More about non-invasive moisture testing

参考以前我写的说明：

http://houseinspection.blogspot.co.nz/2012/05/re-moisture-inspection-report.html

各种非侵犯性仪器的指数是不同的，我们常用的仪器有很多种，每一种都是相对读数，而非绝对%读数。

如果有任何可疑的读数，我们会在报告中给予说明，“可疑”读数可能是任意读数，只要是明显高于对比位置的读数

对于非侵犯性测湿的读数解读是综合的和复杂的过程，没有一个简单的界限能把高低明显区分开来

it to be noted that, 

1. there is no such a chart to indicate so called acceptable moisture level. 

2. any judgement to moisture level must be based on analysis of the building as a whole

3. most leaky buildings do not show any sign of high moisture readings based on non-invasive inspections

4. according to new version of real estate agreement, invasive moisture testing is banded from pre-purchase inspections

5. in most cases "acceptable" readings obtained to a house are either lower or not significantly higher than readings obtained from reference points (dry spots), but they can be anything from 0 to 100 or any other digit.

 

6. judge a building based on so called "acceptable moisture level" only can be dangerous and misleading

7. no one other than the inspector himself can interpret his moisture readings based on photos only without particular context