Most duct leaks are an application failure, not a product failure. A seven-step method for sealing joints properly, and the mistakes we see most often on site.
Two silver rolls, one drawing that just says aluminium tape. A side-by-side comparison using the tested figures, and a simple rule for choosing between them.
FSK tape is built from three bonded layers, each with a job. Here is what foil, scrim and kraft each contribute, and the figures to check before approving it for a project.