What to do about a Damp Crawl Space under front porch?
I have a bi-level with a narrow front port that runs half the width of the house. It's an L-shape along the front and then extends in right under the front door and stairs up/down. It is fully enclosed from the lower level which is obviously fully finished with a door under the upper stair case for access.
The crawl space is concrete and cinder block on all sides. There is no water getting in, but the area is always cold and musty. When you open the door, you can smell the must and cold. We don't really have anything there except some of the house networking and other low-voltage wiring. The area under the stairs right behind the door is basically our network room with all the panels and such. I've recently put the printer there and a small file, but now you can see the papers picking up the dampness if you leave them for a few hours.
Basically I want to solve this once and for all.
First, I was going to use Super Thoroseal to cover all of the concrete to help reduce the dampness and then see how that works. I know adding ventilation will help, but (1) I don't want the dampness being pulled into the basement and making it more humid and (2) that area is cold so it would cool the basement and require more heating. Also don't really have much space anywhere to add vents, closet on one side and small area under stair case on the other.
Lastly, the other option is to make an insulated half-wall right under the front door and cut off that "raw concrete" area under the porch from the "interior" unfinished area under the stairs. I actually like this idea the best, but I've been told that it will make the problem under the porch even worse.
Ok that's long enough, any help is greatly appreciated. Thank you.
Last edited by vpr80; 04-08-2012 at 01:31 PM.