Floor lifting up bearers

[glock40sw]

I'm going to jump in here with a question if I can folks. I have just put down 50m2 of Ironbark 19mm T&G straight onto joists. Clearance to ground is at least 400mm to the bottom of the bearer so probably about 600mm to the bottom of the floor. The 3 sides of the extension are all open so should be plenty of ventilation to the subfloor area. If I get a bit of water runoff going under the house (which might take a few days to dry off) is this going to present similar problems with my T&G?

The reason I ask is the existing place used to get a fair bit of water running under the house with big rains and the old T&G seem fine for it. Whilst I have done some temp stormwater measures I wasn't going to do them proper till a bit later (in hindsight I should have done them prior to the subfloor being built but as I wanted to incorporate bloocks etc. around the perimiter - there is a slight site cut - I was leaving this till last) thus some water will occasionly run under the house over the new T&G floors. I guess I am asking is it OK to leave like this for a few months?

G'day.
I'd be inclined to cut a temporary spoon drain around the perimiter to minimise the under floor moisture ingress. After all, it's better to do it now than have the floor fail later on.

[Larry McCully]

Because you have 3 sides that are open, you will have enough subfloor ventilation to carry of any relative humidity out. However it would be safe to astrevor sugested to dig a spoon drain around the house to redirect any ponding away from the cavity.