H68.0.02.6C-04
Operating Manual GMK 210
page 13 of 20
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Example sandwich: aluminum - insulation - plywood
Sandwich
Up-to-date sandwich constructions use mainly
high-
quality “closed-pore” insulation materials.
This reduces moisture problems in plane
areas, in open pore foams, there can be
significant amounts of water.
Suggested settings for sandwich like picture:
- d.45, 25 mm for evaluation of Insulation
(- d.60, 10 mm for evaluation of plywood)
Please keep in mind: metal constructions
below plywood can show extremely to high
display values, wooden frames also may show
to high values, but with suggestetd setting
above, no moisture warning will result.
Alternatively the detector mode can be
recommended instead of measuring mode:
please refer to 6 Operating-Modes
„Measuring Mode“ and „Detector Mode“
9.3 Measuring intervals / times
Inspections by the specialist retailer at regular intervals (annually) are common for new
caravans/motor vehicles to preserve leak tightness warranty. This is reasonable, but with costs!
Defects can lead to massive humidity damage within only little time. For example mildew can form
within few month.
Therefore responsible measuring times are for example:
- immediately after long usage (e.g. together with final cleaning)
- at longer standing phases, especially at not-roofed areas: every 3 month
- immediately after frost season
- during usage: regularly
9.4 Repair
If there is a spot with critically moisture then:
-
rectify the cause:
(replace sealing / supply sealing material
…)
This have to be done professionally and with adequate materials and tools.
The repairs should be done at a qualified garage or ask for the advice from an expert.
-
dehumidify
e.g. with standard air dehumidifier or with alternating heating and venting
Please consider (heating): preferable use electric heating but no simple gas heaters. Gas
heaters produce humidity and there is the danger of suffocation!
Close doors and windows (or only slightly opened) during heating.
Please consider (venting): Open doors and windows as wide as possible for rapid air
exchange
-
monitoring
Check the corresponding parts/spots for a longer period (record values!) to make sure that
ALL causes are rectified and the repair has been successful.
