Rammed-earth-home-roof, earth construction price: $365,000 @ 2,368 s.f. htd. this is literally the home that the client had always dreamed of having. previously on site was a turn-of –the-century adobe home that really wa…. Artist interview #3 - gerald katz (5 of 5) - rammed earth home - off grid solar power & water wells - duration: 4:20. artist hangout 293 views, artist interview #3 - gerald katz (4 of 5) - rammed earth home - roof construction - by tai zen - duration: 3:41. artist hangout recommended for you. 3:41. adobe barrel vault - duration: 21:05. .... Yes, you should know exactly what the builder is earning and what they are doing to earn that money. when building a true custom home, it is impossible to provide an exact dollar figure of what it will cost to build your home until the plans are drawn, the finish schedule is created and/or discussed and the various items included in the construction process are bid out.