Application Examples - FLIR Systems b40 Manual Del Usuario

ally are, owing to reflections of other ob-
jects.
• Avoid direct sunlight on the details that
you are inspecting.
• Different types of faults, such as those in
a building's construction, may result in
the same type of infrared image.
• Correctly analyzing an infrared image
requires professional knowledge about
the application.
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Application examples

Insulation deficiencies
General information on insulation
deficiencies
Insulation deficiencies may result from in-
sulation losing volume over the course of
time and thereby not entirely filling the
cavity in a frame wall.
An infrared camera allows you to see these
insulation deficiencies because they either
have a different heat conduction property
than sections with correctly installed insu-
lation, and/or show the area where air is
penetrating the frame of the building.
To keep in mind
When you are inspecting a building, the
temperature difference between the inside
and outside should be at least 10°C (18°F).
Studs, water pipes, concrete columns, and
similar components may resemble an insu-
lation deficiency in an infrared image. Mi-
nor differences may also occur naturally.
Example image
In the image, insulation in the roof framing
is lacking. Due to the absence of insulation,
air has forced its way into the roof struc-
ture, which thus takes on a different char-
acteristic appearance in the infrared image.
Drafts
General information on drafts
Drafts can be found under baseboards,
around door and window casings, and
above ceiling trims. This type of draft is of-
ten possible to see with an infrared camera,
as a cooler airstream cools down the sur-
rounding surface.
To keep in mind
When you are investigating drafts in a
house, the air pressure inside the house
should be lower than that outside. Close all
doors, windows, and ventilation ducts, and
allow the kitchen fan to run for a while be-
fore you take the infrared images.
An infrared image of a draft often shows a
typical stream pattern. You can see this
stream pattern clearly in the picture.
Also keep in mind that drafts can be con-
cealed by heat from floor heating circuits.
Example image
The image shows a ceiling hatch where
faulty installation has resulted in a strong
draft.
Moisture and water damage
General information on moisture and
water damage
It is often possible to detect moisture and
water damage in a house by using an infra-
red camera. This is partly because the dam-
aged area has a different heat conduction
property and partly because it has a differ-
ent thermal capacity to store heat than the
surrounding material.
To keep in mind
Many factors can come into play as to how
moisture or water damage will appear in
an infrared image.