Recent content by Ronald Etherington

Thank you for the comments. I have a moisture meter but it is calibrated for wood - there is help online in the form of a rough indication of what the wood readings mean when used with plaster. However this moisture meter shows the same 'ticking up' display as the multi meter. Since I am...

I have a damp area in a plastered wall and having remedied the cause I want to check if the wall is drying out. I am using the resistance option on my multi-meter and connecting the leads to 2 masonry nails part hammered into the damp area - about 1 inch apart. When I hook up the leads the...