This blog post provides a comprehensive overview of ASTM D5957, the standard guide for flood testing horizontal waterproofing installations.
The water must be maintained for a minimum of 24 hours and a maximum of 72 hours .
While ASTM standards are typically available for purchase through the ASTM website or other online platforms, there are ways to access a free PDF download of ASTM D5957-98:
When searching for a free PDF, it is important to distinguish between legitimate sources and piracy risks.
The (reapproved in 2021) is the Standard Guide for Flood Testing Horizontal Waterproofing Installations . This guide establishes a methodology for verifying the watertightness of horizontal waterproofing systems—such as those on plaza decks and parking garages—before they are covered by final layers like pavers or soil. Core Technical Summary
Despite its age (originally approved in 1998), this guide remains widely referenced because the core methodology of flood testing has changed little, and later revisions (e.g., D5957-98(2017)) reaffirm its validity.
: Used for horizontal surfaces with a slope of 2% or less, such as plaza decks and parking garages.