Is it a metal membrane ( The outside is metal) or is it a metal decking with built up membrane?
Roof inspections work best on low slope roofs with no ballast, metal decking with insulation and a built up membrane.
Other roof types can be done, but above is the easiest to train on IMO.
You don't have to be so far after sunset.
Sunny day to solar load the roof
Book says 15 to 20 degrees temperature difference
No rain in the previous 24 hours.
No large areas of ponding (If present don't consider them other than perhaps flat or sunken areas)
Winds less than 16mph
90 degree to 70 degree viewing angle
Above is book guidelines.
Some anomalies are harder to interpret than others.
Some roofs are easy to inspect, but others with minor leaks may be harder.
If you decide to try this for a business, take a thermography class and think about having liability and EO insurance or a well written contract.
Building in forefront is a very easy to train example. But there are a couple of areas where there is more to the story.
These anomalies are viewed easily even with a totally incorrect viewing angle.
The building in the background is a metal roof. The Decking is the membrane and it has seams sealed and paint.
Roof inspections work best on low slope roofs with no ballast, metal decking with insulation and a built up membrane.
Other roof types can be done, but above is the easiest to train on IMO.
You don't have to be so far after sunset.
Sunny day to solar load the roof
Book says 15 to 20 degrees temperature difference
No rain in the previous 24 hours.
No large areas of ponding (If present don't consider them other than perhaps flat or sunken areas)
Winds less than 16mph
90 degree to 70 degree viewing angle
Above is book guidelines.
Some anomalies are harder to interpret than others.
Some roofs are easy to inspect, but others with minor leaks may be harder.
If you decide to try this for a business, take a thermography class and think about having liability and EO insurance or a well written contract.
Building in forefront is a very easy to train example. But there are a couple of areas where there is more to the story.
These anomalies are viewed easily even with a totally incorrect viewing angle.
The building in the background is a metal roof. The Decking is the membrane and it has seams sealed and paint.
