As a follow up to a recent Technical Bulletin (11-13) We would like to offer some additional options for
flashing steep drain sumps. Sika Roofing promotes the proper roofing practice of creating sufficiently sized
sumps at all roof drains. A proper sump will help direct water to the drain, expedite removal and minimize
ponding. Sika- Roofing offers prefabricated polyisocyanurate drain sumps to simplify this application. Continue reading
