1. What are the common types of building thermal insulation materials and their respective application scenarios?

Common thermal insulation materials widely used in construction, municipal and industrial projects mainly include five categories: glass wool, rock wool, pixel thermal insulation cotton, foil pixel board and aerogel blanket, each with distinct functions and applicable scenarios. Glass wool features thermal insulation, sound absorption and noise reduction, mostly applied in workshops, machine rooms, central air-conditioning air ducts, indoor suspended ceilings and partition walls. Rock wool boasts high fire resistance grade and strong weather resistance, serving as the mainstream fireproof thermal insulation material for building exterior walls and roofs. Pixel thermal insulation cotton has fine texture, high flatness and excellent sound insulation performance, suitable for projects with high requirements for interior decoration appearance and noise reduction. Foil pixel boards integrate reflective heat insulation, moisture proofing, corrosion resistance and neat appearance, commonly used for pipeline outer protection, exterior wall closing treatments and equipment surface protection layers. As high-end thermal insulation materials with ultra-low thermal conductivity, ultra-thin structure and high efficiency, aerogel blankets are specially adopted for severe high-temperature thermal insulation scenarios such as heating pipelines, high-temperature equipment and industrial furnaces. Enterprises generally select and match materials according to fire rating, temperature working conditions, noise reduction requirements and outdoor weather resistance demands.

2. How to distinguish fire resistance grades of thermal insulation materials? Are all of them Class A non-combustible?

Formal inorganic thermal insulation materials including rock wool, glass wool, pixel thermal insulation cotton and aerogel blanket are all Class A non-combustible materials that meet building fire acceptance standards. They are non-flammable, non-combustion-supporting and prevent flame spread, widely applied in residential buildings, public buildings, factories and municipal heating projects. With inorganic thermal insulation substrate matched with aluminum foil facing, foil pixel boards also reach Class A fire protection standard. Low-cost organic thermal insulation materials available on the market are mostly Class B1 or B2 combustible products with strict restrictions in fire inspection approval, and are explicitly prohibited for use in high-rise buildings, external thermal insulation of exterior walls and heating pipeline projects. For engineering procurement, priority is recommended to full Class A inorganic thermal insulation materials to avoid unqualified fire inspection acceptance and subsequent rework costs.

3. Will thermal insulation materials get damp, fall off or suffer degraded thermal insulation performance?

Qualified formal thermal insulation products have good hydrophobicity and structural stability, and will not easily get damp and fail with standard construction and complete outer protective layers. Phenomena such as insulation layer falling off, hollow bulging and decreased thermal insulation effect on site are mostly caused by insufficient material bulk density, inferior veneer, non-standard construction and lack of outer waterproof protection. For instance, foil pixel boards come with inherent moisture-proof reflective facing to effectively block erosion from water vapor and rainwater and protect inner thermal insulation cotton; aerogel blankets have high inherent hydrophobicity, delivering outstanding stability for underground pipelines and overhead outdoor pipelines. With compliant material selection, layered construction and complete outer protection, the thermal insulation system can maintain stable thermal insulation, noise reduction and fire resistance performance for a long time and greatly extend service life.

4. What are the differences between aerogel blankets and ordinary thermal insulation cotton? Is aerogel blanket worthy of adoption?

Aerogel blanket is currently the flexible thermal insulation material with the highest thermal efficiency on the market. Compared with conventional glass wool and rock wool, its prominent advantages lie in ultra-low thermal conductivity, thin thickness, high temperature resistance, non-degrading thermal insulation performance and long service life. To achieve the same thermal insulation effect, the thickness of aerogel blanket is only 1/3 to 1/5 of traditional thermal insulation materials, making it especially suitable for scenarios with narrow pipeline space, high-temperature steam pipelines, energy-saving renovation of equipment and reconstruction of aged pipelines with space constraints. Ordinary thermal insulation cotton fits conventional room-temperature environments, HVAC systems and noise reduction thermal insulation for building walls; aerogel blanket targets high-temperature working conditions, energy consumption reduction and ultra-thin construction as a high-end primary thermal insulation material. Its application rate keeps rising year by year in municipal heating, chemical industry, power plants and industrial technical transformation projects, with energy-saving benefits far exceeding the price difference of materials.

5. What is the main function of foil pixel board, and how does it differ from ordinary thermal insulation boards?

Foil pixel board is an integrated panel integrating protection, decoration and thermal insulation for thermal insulation systems. Unlike ordinary thermal insulation cotton only used for inner-layer thermal insulation, it is mainly applied for surface protection and closing treatment. The aluminum foil surface delivers thermal reflection, anti-radiation, waterproof, moisture-proof and anti-aging functions, with neat and compact panel structure. It solves drawbacks of traditional thermal insulation surfaces such as messy appearance, vulnerability to damage, water absorption and poor aesthetic effect. Widely used in pipeline outer wrapping, closing treatment for exterior wall internal and external corners, surface covering of machine room equipment and external thermal insulation of air ducts, it can protect inner glass wool, pixel thermal insulation cotton and rock wool from damage and water absorption, unify project appearance, and perfectly meet the requirements for high-quality projects, fine construction sites and municipal image projects.

6. What are the differences between pixel thermal insulation cotton and ordinary glass wool?

Pixel thermal insulation cotton is an upgraded sound-absorbing thermal insulation cotton with finer fibers, flatter surface, no slag shedding and better hand feel, featuring uniform bulk density and superior noise reduction effect compared with ordinary glass wool. Ordinary glass wool offers high cost performance and strong versatility, suitable for large-area thermal insulation and noise reduction in factories and general construction sites. Pixel thermal insulation cotton is more applicable to scenarios with strict requirements for tidiness, noise reduction effect and construction appearance, including residential suspended ceilings, indoor partition walls, shopping mall machine rooms and high-end decoration projects. It produces no fiber flyage, prevents skin irritation during construction and enables cleaner installation, making it a popular choice for home decoration, commercial construction and noise-control projects.

7. What inspection documents are required for engineering procurement of thermal insulation materials?

For formal project acceptance, manufacturers are generally required to provide a full set of documents including business license, product qualification certificate, factory inspection report, third-party type inspection report, fire resistance test report, thermal conductivity test report and water repellency test report. Qualified original manufacturers can provide complete, traceable and reinspectable documents for each batch of products, fully complying with acceptance requirements for bidding supervised by housing and urban-rural development authorities, fire departments and general contractors. Products from small informal workshops usually have incomplete documents and falsified parameters, which may easily lead to approval delays, rework and liability risks during project acceptance.

8. Can thermal insulation materials be customized in size and thickness? Do you support engineering cooperation?

Formal manufacturers integrating production and sales support customized processing for all product categories, including customized thickness, bulk density, cutting size, special-shaped processing and film lamination for glass wool, rock wool, pixel thermal insulation cotton, foil pixel board and aerogel blanket. Meanwhile, we provide free material selection guidance, construction scheme suggestions and consumption calculation services tailored to different working conditions such as exterior wall thermal insulation, HVAC noise reduction, heating pipelines and industrial equipment thermal insulation. We can meet bulk supply demands for various projects including old community renovation, new residential construction, factory projects, municipal heating and chemical equipment, support batch delivery and production scheduling based on site demands to maximally match construction schedules.

9. Why do more and more projects adopt full-series inorganic thermal insulation materials?

With increasingly stringent new codes for building energy conservation and fire protection, combustible organic thermal insulation materials carry prominent hidden dangers, face difficult acceptance and are subject to expanding prohibition scope. The full range of inorganic non-combustible materials (rock wool, glass wool, pixel thermal insulation cotton, aerogel blanket and foil pixel board) feature fire safety, environmental friendliness with no peculiar smell, weather resistance, anti-aging property and excellent energy-saving indicators, fully conforming to new fire codes for ultra-low energy buildings, old community renovation, municipal heating projects and industrial plants. At present, high-quality projects, government-funded projects and high-standard construction sites almost universally adopt full Class A inorganic thermal insulation systems for higher safety factors, higher acceptance pass rates and lower later operation and maintenance costs.

10. What are the advantages of purchasing thermal insulation materials directly from original manufacturers?

Purchasing directly from original manufacturers eliminates markup from intermediate dealers for higher cost performance; sufficient production capacity and stable spot inventory avoid schedule delays; complete product categories enable one-stop procurement of glass wool, rock wool, pixel thermal insulation cotton, foil pixel board and aerogel blanket without sourcing from multiple suppliers; controllable product quality, customizable specifications and complete acceptance documents are available; fast after-sales response allows rapid coordination of technical, production and quality inspection teams to resolve problems, greatly lowering procurement and schedule risks for projects, making it the preferred long-term cooperation mode for general contractors and distributors.