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There is a distinct difference between dampproofing and waterproofing. Dampproofing is intended to keep out soil moisture while waterproofing keeps out both moisture and liquid water. Shop for waterproofing products & vapor barriers designed to protect your foundation.
The American Concrete Institute (ACI 515.1) defines waterproofing as treating a surface or structure to resist water infiltration under hydrostatic pressure. In contrast, they define damp proofing as treating a structure or surface to resist water infiltration in the absence of hydrostatic pressure.
Waterproofing is the only method that will protect your building from the force of hydrostatic pressure water passing through your walls. Dampproofing, on the other hand, merely retards the moisture from being absorbed in buildings where you don’t have the worry about hydrostatic pressure.
When it comes to maintaining the integrity of your home, especially in areas prone to moisture, two terms often come up: damp proofing vs. waterproofing. While they might seem similar, they address different issues and require distinct approaches.
The main point to answer the question of waterproofing vs. dampproofing relates to the likelihood of hydrostatic pressure. From there, it’s a matter of initial cost, mobility, crack coverage, and the expected temperature fluctuations.
Some of the key differences between the two are the physical properties of the materials used, the thicknesses applied and the application service conditions. Damp proofing is intended to keep out soil moisture, while waterproofing keeps out both moisture (or water vapor) and liquid water.
Damp proofing is a method of preventing moisture from entering your home. This is usually done by creating a barrier between the ground and your home. Waterproofing, on the other hand, is a method of keeping water out of your home. This is usually done by sealing any cracks or holes in your home’s exterior.