Water Intrusion Evaluation for Caulkless Siding, Window, And Door Systems (January 2002, 20 p.)
Over time all exterior wall sealant systems, including caulk, leak. Caulks work from a few days
to a few years, which makes it impossible to predict when and where maintenance will be
required. Since wall siding systems vary in their reliance on sealants through proper system
selection and design a caulkless wall system may be developed. A caulkless wall siding system
would not require sealants, or caulk, thereby eliminating both the initial expense and the routine
maintenance associated with caulk. The purpose of this research is to design, evaluate, install,
and monitor wall siding systems that do not require caulk, either initially or during routine
maintenance.
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