I am in the midst of planning my conversion of our back deck into a screened porch. Currently of course it has decking boards and I am thinking that it would be just fine to leave them as the flooring. But I am concerned that the small gaps between the boards (they are very small, maybe 1/8 inch) might allow bugs up into the room. Of course keeping bugs out of the room is why we are screening it in. I was told by my in-laws that they never seem to have a bug problem and they have a screened in porch that has decking also. Something about the fact that bugs wont fly up into the openings between the boards. (sounds unlikely to me). It would be nice to keep the gaps if this is true so I could just hose the deck off as needed. Any ideas or help would be great! I thought of caulking the whole thing and also replacing the decking with plywood. Anything else? Or do I need to worry about it?