Keystone RV Camper User Manual
Chapter 2: Effects of Prolonged
Occupancy
Your recreational vehicle was designed primarily for recreational use and
short-term occupancy. If you expect to occupy the coach for an extended
period, be prepared to deal with condensation and the humid conditions
that may be encountered. The relatively small volume and tight compact
construction of modern recreational vehicles means that the normal living
activities of even a few occupants will lead to rapid moisture saturation of
the air contained in the fth-wheel and the appearance of visible moisture,
especially in cold weather.
Just as moisture collects on the outside of a glass of cold water during
humid weather, moisture can condense on the inside surfaces of the
recreational vehicle during cold weather when relative humidity of the
interior air is high. This condition is increased because the insulated walls
of a recreational vehicle are much thinner than house walls. Estimates
indicate that a family of four can vaporize up to three gallons of water daily
through breathing, cooking, bathing and washing.
Unless the water vapor is carried outside by ventilation or condensed by
a dehumidier, it will condense on the inside of the windows and walls as
moisture or in cold weather as frost or ice. It may also condense out of
sight within the walls or the ceiling where it will manifest itself as warped
or stained panels. Appearance of these conditions may indicate a serious
condensation problem. When you recognize the signs of excessive
moisture and condensation in the coach, action should be taken to
minimize their effects.
Chapter 2: Effects of Prolonged Occupancy
To Avoid Condensation Problems, Follow
These Tips
• Allow excess moisture to escape to the outside when bathing,
washing dishes, hair- drying, laundering and using appliances and
non-vented gas burners.
• Always use the vent hood when cooking.
• Keep the bathroom door closed and the vent or window open
when bathing and for a period of time after you have nished.
• Do not hang wet clothes in the coach to dry.
• In hot weather, start the air conditioner early as it removes excess
humidity from the air while lowering the temperature.
• Keep the temperature as reasonably cool during cold weather
as possible. The warmer the vehicle the more cold exterior
temperatures and warm interior temperatures will collide on wall
surfaces creating condensation.
• Use a fan to keep air circulating inside the vehicle so
condensation and mildew cannot form in dead air spaces. Allow
air to circulate inside closets and cabinets (leave doors partially
open). Please keep in mind that a closed cabinet full of stored
goods prevents circulation and allows the exterior temperature to
cause condensation.
• The natural tendency would be to close the vehicle tightly during
cold weather. This will actually compound the problem. Simply
put, you need to remove some of the warm air and allow some
cool outside air to get inside the vehicle so the furnace will not
recycle the humid interior air.
• Use uorescent ceiling lights and minimize prolonged use of
incandescent lights, which produce heat and contribute to
condensation in the roof above the ceiling lights.
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Chapter 2: Effects of Prolonged Occupancy
Note
Note
About Molds
What are molds?
Molds are microscopic organisms that naturally occur in virtually every
environment, indoors and out. Outdoors, mold growth is important in
the decomposition of plants. Indoors, mold growth is unfavorable. Left
unchecked, molds break down natural materials such as wood products
and fabrics. Knowing the potential risks is important for any type of
consumer to protect their investment.
What factors contribute to mold growth?
For mold growth to occur, temperatures indoors or outdoors must be
between 40 degrees and 100 degrees Fahrenheit and there must be a
source of moisture such as humidity, standing water, damp materials, etc.
Indoors, the most rapid growth occurs with warm and humid conditions.
How can mold growth be inhibited?
By controlling relative humidity, the growth of mold and mildew can be
inhibited. In warm climates, use of the air conditioner will reduce the
relative humidity. Vents are located in the bathing and cooking areas and
constant use is advised during food preparation and bathing even during
colder weather. Additionally, opening a window during these activities will
assist in ventilation. In extremely humid conditions, using a dehumidier
can be helpful.
Remember, your trailer is not
designed, nor intended, for
permanent housing. Use of
this product for long-term or
permanent occupancy may
lead to premature deterioration
of structure, interior nishes,
fabrics, carpeting and drapes.
Damage or deterioration due to
long-term occupancy may not
be considered normal and may,
under the terms of the warranty,
constitute misuse, abuse or
neglect and may therefore
reduce the warranty protection.
Further Information About Molds
Frequent use of your coach and maintaining its cleanliness are important
preventive measures. Further, any spills should be wiped up quickly and
dried as soon as possible. Avoid leaving damp items lying about. On safe
surfaces, use mold or mildew-killing cleaning products. Check sealants
regularly and reseal when necessary to avoid water leaks. Proper
preventive maintenance to the RV and its accessories, as described
both in this manual and in accompanying literature, will provide the best
protection for your unit.
If using a dehumidier,
please read and follow all
manufacturer instructions and
recommendations for use and
cleaning.
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