Wood for exteriors with no maintenance: technological advancements for facades

Various vernacular architectures showcase the use of wood as an exterior cladding. From Swedish fishermen’s cabins to American country homes with horizontal siding, these structures highlight wood’s versatility both as a structural element and as a finish. While contemporary architecture continues to value the elegance of this material, its application in large-scale projects has decreased due to significant maintenance demands. However, thanks to technological advancements in construction and architecture, natural wood can now achieve durability levels comparable to other modern materials. In this article, we will examine the main wood options—both low-maintenance and traditional—evaluating their longevity and aesthetic appeal.

Solid Wood

Solid wood is a classic and natural choice for exterior façades, known for its durability and aesthetic warmth. Species like cedar, larch, and oak are recognized for their resilience in outdoor conditions. Despite its charm, this option requires ongoing care. To preserve its color and prevent moisture damage, it’s essential to apply UV protectants, oils, or varnishes every 2-3 years. While it demands more upkeep than other alternatives, its natural appearance keeps it a popular choice.

Thermally Treated Wood

Thermally treated wood is a more resilient alternative, enhanced through a heat treatment process that improves its stability without chemicals. It requires less care than solid wood, although it’s advisable to apply protectants every 2-4 years to maintain its original hue. Compared to other options, it offers reduced maintenance, making it an attractive solution for those seeking a natural wood look without sacrificing durability.

Laminated Wood

Laminated wood, composed of layers of glued wood, is known for its superior stability and resistance to deformation, making it an excellent choice for exteriors. Despite its benefits, it still requires regular protection from the elements. Applying oils or varnishes every 2-3 years is recommended to prevent discoloration and ensure durability. While not entirely maintenance-free, it provides enhanced stability against harsh weather conditions.

Acetylated Wood

Acetylated wood is notably more resistant than the previous options. Its acetylation process significantly boosts its resistance to moisture, decay, and deformation. With minimal care needed, applying a UV protectant every 5 years is adequate to keep it in prime condition. Although this process greatly enhances its properties, it doesn’t eliminate maintenance requirements completely.

Parklex Prodema Wood

Parklex Prodema panels, which consist of a layer of natural wood protected by phenolic resin, are unique in their category. Unlike other wood products, they don’t require varnishing or oiling. A simple wash with soap and water suffices to maintain their appearance. Additionally, they are highly resistant to UV rays, moisture, and temperature fluctuations, ensuring they won’t fade or warp over time. These panels represent an ideal solution for those seeking a natural wood option for exteriors without the burden of constant upkeep.