Weatherproofing exposed shed floor area

[drew725]

Building a large shed that I designed with one wall recessed to allow for firewood storage. See photo. Seeking suggestions how to economically weather proof the floor of the firewood storage area. I don't have issues with spending some moola to do this right but thus far my solutions are over $1,000 which is a more than I was hoping to spend.
The floor area to be protected is 2'x20'. The floor is a layer of 3/4" OSB and a layer of 3/4" pressure treated Ply (the PT on top). The firewood will not sit directly on the floor as I'll raise it off with a couple of PT 2x4's to allow air circulation.

I was considering pond liner but hear that would be very expensive. I looked at rubber roofing membrane such as used on flat roofs but to cover the area it would cost just over $1,000 (membrane plus adhesive). Thought about making a pan for the entire area out of aluminum flashing but the widest pieces I could find is 20" and I would need at least 30".

There's probably some easy answer to this that I'm missing. Any suggestions would be
appreciated.

Thanks,
Drew

[bwill890]

What kind of material are planning to used?

[drew725]

@bwill890 I don't understand your question. Material to use? I'm open.

[Jerry M]

Talk to a local sheet-metal fabricator. They can make up a pan for you with galvanized SM for not too much $$

[GenerationW.W]

Jerry has the best idea. Unless you know someone with a break. You could buy roll coil stock aluminum and bend something yourself or have a friend bend it. I don't know off hand how wide the coil stock is, I think it is 24" wide. Just over lap it to get the width completely covered and run a bead of silicone where the metal overlaps to insure a weather tight seal.

[FrankC]

Another alternative might be vinyl deck covering.

[michladav]

To solve the problem of a drafty door, choose vinyl or rubber weather stripping. Fasten it to the sides and top of the door casing with nails or staples about every 6 inches.

A vinyl gasket will also do the trick. It's durable, inexpensive, and at the end of the winter, it can be torn off.

There's one other part of the door that can be a cause for concern, and that's the bottom where it meets the threshold, and very often, that's where the biggest draft comes from. The cure is a sweep that's applied to the bottom of the door. Sweeps are great for an irregular floor. Buy either the kind that nails onto the door or has an adhesive that holds it in place. Either kind will seal up the door nicely.

Houses with old windows probably have leaky windows. To fix those leaks, use sealant foam at the top, bottom and middle of each window. The foam will compress, so the windows can still be locked.

Custom home builder Paradise Valley AZ.

[bmorto1504]

We installed an epoxy floor coating and it was really bad. Started out very very slick. Static electricity was a problem. Any kind of grit would score the floor so it went from to sick to dull and ugly.
bmorto