Why Does Timber & Natural Patina turn grey?
Over time natural timber and patina will eventually transform into a grey colour, particularly due to sunlight and moisture.
Educate yourselves in the finer details of why this occurs.
Weathering:
When timber is exposed to sunlight (UV radiation) and moisture (rain, dew, humidity), the surface undergoes a chemical reaction. UV rays break down the lining and other organic compounds in the wood, causing it to lose its natural colour pigments.
Oxidation:
As the wood is exposed to oxygen in the air over time, oxidation occurs, which further contributes to the change in colour. This oxidation process alters the molecular structure of the wood’s surface layers, leading to the development of a greyish hue.
Leaching of Extractives:
Natural oils, resins, and other extractives displayed in the wood’s surface can gradually leach out or break down when exposed to environmental conditions. This can contribute to the change in appearance as the wood ages.
Fungal Growth:
In moist environments, fungi and mould can grow on the surface of the wood. These organisms can produce pigments which contributes to the grey or black discolouration of the wood over time.
Natural Protection:
Interestingly, the grey patina which develops on the timber, can also act as a protective layer against further weathering and UV damage. This patina can reduce the rate at which the wood weathers and can enhance its durability in outdoor applications.
Embracing the natural patina of timber can enhance its aesthetic appeal and embrace its inherent beauty. See below for ways to embrace this:
Allow time for Natural Ageing: Allow the timber to age naturally over time without applying stains, paints, or coatings that block the natural weathering process. This will enable the wood to develop a unique character and patina base.
Choose Appropriate Finishes: If you prefer to protect the wood while still having that patina effect, choose finishes which will enhance rather than completely cover the natural grain and colour changes. For outdoor applications, consider penetrating oils or clear finishes which will allow the wood to breathe and change colour naturally.
Highlight Texture and Grain: Emphasize the natural texture and grain patterns on the timber in your design. Choose timber with distinctive patterns or knots which will become pronounced as the wood ages and patinas.
Blend with Surroundings: Consider other elements in your design to ensure the natural patina of the timber complements the design, blending with particular elements such as stones, metal, or greenery.
Maintenance and Care: While embracing the natural patina, it’s important to maintain the structural integrity of the timber. Regularly inspect and clean the wood to remove dirt, debris, and mould which can affect its appearance and longevity.
Customise Design Elements: Integrate timber with varying degrees of patina into different design elements. For example, use weathered timber for flooring, cladding, furniture, or architectural features to create a cohesive and inviting atmosphere.
Educate and Appreciate: Educate yourself and others about the natural aging process of timber and its benefits. Appreciate the beauty of aged timber as a reflection of its journey and the environment in which it resides.
Ultimately, by embracing the natural patina of timber, you can create spaces that feel warm, inviting, and connected to nature, while embracing the unique characteristic of this versatile material.
Overall, the process of timber patina and greying is a natural part of its lifecycle when exposed to the elements. While some may prefer the initial appearance of freshly cut or treated wood, others appreciate the character and low maintenance of weathered timber in outdoor settings.
View our timber species range here:https://www.modinex.com.au/species/.
Article By Charlton Cooper
| 18 July 2024
Charlton Cooper
Head of Projects
Charlton is a seasoned advisor in construction and design, collaborating with builders, developers, and architects to deliver exceptional projects. With extensive experience as a head of projects, Charlton combines deep knowledge of natural timber, aluminium, and concrete to provide innovative and inspiring design solutions.
