Field testing on 30 day old lightweight concrete deck 4” thick with high moisture content

Moisture testing was performed on two separate areas of an exposed deck (masonry wall, no windows)

Both control and test area had initial readings of 94% RH at a depth of 2”

Three testing probes were inserted in a triangular pattern within a 15’ x 15’ area to be treated with DRYCRETE Moisture Stop

A single testing probe was further inserted at 2” depth in an untreated area 20’ away from the treated area

After 45 days with heavy rainfall recorded in the month of June 2011, and with a full week of sunshine prior to final testing, the results were convincing:This is proof that under adverse conditions, with observed puddling water preventing an accurate field test on two separate occasions, DRYCRETE Moisture Stop proved to lower the RH moisture content to an acceptable level to accept standard floor coverings or coatings.

• Control area (untreated) returned a moisture reading of 91% RH.

• The DRYCRETE Moisture Stop treated area had a moisture reading < 80% RH on one probe and 81% RH on the other two probes.

This is proof that under adverse conditions, with observed puddling water preventing an accurate field test on two separate occasions, DRYCRETE Moisture Stop proved to lower the RH moisture content to an acceptable level to accept standard floor coverings or coatings