Last year I nailed down the linoleum in my pantry with small brads because it was curling badly. This year during spring cleaning I noticed that the nails on the edge near the outer wall of the house are rusty. Does this mean a significant amount of water is seeping in from outside and I have to find and plug leaks or is this normal moisture?
The house is a Queen Anne (frame). The floor of the pantry is just above where the wood structure meets the cinder block foundation.