Read this tip to make your life smarter, better, faster and wiser. LifeTips is the place to go when you need to know about Controlling Moisture Damage and other Waterproofing topics.
The point of a waterproofing membrane is to protect a building's visual and structural integrity by keeping water where it belongs and out of where it doesn't. To do its job and achieve total "waterproofocity", a membrane has to be:
• Impermeable. The membrane must be impermeable to prevent the passage of water.
• Flexible - membranes need to withstand any normal movement that may occur in building structures.
• Durable. The membrane must be able to retain its integrity over a long period of time.
• Designable. The membrane must lend itself to design details in a building. It must be suitable for each specific application. If a membrane cannot be applied where needed because of structural details, it is useless.
• Breathable. The membrane must be able to breathe so that moisture vapors from building interior and substrates can escape freely.
• Bondable. The membrane must be able to bond easily and readily to tiles that are fixed directly to them.
• User-friendly. The membrane must be easy to apply, relatively lightweight, non-hazardous, and environmentally safe.
• Repairable and maintainable. In exposed areas such as rooftops, the membrane should require little maintenance, and in the event of damage must be easily repairable.
• Continuous. The membrane should provide a continuous film, without areas of weakness such as overlaps, which could prove to be a potential source of water entry.
• Resistant. The membrane must withstand environmental and climatic conditions.