Saturday, November 13, 2010

Moisture test

A test conducted on wall moisture before painting.
Procedures:
Point the tester on wall, get the reading by pressing hold.

Test on plastered wall
If the reading is higher than 20% on external wall, or 16% on internal wall, painting can not be conducted as the moisture of wall is still high and will be affecting the paint painted. If the reading not exceeding the %, painting can be done.

Test on skim coated wall
Normally, reading on plastered wall will be higher that skim coated wall. It is due to the mortar of plastered wall where it can still absorb moisture of surrounding.

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