Paraplast 'S' 4mm is a torch applied bitumen waterproofing membrane. Application areas include non-accessible low pitched concrete roof decks, low pitched timber roof boards, below grade foundation floors and walls, under pavers (with protection), rejuvenation of existing waterproofing, waterproofing of decks with and without thermal insulation, reinforced concrete decks and prefabricated concrete. Paraplast 'S' 4mm is reinforced with a high performance rot proof non-woven polyester reinforecement offering Paraplast 'S' 4mm high puncture resistance and anti-aging properties. Paraplast 'S' 4mm is designed for new works and refurbishment works.