we have dave from lynnagain, associates from what you normally would call a termite inspector. it's actually a structural pest control company. is that right? >> that's right. >> we'll talk more about what license pest control folks do and why it's so important to know them and to know dave. and a structural engineer who looks at lots of decks and balconies and tries to figure out ways to fix and solve problems. and sometimes looks at the reasons that problems occur and called in to do the forensic investigation of that failure as well. and of course, harvey is here with pat. thanks for joining us, harvey. and i'm chief building inspect, lawrence cornfield. we have a bunch of slides we're going to go through today that i hope will give us sort of a basis to ask questions and focus our discussion. most of the decks that we see that we're going to talk about are made of wood. san francisco is a city built primarily of wood, in fact. and for better or for worse, it used to be wood was cheap and readily available and now, wood is expensive and you know, sometimes it's not even appr