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jmacarthur
Porch floor
jmacarthur

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.

A. Spruce
Re: Porch floor
A. Spruce

Generally, wood rots if it can't dry out well enough after it gets wet. If your new porch rotted in 3 years, I would look at what kind of ventilation it has.

Once ventilation is addressed, something you can do to help preserve the wood and prevent critters from affecting it is to treat it with a borate solution, which is as simple as mixing one pound of 20 mule team borax into one gallon of hot water (dissolves best in hot water ). Apply with a brush, roller, or garden sprayer until saturated, let dry, repeat three times. The borate will prevent rot and critters. With the wood dry and installed, you can then paint it with a good quality exterior deck paint.

ed21
Re: Porch floor
ed21

Be sure any T&G wood can drain. Ideally it have enough slope to lead the water away from the house.

Sombreuil_mongrel
Re: Porch floor
Sombreuil_mongrel

Using ipe for a porch floor is needlessly expensive. You should be able to get mahogany for about half that price. Treat with water-repellent on the underside and edges, nail with stainless nails, sand if necessary and paint.
Casey

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