Building Materials

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Across
  1. 2. Transparent, allows light
  2. 5. Reinforced with fibers
  3. 7. Wooden structural material
  4. 8. Roofing material, flat
  5. 10. Traditional mud plaster
  6. 11. Made from limestone & clay
  7. 12. Polished wood surface
Down
  1. 1. Iron alloy for structure
  2. 3. Lightweight concrete
  3. 4. Plastic or synthetic alternative
  4. 6. Strong, durable, used in walls
  5. 8. Flooring & sculpture natural
  6. 9. Compressed earth blocks
  7. 11. Natural insulating material
  8. 13. Decorative clay tiles