Ventilation under impervious covering

[smbywater]

I am considering covering my hall with cardine (a superior form of vinyl) or laminate.

It is a suspended wooden floor dating from the 1950's. I am worried we may compromise the ventilation by doing so. Any comments or suggestions welcome.

 

[mointainwalker]

You won't compromise anything. Underfloor ventilation is just that: for the joists, not the floor or the house.

 

[smbywater]

Thanks for that, I have had problems in the past where an impervious layer was laid over boards and the next thing (6mnths later) was that the floor just dissintigrated with dry rot. So what I am really asking is how much ventilation into the underfloor cavity goes through the carpet anf flloor boards. Or is it so insignificant that it doesn't matter?

By the way the material in question is Kardean, not Cardine as I spelled it before!

 

[mointainwalker]

Extremely unlikely that your floor disintegrated from dry-rot, however whatever cause it was , the problem was already there ( due to very short elapsed time) before you put anything on it

Couldn't tell you about air interchange as it is incidental i.e. it happens although it is not intended that it should.