I've pulled up the corner molding to lay down the new laminate flooring and have noticed that there is a nice gap between the floor and the sill. This in both '29 part of the house and the 70's addition. I'm guessing that is deliberate and is the way hardwood was laid.
Since I have the molding off here, it seems like thing to do is fill it with some of that low expansion foam. I've pushed the underlayment vapor barrier into the cracks. But I wonder what to do with the rest of the house. Is this a significant air leak? Should I stuff fiberglass up to the sill from underneath, or is there another course of action?
Jeff