Here is a review left by a customer on a product. Would you say he was satisfied or dissatisfied?
Title: Oatley rubber sealing collars crack and leak
Review: I do not trust Oatley's rubber sealing collars to last more than a few years. Our home was built new approximatley 7 years ago with six Oatley Galvanized Base No-Calk Roof Flashings on the roof. These are "no-calk" flashing because they come with the Oatley rubber sealing collars. Last year I first noticed ceiling drywall damage after a heavy rain. The leak was from the Oatley rubber sealing collars which are almost all cracked and loose now. The Oatley rubber seals appear to oxidized from sun damage. These sealing collars should be made to last 30 to 40 years, not 6 years. We live in Northern California where the sun is not bad.
