The construction industry is an ever-evolving sector that constantly adapts to new challenges posed by the environment. One of the most overlooked factors influencing construction projects is weather. Weather conditions can significantly impact shuttering materials, often compromising structural integrity, increasing costs, and delaying project timelines. This blog explores the effects of weather on shuttering, focusing on traditional materials like plywood and the innovative solutions provided by plastic concrete shuttering.
The Role of Shuttering in Construction
Shuttering, also known as formwork, provides the mould into which concrete is poured, shaping the structure until it sets. The durability and performance of shuttering materials are vital for the quality of construction. However, extreme weather conditions can challenge the efficacy of traditional materials like plywood shuttering boards, making choosing materials that can withstand environmental stresses essential.
How Weather Affects Shuttering Materials
1. Moisture and Rain
Plywood shuttering sheets are particularly vulnerable to water damage. When exposed to rain or high humidity, the laminate layers of plywood absorb moisture, leading to swelling, delamination, and eventual disintegration.
Solution:
Recycled plastic boards, such as WoWBoards, are completely water-resistant, making them ideal for use in regions with frequent rain or high humidity. Their impermeable structure ensures they maintain their integrity, even after prolonged exposure to water.
2. Extreme Heat
High temperatures can cause traditional plywood shuttering boards to warp and crack, especially when left exposed for extended periods. This can lead to uneven concrete finishes and higher wastage.
Solution:
Plastic shuttering boards are designed to resist warping, even in extreme heat. They maintain their shape and strength, ensuring consistent performance and reducing the risk of material failure.
3. Frost and Freezing Conditions
In colder climates, frost can cause traditional shuttering sheets to become brittle, leading to cracks during de-shuttering. Moisture trapped in plywood can also freeze and expand, causing further damage.
Solution:
Recycled plastic sheets remain unaffected by freezing conditions. Their robust composition ensures they retain flexibility and durability, even in sub-zero temperatures.
4. Prolonged Sunlight Exposure
Continuous exposure to UV rays can degrade plywood shuttering sheets, weakening their structure and reducing lifespan.
Solution:
Plastic concrete shuttering sheets, particularly those made from high-quality recycled plastics, are UV-resistant, ensuring long-term durability and performance even under harsh sunlight.
Advantages of Using Recycled Plastic Boards for Shuttering
1. Weather Resistance
Unlike plywood, recycled plastic sheets are water, heat, and UV radiation resistant, making them an all-weather solution for shuttering needs.
2. Enhanced Reusability
While traditional shuttering materials often degrade after a few uses, plastic shuttering sheets can be reused multiple times without compromising quality. This reusability translates to significant cost savings over time.
3. Eco-Friendly Alternative
Builders contribute to waste reduction and promote sustainable construction practices by opting for recycled plastic boards. Every plastic board manufactured diverts plastic waste from landfills and oceans, aligning construction projects with green building principles.
4. Cost-Effectiveness
Though the initial investment in plastic shuttering boards may be higher than plywood, their longevity and reusability make them a more economical choice in the long run.
Practical Tips to Overcome Weather Challenges in Shuttering
Choose Weather-Resistant Materials
Invest in plastic shuttering sheets or recycled plastic boards to ensure durability and performance across all weather conditions.
Store Materials Properly
Keep shuttering materials in covered, ventilated spaces to avoid prolonged exposure to moisture or direct sunlight.
Use Protective Coatings for Plywood
If using plywood, apply waterproof coatings to extend its life and reduce the impact of weather.
Plan for Seasonal Variations
Schedule construction activities that consider local weather patterns to minimise delays and material wastage.
Regular Inspection
Inspect shuttering materials for signs of wear or damage before use to ensure they meet project requirements.
Comparing Plastic Shuttering Boards and Plywood
| Feature | Plywood Shuttering | Plastic Shuttering Boards |
| Weather Resistance | Vulnerable to moisture and heat | Resistant to all weather conditions |
| Lifespan | 5–10 uses | 50+ uses |
| Eco-Friendliness | Requires virgin wood | Made from recycled materials |
| Cost | Lower initial cost | Higher initial cost, long-term savings |
| Maintenance | Requires waterproofing | Maintenance-free |
Conclusion
Weather conditions profoundly impact the performance and durability of shuttering materials. While traditional options like plywood face significant limitations, innovative solutions like recycled plastic sheets pave the way for more resilient and sustainable construction practices.
By choosing plastic shuttering boards, builders can overcome the challenges of moisture, heat, and UV exposure, ensuring consistent results and long-term savings. Moreover, these eco-friendly alternatives align with the global push towards sustainable construction, making them a preferred choice for modern projects.
Adapt to the future of construction with materials designed to thrive in all conditions. Explore WoWBoards and other sustainable solutions to revolutionise your building practices today.