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