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The Right Caulk For the Job by Alex Wilson Last month I provided some caulking tips from the pros who seal commercial buildings. In this column, I will review caulking materials. I will limit this to caulks available in the standard l0- to 12-ounce tubes that most builders use. In choosing caulk, you should consider a number of important factors: What materials are being sealed? How long a service life do you want? Will the caulk be applied in damp conditions? Will the cured joint be exposed to heavy moisture loads? How much joint movement do you expect? How easy is the caulk to apply and tool? And how much are you willing to spend? If you don't know the answers