The Perma-Boot is a gasket-less two piece pipe boot repair system designed to permanently repair the most common type of roof leak – the leak around the vent pipes that penetrate your roof. The Perma-Boot can also be used as a very effective preventative maintenance product to guard against future roof leaks and the resulting damage to sheetrock, insulation, paint and hardwood floors etc. The Perma-Boot will stand up to all weather extremes and is warranted for the life of the existing shingle.