Barrier Between Concrete And Wood

These plates must be made of pressure treated lumber since concrete has a tendency to wick moisture from the ground.

Barrier between concrete and wood.

Anyplace where wood meets the ground or concrete the lumber must be pressure. Barrier membranes have typically provided moisture protection for decks and other applications. Apparently i may have made worse because we just had to replace the sub flooring again here within the last month. You could run a sawzall or keyhole saw blade in there and cut away the interface enough to slip in a waterproof barrier ice and water shield visqueen etc and then caulk it or you could just use concrete caulk.

15 mil vapor barrier by americover. When applied correctly they act as a barrier between preservative treated wood and metal connectors. It will also be a neon sign inviting carpenter ants and termites to come into your house and start munching on your home. During the replacement i attempted to reduce the moisture transference into the wood by installing some tar paper to act as a vapor barrier between the wood and the concrete slab.

An alternative would be to place a vapor barrier such as rubber between the. Doing so will result in rot and water damage to the homes sill foundation. Here are some of the company s and their products. Whether concrete pavers or granite masonry steps should never be placed directly against wood.

If you are worried about it several things you could do to mitigate it short of calling him back to redo it which is sort of iffy as to whether he did it wrong or just not best practices which calls for no direct contact between untreated wood and concrete stone brick block. After concrete s initial cure when it is expelling it s water content and shrinking it then acts like a sponge and absorbs moisture. Most commercial specs for building forbid non treated wood in direct contact with concrete. It is better to require some sort of phsyical barrier between concrete and wood treated or not treated.

Good building practices and building codes ibc 2003 require pressure treated wood where it it touches concrete.