In article , "Peter" writes:
| It is a real problem, but more to bounce than to sitting in puddles
| Water hits concrete base, bounces up and then rots the
| floor from below.
| Remedy is a rubber skirt (strips cut from excess pond liner)
| and then also a gutter on the side of the roof (feeds a water butt)
| Not a problem for the bounce up to the side of the shed
| because that's usually treated.
| Put it on blocks.
|
| Unfortunately that would aggravate the problem because it is sitting
| on wooden bearers at the moment, so creating the gap at
| the base of the shed wall through which the bouncing water passes
| so hitting the underside of the floor.

No, it wouldn't. You are mistaken as to what the problem is.

Getting wet does not harm timber - staying damp does. If there is
no airflow, it will get damp in the autumn and stay that way until
spring. In wet years or locations, it will stay damp all year.
The reason to put sheds on bearers is to allow an airflow and not
to protect them from rain.

Gutters are a reasonable solution; a rubber skirt is precisely the
wrong thing to do.


Regards,
Nick Maclaren.