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Tar can be removed using a proprietary tar
remover which is available from most car
accessory shops. Do not use petrol or other
chemicals without approval.
It is a popular misconception that acrylic
motorhome windows are vacuum sealed.
This is not so. The windows in a motorhome
can, as with domestic glazing, be susceptible
to temporary condensation if the temperature
difference between inside and outside changes
quickly and / or dramatically i.e. if a cold
motorhome is heated quickly using the
heater or by the sun.
These drastic changes of temperature and the
moisture in the air both contribute towards the
temporary condensation that will normally
disappear as quickly as it appears.
This whole phenomenon is purely related to
ambient temperature changes of the motorhome
compared to the window cavities.
Condensation
Condensation occurs when warm moist air
meets a cold surface. The risk of condensation
therefore depends upon how moist the air is and
how cold the internal surfaces of the vehicle are.
Condensation is normally more noticeable during
the winter months as the motorhome is cold and
because skylights, windows and doors are
opened less meaning that the moist internal
air cannot escape.
How to try to minimise the likelihood of
condensation occurring
To try to minimise the risk of condensation
occurring it is important to try to maintain some
level of ventilation. Your vehicle complies with
EN721 which states the minimum requirements
for high and low level ventilation,
it is very important that these are not blocked
or reduced in any way.
Try to provide reasonable heating
If possible use the electric element of the space
heater when washing, cooking or drying damp
clothes, particularly if the windows show signs of
misting up.
Try to make sure all areas are at least partially
heated, condensation most often occurs in
unheated areas.
To prevent condensation the heat has to keep the
room surfaces reasonably warm.
It can take a long time for a cold motorhome to
warm up so it is better to have a small amount of
heat for a long period rather than a lot of
heat for a short time.
A motorhome that has been left unoccupied for
long periods of time can become very cold.
Whenever possible it is best to put the heating on
at a low level before setting off on a journey in the
winter to pre heat the vehicle.
Even in a well insulated motorhome with
correct ventilation it is likely during cold weather
if the temperature is less than 10˚C that
condensation will occur. Ideally the temperature
should be kept at about 20˚C although this is not
always possible.
General Care
Owners Handbook
General Care
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