We replaced our 100 yr. old porch floor with Fir. Within 2 yrs. it has rotted out in many places. I painted it with porch floor paint on the top and bottom. The porch is covered, however it has rain blow in on it. We live in Kansas which is a fairly dry environment. What wood would you recommend? I have looked up Ipe wood however it says the tongue and groove needs to be covered which ours is, but it does have rain and snow blow in on it. I would like to stay with around a 3" width.