Spring Zip Pipe Flashing SRSC offer Zip Seal Pipe Flashings to suit specialist needs when the standard SRSC Spring Seal Pipe Flashings cannot be used. Zip Seals are designed to be wrapped around the penetration rather than sliding down. They are mainly used where there is an object sitting at the head of the pipe to prevent access for the standard flashing (eg: platforms). Stainless steel clips are used to secure the pipe flashing after they have been placed around the roof penetration. Zip Seal pipe flashings have a 20 year manufacturer guarantee.