[rusnak]

I'm planning on building a new office building.

I need to learn about all of the above and didn't want to clutter the forum with three threads when I could just start one.

I want to use spray in expanding foam insulation for energy efficiency. New building codes require us to build a roof that is solar panel ready, and I need a high volume copier.

I also need to research outdoor speakers. I'm thinking of going with QSC ADS8T. I need probably 4 of those. I prefer amplified speakers like the K10 but this is a permanent application.