaking. Drywall, on the other hand, is less durable than wet wall and can easily be damaged by moisture, impact, or fire.
Both wet wall and drywall require different installation methods. Wet wall is heavier and thicker than drywall, which makes it more challenging to install. It also requires specialised tools and equipment, such as a carbide-tipped scoring knife and a jigsaw, to cut it to size. Drywall, on the other hand, is lightweight and easy to install. It can be cut to size with a utility knife and installed with screws or nails.
When it comes to cost, drywall is the more affordable option. It is widely available and can be purchased in large sheets, which makes it easy to install and cost-effective. Wet wall, on the other hand, is more expensive than drywall due to its specialized construction and installation requirements. However, when used in wet areas, wet wall can save you money in the long run by reducing the risk of water damage and mould growth.
Both wet wall and drywall can be finished and painted to achieve a smooth, aesthetically pleasing surface. Drywall, however, is more versatile in terms of design options. It can be textured, painted, or covered with wallpaper or other decorative finishes. Wet wall, on the other hand, has limited design options due to its rough, cement-like texture.
Maintaining wet wall and drywall requires different methods. Wet wall is designed to be moisture-resistant and requires minimal maintenance. However, it can be susceptible to staining if not properly sealed. Drywall requires more maintenance than wet wall and is susceptible to water damage and mould growth if exposed to moisture.
When it comes to environmental impact, wet wall and drywall have different characteristics. Wet wall is made of cement and reinforced with fibreglass mesh, which makes it heavy and less environmentally friendly. The production of cement is a significant contributor to greenhouse gas emissions, and the extraction of raw materials for cement production can have negative impacts on the environment.
Drywall, on the other hand, is made of gypsum, a naturally occurring mineral, and paper or fibreglass matting. It is a more environmentally friendly option than wet wall and can be recycled. Additionally, some manufacturers offer eco-friendly drywall options that use recycled materials and have low VOC emissions.
Wet wall and drywall are two different types of wall construction materials that have their unique features and advantages. Wet wall is ideal for use in wet areas, such as bathrooms and kitchens, due to its moisture-resistant properties and durability. Drywall, on the other hand, is a versatile material that can be used in various applications, including walls and ceilings, and is more affordable than wet wall. Ultimately, the choice between wet wall and drywall will depend on your specific needs and requirements.
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Wetwall can contribute to a modest increase in home value, particularly in bathrooms and kitchens, as buyers appreciate low-maintenance, moisture-resistant finishes. However, the value added depends heavily on the quality of installation and the overall aesthetic appeal. In the GTA market, updated wet areas are a selling feature, but wetwall alone is unlikely to dramatically shift your property's appraised value.
Wetwall is generally worth the investment for high-moisture areas like showers, bathtub surrounds, and bathroom walls, as it resists mould and requires minimal upkeep compared to tiled surfaces. The upfront cost is often offset by savings on grout maintenance, resealing, and potential water damage repairs over time. For GTA homeowners renovating bathrooms or utility rooms, wetwall offers a practical, durable, and cost-effective alternative to traditional tiling.
Drywall, also known as gypsum board, is a standard interior wall panel suited for dry areas but susceptible to damage from moisture and humidity. Wetwall, by contrast, is a solid, waterproof panel system — typically made from PVC or composite materials — specifically engineered to withstand continuous exposure to water. The key distinction is that wetwall provides a seamless, grout-free surface ideal for wet environments, while drywall requires additional waterproofing measures in such spaces.
One common mistake is improper taping and mudding of seams, which leads to visible cracks, bubbling, or uneven surfaces once the wall is painted. Another frequent error is failing to locate and fasten panels securely to studs, resulting in sagging, popping screws, or weak wall sections over time. Both mistakes are costly to fix after the fact, so proper technique and preparation are essential from the start.
Wetwall panels can be more expensive upfront than traditional ceramic tile or standard drywall with a waterproof membrane, which may deter budget-conscious homeowners. They can also be difficult to repair if scratched or cracked, since matching existing panels or seamlessly patching damage is challenging. Additionally, some wetwall products may have a more limited range of design options compared to the vast variety of tiles available, potentially limiting your aesthetic choices.
Factual claims in this post were verified by Konstruction Group against material standards including ASTM C1396 for gypsum board composition, the Gypsum Association's Fire Resistance Design Manual for performance characteristics, and Natural Resources Canada publications for environmental impact data. Building envelope and moisture management claims were cross-referenced with Building Science Corporation resources to ensure accuracy for Ontario renovation contexts.

Written & reviewed by
Fadi MamarCo-founder, Konstruction Group Inc
Engineering graduate from Toronto Metropolitan University with 14+ years in Toronto construction. Has overseen 500+ residential and commercial framing, insulation, and drywall projects across the GTA.
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