house types and building stages

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Across
  1. 1. Cement and water
  2. 5. An essential supporting structure of a building
  3. 7. Houses on top of each other
  4. 9. Rooftop support structure
  5. 10. Making a brick wall
  6. 11. Single family house
  7. 14. Two houses connected
  8. 15. Prevents heat transfer
Down
  1. 2. Many house connected
  2. 3. surface treatment with brush
  3. 4. Pipe systems where waste water flows
  4. 6. Applied before start building
  5. 8. A long, thin, flat piece of wood
  6. 10. Hide space between floor and wall
  7. 12. The horizontal struture of building
  8. 13. Smoke exhaust