The sealant along the top of the molding strip that separates the sidewall of the motorhome from the tops of the basement doors has cracked and separated in spots. Is this anything more than a cosmeti...
Yes, it keeps water from entering sidewalls. depending on construction of your rig, it can cause rotting or delamination of sidewall. Dicor lap sealant or Dicor self leveling is used to go over the existing.
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