PROCESS OVERVIEW - Rilem Test Method:
A tube is temporarily affixed to the masonry substrate and filled with water.
The height of the column of water, as measured from the center of the bowl to the meniscus in the tube, determines the hydrostatic pressure applied to the test area. This pressure can subsequently be converted into a velocity, or wind-driven rain speed, of 88.5 MPH
Different products are then applied to test areas on the structure.
After one week, the test is duplicated to determine the absorption rate at each of the test areas.
Comparing the performance of different treatments enables selection of the most effective product.
Monitoring the test areas enables determination of the coverage rate in sq ft. / gallon.
Longevity of the system is often dependant on whether the product was applied at 80 sf/gallon or 280 sf/gallon.
When properly applied, a 10-year, major manufacturer's warranty can be issued.
Contact Alpha Weatherproofing to discuss appropriate testing methods for your masonry structures.
