hg\One of the projects that my wife and I are hoping to attack this summer is the flooring on our front porch. I haven't seen a whole lot of this kind of porches in our area, and the two contractors we've talked to aren't 100% sure of the best way to tackle it.
The foundation extends completely under the porch, making 2 "coal/cold" rooms under the porch separated by the main supporting wall in the basement. "Upstairs," the porch has brick walls on all sides with 4 brick support pillars on the front of porch. Currently, the floor is tongue and groove boards (I am assuming fir) attached directly to the joists. It is/was painted and it looks like there may have been caulk around the edges of the porch floor at one point but there isn't much left. We do have occasional water coming in on the interior walls of the basement. It hasn't been a major issue but it would be something nice the rid ourselves of.
I'm wondering what the best way to go about replacing it would be. The one contractor that did the most looking into it said that he would basically replace it how it currently is with fir, seal it, and then caulk around the interior. He estimated it would run around $1800 including labor, materials, etc.. Seemed kind of steep to me, but he also gave us a very reasonable quote on fixing some issues with our garage so I'm not sure. He said the biggest cost was the tongue and groove fir boards as they aren't cheap. We talked about laying a subfloor and installing tongue and groove over that, he said we could try that and put a vapor barrier between the two layers but he's not sure it would make much of a difference. He said the main advantage would be the insulation and that we would be better served insulating the rooms downstairs to get the same effect, and it wouldn't likely solve the water problem.
Below are some pictures I took from both above and below the porch. Water damage is pretty obvious.