Waterproofing vs Watershedding Systems

Waterproof Systems
Waterproof systems are required when water moves in more than one direction. Some parts of a building that require waterproof systems or detailing are:

  • flat roofs
  • decks
  • the top of parapet walls
  • window sills
  • door sills
  • gutters

Water Shedding Systems
Water shedding systems can be used when water moves in only one direction.
Some parts of a building that utilize water shedding systems are:

  • sloped roofs
  • wall cladding
  • metal flashings
  • fascia coverings
  • downpipes