Heat Insulating Ceramic Hollow Building Bricks
These hollow ceramic bricks are fired from clay and designed with internal voids to provide superior thermal insulation in building walls. They fall under HTS 6904.10.00.30 as heat insulating hollow building bricks, meeting Chapter 69 requirements for fired ceramic products used in construction. The structure minimizes heat transfer while maintaining structural integrity.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If solid rather than hollow construction
Solid ceramic building bricks without hollow insulating structure fall under other building bricks in 6904.90
If not fired after shaping or contains organic binders
Articles heated below 800°C or not meeting fired ceramic definition are excluded from Chapter 69 per chapter notes
If for refractory building applications above 1000°C
High-temperature refractory bricks shift to Chapter 69 heading 6902 for heat-resistant construction materials
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Import Tips & Compliance
• Verify firing temperature exceeds 800°C and document thermal conductivity specs to confirm heat insulating classification per Chapter 69 notes
• Include test reports for water absorption and material composition to avoid reclassification as non-ceramic under heading 6804
• Check building code compliance certificates as common pitfalls include missing structural load-bearing documentation
Related Products under HTS 6904.10.00.30
Thermal Insulated Hollow Clay Bricks for Walls
Fired hollow clay bricks engineered for low thermal conductivity, used in exterior and interior wall construction to enhance energy efficiency. Classified under HTS 6904.10.00.30 due to their heat insulating properties and hollow design meeting ceramic building brick specifications. Ideal for passive house standards and green building projects.
Low-Density Hollow Insulating Ceramic Bricks
Lightweight hollow bricks made from fired ceramic materials with voids for exceptional heat insulation in residential construction. HTS 6904.10.00.30 classification applies to these heat insulating hollow building bricks per fired ceramic building material definitions. Reduces heating costs in energy-efficient homes.
Energy-Saving Hollow Heat Insulation Bricks
Hollow ceramic bricks specifically formulated for heat insulation, fired to create porous structure for superior thermal performance in buildings. Falls under HTS 6904.10.00.30 as heat insulating hollow bricks meeting Chapter 69 firing and ceramic composition requirements. Commonly used in sustainable architecture.
Porous Hollow Ceramic Thermal Bricks
Fired ceramic hollow bricks with engineered porosity for optimal heat insulation in cavity wall systems. Classified HTS 6904.10.00.30 for heat insulating hollow building bricks per official definitions excluding unfired products. Provides breathable moisture control alongside thermal benefits.
Hollow Insulating Fireclay Building Bricks
Heat insulating hollow bricks made from fired fireclay suitable for moderate temperature construction applications. HTS 6904.10.00.30 covers these ceramic building bricks designed specifically for thermal insulation through hollow core construction. Balances durability with energy efficiency.
Lightweight Hollow Thermal Ceramic Blocks
Fired lightweight hollow ceramic blocks optimized for heat insulation in multi-story residential construction. Classified under HTS 6904.10.00.30 as heat insulating hollow building bricks meeting fired ceramic construction material standards. Accelerates construction while improving thermal envelope.