 Hi, this is Nate Adams of Energy Smart Home Performance, and I'm up in an attic today getting the prep work taken care of. I don't always help out with this, but I'll be doing it in this case. So this spot right here, if you look over here, this is a bathroom. This is called a drop soffit, so the ceiling is down about a foot there. This is a big leakage area, so I'm going to prep that by putting some fabric across the top and foaming it in. But then there's another open wall cavity here, there's open wall cavities everywhere. So what you're looking down, this is inside the wall, the second floor. So there's heat that just works its way through here, and any air leaks like outlets and light switches and so forth leak air up into here. So I'm getting this ready by stuffing it with some fiberglass, which you see through here, and then I'm going to foam the top of that. And then also note where you have a round object or a square hole, you want to get those sealed up. That's typically how it gets cut for plumbing stacks, so there's two right here. And then the last thing that I've been working on is over on the gable end. This is a very old house, this was originally built in 1842. So in Cleveland this is about as old as they get, and so this is also an open wall cavity, the outside wall. We're going to be blowing these walls next year. And so I wanted to get a top there so that when we're dense packing this full of insulation it can't just blow up and through. And then we'll never get a really tight pack. So this is not going to affect the air leakage numbers today, but it will next year once we get this fixed up. Now this house is also unusual. Take a look where you can see daylight coming in from outside in the siding. This is kind of crazy. So this can be where insects and bugs and so forth can make their way in. In fact over here there's a place big enough you can see where somebody's clocked it. So I'm just going to nip that with some foam while I'm at it. And then the last piece, oops, here's why you check your work. I missed that hole. I need to get that plugged. You can see up here I got that plugged with some fiberglass. And fiberglass, I'll get some foam over top of that. The fiberglass is just to keep the foam from falling straight out there. But over here you can see up in there this goes into the Eve. So this is where critters can get in. If they can get into that Eve then they can climb into here. And this particular house had a really bad pest problem. So hence you can see we've removed the insulation. So this is an interesting project and an interesting bit of prep that needed to get done for it. So I thought I would show it off.