Uploaded on 2014-11-07 by itpm2000

[1]: https://edxuploads.s3.amazonaws.com/14153827106501599.jpg I thought long and hard about this question... Cement used is basically Portland type, wood in the United states comes from the Pacific Nortwest and areas of the Southeast. We don't use straw, bamboo won't be a great hit here unless it has better weather resistance than wood (a local source material) or Steel (which also is make in the midwest. Our homes contain predominantly wood, metal reinforcement, with a splash of fiberglass used for the roofing material (all at best interstate not global). In short, we still export more building materials than we import unlike many other countries. However, I was able to address the first part of the question with regards to the past. The home below is the historic farmhouse located on the grounds of our municipal area. All of it (minus the shingles which were improved later and depending on brand could be possible imports) is local sourced from the surrounding area according to the people who provide the upkeep and information on it. It is made entirely of wood, which was a primary export of the United States (we have lots of land to grow it on and the material is very functional) and our forestry industry still provides $ 30 million in exports today with China quickly becoming our chief trading partner according to the Wall Street Journal. http://online.wsj.com/articles/SB10001424052748703507804576130464080584434 Steve Ray