Patty – thanks for your question! This is exactly why I wanted to get this blog up and running.
To answer your question about rainscreens… it’s an exterior application of horizontal wood paneling, mounted slightly off the base wall (with a weather proof membrane underneath). This system is supposed to “screen” most of the rain and moisture away from the house while allowing air to circulate between the layers.
This website gives an informative explanation…check it out!