That is Oriented Strand Board (OSB), typically used for sheathing. Looks like it has been used exposed to weather, which is not its intended use. There is no reasonable repair for that, other than r ... read more
It depends on the faucet and whether the faucet has an aereator. Even when the valve is turned into the off positions, there is still some residual water in the faucet, and aereator. Once all of the w ... read more