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    Chris - 14 / Jul / 2023

    The impact of colours on water-based exterior joinery coatings for windows and doors

    Choosing the right colour for your exterior joinery, such as windows and doors, can significantly enhance the overall aesthetics of your home. But did you know that the colour choice also affects the longevity, performance, and maintenance requirements of the windows and doors that they are applied to?

    The impact of colours on water-based exterior joinery coatings for windows and doors
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    In this blog post, we explore the influence of lighter and darker colours on water-based exterior joinery coatings, providing insights to help you make an informed decision. If you haven't seen our recent Instagram post on this topic, then click here.

    Understanding water-based exterior joinery coatings

    Water-based coatings have gained popularity due to their environmental friendliness, ease of use, and improved performance compared to traditional solvent-based alternatives. These coatings are formulated to protect wooden surfaces from external elements such as UV radiation, moisture, and temperature fluctuations, while offering an attractive finish.

    Anker Stuy works tirelessly to keep developing and improving our formulations to offer the best protection available, but when it comes to colour there are some factors outside of our control that are inherent to the colours themselves. It is important to understand the impact on degredation that colours have.

    The impact of lighter colours

    1. Heat Absorption
      Lighter colours, such as whites, creams, and pastels, tend to reflect more sunlight compared to darker shades. As a result, they absorb less heat, minimising the risk of thermal expansion and contraction. This can help reduce the stress on the wood, enhancing the coating's durability and overall lifespan.

    2. Fading and Discolouration
      Lighter colours are less prone to fading and discolouration caused by UV radiation. This is because they reflect a significant portion of the sun's rays, preventing them from penetrating the coating and causing damage to the wood underneath. As a result, the coating retains its original appearance for a longer time, reducing the need for frequent repainting or refinishing.

    3. Maintenance
      Lighter colours generally require less maintenance compared to darker shades. They tend to show dirt, dust, and other debris less prominently, allowing for a cleaner appearance even with minimal cleaning efforts. However, it's important to note that light-coloured coatings may be more susceptible to visible stains from water or environmental pollutants.

    The impact of darker colours

    1. Heat Retention
      Darker colours absorb more sunlight, resulting in higher heat absorption. While this can be beneficial in colder climates, as it contributes to passive solar heating, it can also lead to increased expansion and contraction of the wood. This expansion and contraction can potentially compromise the coating's integrity over time, making regular maintenance crucial.

    2. Fading and Discolouration
      Darker colours are more susceptible to fading and discolouration caused by UV radiation. The increased absorption of sunlight can accelerate the breakdown of pigments in the coating, leading to a dull or weathered appearance over time. Regular maintenance, such as applying protective topcoats or using UV-resistant coatings, is essential to preserve the colour and appearance of darker coatings.

    3. Aesthetics
      Darker colours can provide a rich and elegant look to your home's exterior. They can create a striking contrast with the surrounding environment or architectural elements, adding depth and character. However, it's important to consider the overall style and design of your property when opting for darker shades, as they can sometimes overpower the surrounding elements or make the building appear smaller.

    Choosing the right colour

    Class IClass IIClass IIITransparant lightTransparant dark
    Less than 36°C warmingBetween 36 and 44°C warmingMore than 44°C warming  
    RAL 1013, 1014, 1015, 1000, 1001, 1002, 1003, 1004, 1005, 1006, 1007, 1011, 1012, 1016, 1017, 1018, 1019, 1020, 1021 1023, 1024, 1027, 1028 1032, 1033, 1034, 2000, 2003, 2004, 3012, 3014, 3015, 3022, 5012, 5024, 6018, 6019, 6021, 6027, 6034, 7000, 7001, 7004, 7023, 7030, 7032, 7033, 7034, 7035, 7036, 7037, 7038, 040,7042, 7044, 7045, 7046, 7047, 9001, 9002, 9003, 9010, 9016, 9018RAL 2001, 2002 ,2003, 2004, 2008, 2009 ,2010, 2011, 2012, 3000 ,3001, 3002, 3003, 3013, 3016, 3017, 3018, 3020, 3027, 3031, 4001, 4002, 4005, 4006, 4008, 4010, 5000, 5001, 5005, 5007 ,5009, 5010, 5014, 5015, 5017, 5018, 5019, 5021, 5023, 6000 ,6001, 6002, 6003, 6011, 6013, 6016, 6017, 6024, 6025, 6026, 6028, 6029, 6032, 6033, 7002, 7003, 7005, 7006, 7008, 7009, 7010, 7011, 7012, 7013, 7015, 7022, 7024, 7031, 7039, 7043, 8000, 8001, 8002, 8003, 8004, 8007, 8008, 8023, 8024, 8025RAL 3004, 3005, 3007, 3009, 3011, 4004, 4007, 5002, 5003, 5004 ,5008, 5011, 5013, 5020, 5022, 6004, 6005, 6006, 6007 ,6008, 6009, 6012, 6014, 6015, 6020, 6022 ,7016, 7021, 7026, 8011, 8012, 8014, 8015, 8016, 8017, 8019, 8022, 8028, 9004, 9005, 9011 9017TR 1503 Antique Oak, TR 1505 Pine, TR 1506 Light Oak, TR 1508 Old kiefer, TR 1514 Essen, TR 1520 Oregon Pine, TR 4131 BridgewaterTR 1507 Dark oak, TR 1509 Nut, TR 1510 Teak, TR 1511 Mahonu, TR 1512 Pallisander, TR 1515 Ebony, TR 1517 Chestnut, TR 1528 Middle grey, TR 4138 Kennett, TR 4138 Wentworth

    When selecting a colour for  joinery coatings, it's essential to consider various factors such as climate, architectural style, personal preference, and maintenance requirements. It's advisable home-owners and joinery companies communicate to ensure you choose a colour that suits your specific needs and complements the overall aesthetics of your home, and don't forget that we will always be on hand to offer our opinion.

    Conclusion

    The choice between lighter and darker colours for water-based exterior joinery coatings involves a careful consideration of multiple factors. While lighter colours offer advantages such as heat reflection, reduced fading, and lower maintenance requirements, darker colours can provide a distinctive aesthetic appeal.

    By understanding the influence of colour on water-based coatings, you can make an informed decision that not only enhances the appearance of your windows and doors but also ensures their long-term performance and durability.

    Click here to find out more about the correct maintenance intervals of our products.

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