The EIFS (Exterior Insulation and Finish System) was developed during the energy crisis of the late 1970s, initially introduced for commercial buildings before gradually expanding into residential and civil construction. Today, it represents 17% of exterior wall applications in commercial buildings, 3.5% in civil structures, and is experiencing a steady growth rate of 17% to 18% annually in the residential sector. This system offers a multi-layer composite solution for exterior wall insulation, suitable for both commercial and residential use.
The core component of the EIFS system is an insulating board made from polystyrene foam, typically ranging between 30 to 120 mm in thickness. This board is attached to the building's exterior wall using either synthetic adhesives or mechanical fasteners. A waterproof polymer-based base coat is then applied over the insulation layer, reinforced with a fiberglass mesh to provide structural support and enhance durability.
The outermost layer consists of a high-quality finish, often made from acrylic copolymer coatings, which not only provides aesthetic appeal but also ensures long-term resistance to fading, cracking, and weathering. These coatings come in a wide range of colors and textures, allowing for flexible design options while maintaining strong corrosion resistance and environmental resilience.
As energy efficiency becomes increasingly important, the EIFS system continues to gain popularity due to its thermal performance, ease of installation, and visual versatility. Its adaptability makes it a preferred choice for architects and builders looking for both functional and attractive exterior solutions. Online COD sensors, also known as inline COD probes, are instruments designed for continuous monitoring of chemical oxygen demand (COD) in water or wastewater. Utilizing state-of-the-art UV254 ultraviolet absorption technology, they provide rapid, accurate, and reliable measurements of organic content, supporting online digital transmission for seamless integration into water quality monitoring systems. Chemical Oxygen Demand (COD) is a crucial indicator for assessing organic pollution levels in water. It represents the amount of oxidant consumed during the oxidation of organic and certain inorganic materials. Elevated COD levels indicate excessive organic pollutants, which can deplete dissolved oxygen, harming aquatic ecosystems and reducing water usability. Monitoring COD ensures adherence to environmental regulations and aids in effective water treatment strategies. Online COD sensors employ the UV254 ultraviolet absorption method to analyze water samples. When irradiated, organic matter absorbs ultraviolet light, and the intensity of absorption correlates directly with the organic content, enabling precise COD value calculations. This non-chemical method is highly efficient and suitable for a broad range of water samples, from potable water to heavily polluted wastewater.  Our online COD sensors can also be configured as online TOC COD sensors or online TOC COD TU sensors, providing a comprehensive analysis of Water Quality Parameters. This versatility makes them ideal for a wide range of applications where precise monitoring of organic content, total organic carbon, and turbidity is crucial.  Online COD sensors and probes from Daruifuno are indispensable for precise and efficient water quality monitoring. With their ability to accurately measure COD, TOC, and TU, they play a vital role in environmental protection and industrial applications. By adopting these advanced tools, industries and researchers can better manage water resources, reduce pollution, and ensure compliance with regulations. If you want to know more about COD Sensor, please visit our COD Sensor category page to get product information and technical support。 online COD sensor,online COD probe,online TOC COD sensor, online TOC COD TU sensor Suzhou Delfino Environmental Technology Co., Ltd. , https://www.daruifuno.comOverview
What is COD?
How Online COD Sensors Work
Key Features of Online COD Sensors
Applications
Advanced Multi-Parameter Sensors
Conclusion
Exterior wall insulation and finishing system
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