I have a shed built with concrete blocks and a metal roof, terrible condensation in it and every time I go in, I see water on the walls and floor as well as drips on the metal roof. The shed is not insulated, but will be early next year.

I bought a dehumidifier to take some moisture out of the shed, but it only ever takes a tiny amount. So my question is, If I put a portable radiator into the shed and left it on for about 6 hours and the dehumidifier, would the dehumidifier work better?


You got a strange problem for an outdoor storage building. A dehumidifier is gonna cost you a mint to run if the moisture problem is that bad. Two things to think about. First, where is all this moisture coming from? can you mitigate the source? Second, look at the gables or sofits to see it you can install some good venting. You can put a ridge vent on metal roofs and maybe a couple of gable end vents. what kind of floor do you have? A soil floor would be a good source of excessive moisture, or fresh concrete for that mater. If it is soil, try some 4 or 6 mil plastic sheeting over the ground, then tape or secure it to the walls to block moisture form coming up out of the ground into your building. A fan that blows out of a vent would be a lot cheaper than a dehumidifier. How about some pictures? Could help tell the story. Good Luck.

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