What to use under deck to make a shed?

[Pete F.]

I have seen corrugated metal roofing work. Install it with the ribs up so that there is less contact with the joists and more room for water to run. The biggest problems with it occur when ice builds up under the deck on top of the roofing. If the deck is on the gable end of the house or you have a gutter that should minimize the problem. You can shim the joists with strips of pressure treated lumber so that you end up with a pitch. Another consideration might be starting the roofing away from the house so that you do not risk structural damage to the wall below the deck from water going where you do not want it.

[spence]

Deck is 9' above grade and has a gutter above it. Don't think water along the house will be an issue...

The shrink wrap idea has some great potential...simple and not that expensive. I'd like to keep the cost down, and the entire deck will be latticed in so you won't really be able to see it from the outside.

Thanks ! - spence

[Bob Thomas]

Spence,

When I bought my house 4 years ago, the old owners had that corrugated plastic put in place under the deck to store their sports car. Thusfar, it works great. Diverted to a gutter hung on the deck, it is pretty waterproof. Only problem is that in heavy rain, so much water pours out of the plastic, it blasts past the gutter and splashes under the deck. I was going to put another piece in the ground to divert that problem but built a shed instead. More room = more toys!!