tailieunhanh - Environmental Site Assessment Phase 1: Fundamentals, Guidelines, and Regulations - Chapter 9

Nhiều tòa nhà phần Vật liệu độc hại đó là phần của cấu trúc hoặc có liên quan với cách độc đáo tòa nhà. Vật liệu xây dựng Điều đó phần các chất gây nguy hiểm sức khỏe cho những người cư ngụ xây dựng tiềm năng nếu quản lý yếu kém, và các chất độc hại phát hành từ tháng Hãy liên kết các cấu trúc chức năng hoặc thùng. Mặc dù sự hiện diện của họ giảm giá trị xây dựng, một đánh giá vật liệu xây dựng không phải là bắt buộc theo Quy tắc của tất. | Chapter 9 Building Materials Introduction Many buildings contain hazardous materials that are part of the structure or are typically associated with buildings. Construction materials contain substances that pose a potential health hazard to the building occupants if mismanaged and hazardous substances may be released from associated structures or functional enclosures. Although their presence devalues a building a building materials assessment is not mandated by the All Appropriate Inquiries Rule nor required by the ASTM Standard. In Phase I environmental site assessments asbestos content in buildings should be assessed either through speculation or sampling. Asbestos management and or remediation can be very costly. Unwary buyers could find themselves burdened with unanticipated expenses that in some cases could exceed the value of the structure itself. An assessment of lead-containing materials in building materials and or around the property could have a significant impact on property especially residential property or day care centers where there is the likelihood that children will occupy the space. The potential for PCB contamination of the soil should also be assessed. Other issues to investigate include radon in homes pesticide usage high-power electromagnetic emitters and moisture or mold contamination. Radon is a concern in some parts of the country more than others depending on the uranium content of the soil and building structures. The potential for toxic pesticides in a building are sometimes addressed and exposures to electromagnetic fields from high-power transmission lines are getting press. Moisture entry into a structure with resulting mold growth on building materials can involve structural defects in a building for which repairs may in some cases exceed the cost of the structure. Prior to beginning a building materials investigation review the building records. In the interest of saving time spent on site an upfront records review is important.