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On October 30, 2025, the 7th China Building Thermal Insulation Conference concluded successfully in Tianjin. As a leading company in the field of domestic building thermal insulation, Zhejiang Keda New Building Materials Co., Ltd. was invited to participate in the conference to discuss with industry experts and business representatives accelerating the improvement of exterior wall insulation (insulation and decoration integration) engineering technology, solving quality and safety risks, and empowering 'urban renewal'. Zhejiang Keda New Building Materials Co., Ltd. has been deeply involved in the field of polyurethane insulation composite panels for more than 20 years and is the creator of this technology in China. Its self-developed B1 flame-retardant core layer preparation technology achieves dual optimization of the flame-retardant and thermal insulation properties of the core material through its exclusive formula and process, effectively solving the pain points of traditional thermal insulation materials being flammable and lacking in durability. At present, Keda has established an industrial production capacity of 25,000 square meters of composite panels per day, and plans to further expand production to an annual output of 20 million square meters.

Polyurethane hard bubble insulation composite board (PU hard bubble composite board) is a highly efficient and energy-saving building insulation material. It is composed of polyurethane hard bubble core material and metal or non-metal panels. It has the advantages of low thermal conductivity, strong wind pressure, and adjustable fire resistance. However, its use must strictly follow the specifications, otherwise it may cause insulation failure, safety hazards or shorten service life. The following are the key precautions and detailed descriptions: 1. Precautions for design stage fire protection performance matching standards: Select the fire protection level according to the 'Fire Protection Code for Building Design' (GB50016). For residential buildings with a building height of >54m or public buildings with a building height of >50m, the exterior wall insulation material must be Class A (not burnable). Other buildings can adopt B1 (flammable retardant) or B2 (flammable), but fireproof isolation belts are required. Non-standard scenarios: If the project requirements are higher than the national standards (such as data centers, chemical plants), PU hard foam core materials with flame retardant added (oxygen index ≥28%

Polyurethane hard bubble insulation and decorative integrated board is a composite board that integrates insulation and decorative functions. It has the following significant characteristics: 1. Excellent thermal conductivity of thermal conductivity: The thermal conductivity of polyurethane hard bubbles is only 0.024-0.040W/m·K, which is one of the smallest thermal conductivity among industrial insulation materials, far lower than other common insulation materials such as EPS foamed polystyrene boards. High thermal resistance: Its thermal resistance value can effectively reduce the transfer of heat and improve the insulation effect of the building. Closed-cell structure: The polyurethane hard bubble body has a continuous and dense skin and close-cell of nearly 100% high-strength interconnected wall. It has ideal water impermeability, which can effectively prevent water vapor penetration and maintain stability in thermal insulation performance. 2. Various decorative effects. High-end decorative effects: This board can provide a variety of imitation high-end stone patterns, overcome the monotonous color of general exterior wall paints and meet the needs of different architectural styles. Rich patterns and colors: metal can be used for decorative surfaces

Polyurethane hard bubble waterproof and insulation integrated board ('integrated integrated board') is a new building material integrating waterproof, insulation, heat insulation, lightweight, high strength and other functions. It is widely used in waterproof and insulation projects in roofs, walls and other parts of industrial and civil buildings. The installation method must be combined with the characteristics of the board, design requirements and construction specifications to ensure waterproof, thermal insulation performance and structural safety. The following are the detailed installation steps and key points: 1. Preparation before construction 1. Material inspection board acceptance: Check whether the specifications (thickness, length, width), appearance (no cracks, deformation, bubbles), performance (density, thermal conductivity, waterproofing grade) of the integrated board meet the design requirements, and attach a quality certificate. Accessories preparation: prepare special adhesives (such as polyurethane adhesives, cement-based adhesives), anchors (such as plastic expansion bolts, stainless steel anchors), sealants (such as silicone sealants), and waterproof coils (such as self-adhesive high scores

SPD water-based foamed polyurea sound insulation insulation board is a new environmentally friendly material. It combines the high strength, weather resistance and lightweight and thermal insulation properties of polyurea technology. It is widely used in construction, industry, transportation and other fields. The following is the specific application scope and advantages analysis: 1. Construction field 1. Application scenarios of building exterior wall insulation system: exterior wall insulation layer for residential, commercial buildings, and public facilities. Advantages: High efficiency heat insulation: The foamed structure forms closed-cell bubbles, with low thermal conductivity, effectively reducing heat conduction and energy consumption. Fire safety: Polyurea materials are resistant to high temperatures, have no droplets or low smoke when burning, and meet Class A fire protection standards (such as GB 8624-2012). Strong weather resistance: anti-ultraviolet rays, anti-aging, adapt to extreme climates (such as high temperature, severe cold, and humidity). Convenient construction: it can adopt spraying or pasting technology to bond firmly to the base layer and shorten the construction period. 2. Integrated application scenarios for roof insulation and waterproofing: flat roofs and sloped roofs

Polyurethane Rigid Foam Insulation Composite Panel is a high-performance insulation material that uses polyurethane hard foam as the core material and has composite metal or non-metal panels on both sides (such as color steel plates, aluminum foil, cement fiberboard, etc.). With its excellent thermal insulation performance, lightweight and high strength, fire and moisture resistance, and convenient construction, it is widely used in construction, cold chain, industrial equipment, transportation and other fields. The following is a detailed analysis of its core application scope: 1. Construction field 1. Application scenarios of building exterior wall insulation system: exterior wall insulation layer of residential, commercial buildings, and public buildings. Advantages: High efficiency insulation: Polyurethane hard bubbles have low thermal conductivity (≤0.024W/(m·K)), which can significantly reduce building energy consumption and meet energy-saving standards (such as China's 'Public Building Energy Saving Design Standards' GB 50189). Lightweight and high-strength

Polyurethane hard bubble insulation and decorative integrated board ('integrated integrated board') is a new type of building exterior wall material integrating thermal insulation, decoration, waterproofing, fireproofing and other functions. It is widely used in exterior wall insulation and decoration projects of residential, commercial buildings and industrial factories. Its usage method covers construction preparation, installation process, detailed processing and post-maintenance. The following are detailed instructions: 1. Prepare materials before construction. Check the board acceptance: Check the specifications (thickness, size), color, surface flatness and edge integrity of the integrated board to ensure that there are no cracks, deformation or degumming. Accessories check: Make sure that anchors, bonded mortar, sealant, textured paper and other auxiliary materials meet the design requirements, and check the shelf life. Base treatment: Clean the base wall (concrete, masonry, etc.), remove oil stains, floating ash, loose particles and hollow parts. When repairing cracks or uneven areas, level them with cement mortar, and the base layer flatness deviation is ≤3mm/2m. Measuring the water content on the wall

Polyurethane hard bubble waterproof and insulation integrated board ('polyurethane integrated board') is a new type of building board that integrates waterproof, insulation, heat insulation, lightweight, high strength and other functions. It uses polyurethane hard bubble as the core material and combines the waterproof layer (such as aluminum foil, polymer film or asphalt-based material) with the insulation layer through special processes. Its application range is wide, covering multiple fields such as building exterior walls, roofs, cold chain logistics, industrial equipment, etc. The following are the specific application scenarios and advantages analysis: 1. Building exterior wall insulation system 1. Residential and commercial building exterior wall application scenarios: Integrated exterior wall insulation and decoration projects of high-rise residential buildings, office buildings, shopping centers and other buildings. Advantages: High efficiency insulation: Polyurethane hard bubbles have low thermal conductivity (≤0.024W/(m·K)), which can significantly reduce building energy consumption and meet energy-saving standards (such as China's 'Public Building Energy-Saving Design Standards' GB 50189). Waterproof and moisture-proof: outer waterproof film (such as aluminum foil

Polyurethane hard foam insulation composite board (PU hard foam composite board) is a high-efficiency insulation material with polyurethane hard foam as the core material and composite metal or non-metallic surface materials on both sides (such as color steel plates, aluminum foil, cement fiberboard, etc.), which is widely used in exterior walls, roofs, cold storages, pipelines and other scenarios. The usage method needs to be combined with design specifications, construction technology and safety requirements. The following is a detailed description of the four stages: selection preparation, construction process, key node control, acceptance and maintenance: 1. Selection and preliminary preparation 1. Selection and pre-preparation 1. Selection and building exterior walls according to the scene: Metal-surface polyurethane composite panels (such as color steel sandwich panels) are preferred, with a thickness of the surface material ≥0.5mm, core material density ≥35kg/m3, and a fire resistance level of B1 (flammable retardant) or A (not combustible, flame retardant is required). Cold storage insulation: double-sided stainless steel or aluminum foil composite panel, core density ≥40kg/m3, closed porosity ≥95%, and low temperature environment (-40℃ to +80