Most fiberglass walls are laminated, so you can't repair much or access inside of wall at all. I have seen whole walls being replaced due to small area of damage. Delamination or bubbles seems common, too. I have never been sure of care, either. I wash/wax mine like a car. Streaks come right off since I wax it.
At some point we will upgrade, and likely end up with fiberglass exterior anyway!
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Eddy & Brenda
Canton, OH
2015 Silverado HD 6.0L
2014 Zinger 32QB
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