I bow to Brian, and please understand that I am only speaking from my inspection experience, and my understanding of Building Science (which I am still studying) but am helped from my physics background (Physics being the basis for all physical science :mrgreen:)
As I have stated here before, it is ALL about the specific climatic conditions in your specific area.
The CHicagoland area has 3 humid seasons, Lake Michigan (the GIG heat sink) and the reverse low pressure systems that fly through this area (look up, Lake Effect Snow).
But there is also the history of consruction in this area.
- The Chicago Fire. Move to ll masonry construction.
- The Building Dept. Run by the Unions, for their benefit. Also, take into account their expertise (really great. Most Chicago unions arfe really guilds, educating and bringing up their members) but there is also the simultanious rise in the Union’s political clout.
- Great Architects. Frank Wright, Louis Sullivan, Goerge Maher. The beginnings of pocket windows, cement shingles, Stucco, balloon framing, and now the notorious split faced block.
Differnt areas have different conditions and a good inspector will educate themselves to those conditions.
The houses that I mentioned were all built (ranches, no insulation, in a middle class north Chicago suburb) were built during the build-up of the Navy Orion anti-sub project. These tyype of houses were built for senior enlisted serving at the Glenview Naval Air Station, which was the headquarters of the Orion project.
So, I looked up the orginal development and came to understand their particular designs, and flaws, given how conditions are now.
All of these contribute to the “building science” aspect of our work.
Be well informed, keep educating yourself, because things ALWAYS change, Study, read, look up (Google makes that MUCH easier, now) and grow. In the finest NACHI tradition, be the BEST that you can be. Set yourself apart from the others.
And make more money because of what you have invested in yourself.