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underperforming insulation - mike82 - 01-31-2016 06:33 PM

Hi folks,

Recently I'd got a phone call from the client who wanted to check the efficiency of the insulation in his house. I did the scan with the use of thermal imager and had obtained images like these (attachement).
Please help me in the interpretation: 4052,4055 thermal images show the outside wall under a roof made of asphalt shingles, insulated with mineral wool and built-up sheets of plasterboard.
I'm not sure whether visible on the thermograms areas in blue, to dark blue mean:


shortages of insulation - the darkest areas

moisture - places in light blue

air infiltration from outside ?

[attachment=337]
[attachment=333]


4062,4065,4076 thermal images show the same wall (slant) its upper section.
What are areas visible in black and purple ?

Are these gaps in the insulation ?
blow cold air - temp.
outside was about -10 ° C.
inside + 19-20C ? Or it may be damp wool, or perhaps the lack of contact the wool to plasterboard ?

[attachment=334]
[attachment=335]
[attachment=336]

I do not think I can deduce this, but for sure I prefer to ask.
Is based on the thermogram can determine the existence of damp wool, whether it is necessary to use a moisture meter to check the moisture inside the material ?

Any conclusions are welcome

Regards, Michael