Have an odd issue at my new home. There is a carport off the side that is enclosed on two sides with painted cinder block and covered on top with 2 x 12's and plywood with a flat roof. The floor is concrete with a raised walkway around the back and one side. [ATTACH]60406[/ATTACH] I notice when it rains for a period of time the walkway as well as the walls will be wet with moisture. At first I thought it was a leaking roof but it is not. The roof is sound. The moisture comes into the carport from the rain. Oddly, the floor which is not that old, stays dry. The raised walkway and the walls are what get wet. On a day, after when it had rained, the fan trick got ride of the moisture in about an hour or so. Lower humidity at that point helped. My question is, is there anything I can do to reduce it? I tried a strong fan today (it can be seen on the right side of the walkway near the door) but it only seemed to make the situation worse. It just got wetter in there. Thanks!

I have a question about order of operations for my digging and formwork. I'm building a 15' x 23' detached MIL unit in my back yard. I've decided to use a reinforced monolithic slab. There will be a foundation drain around the perimeter of the slab, made of perforated pipe buried in gravel and enclosed in fabric, which will drain to the side sewer. Lastly, there will be rigid foam insulation under the slab, as well as vertically along the exterior edge of the slab (including the above-grade portion, which will be 6"). The thickened edge of the slab will extend 18" below grade. I'm still waiting for my final drawings from the engineer but it will basically be this: [ATTACH]61152[/ATTACH] So, how do I go about actually digging the trench for the thickened edge? It seems I have two options: [LIST=1] [*]dig a 14" wide trench, line the outsidewith a 2 ft. wall of vertical insulation, and build 6" high forms for the above-grade portion, [I]then[/I] after the concrete has set, dig another trench and lay the drain; OR [*]dig a trench that's 3+ ft. wide that will contain both the footing [I]and [/I]the drain, which means I need to build 2" high forms inside the trench that will need to hold back a whole lot more concrete. Then I can remove the forms, lay my drain, and backfill everything. [/LIST] Are these both valid approaches? Is one clearly better?