Good maintenance of your windows can help to retain their shape and strength for many years. When the timber surface is to be cleaned, it is a good idea also to have a look for any small cracks and crevices in the paint surface. Especially the windows on the south and west-facing facades as these are the most exposed to the sun and weather. If the protective surface has cracks or fissures through to the wood, Rationel Windows recommends that you repair the damage immediately.
Generally, when the weather begins to discolour the paint on your windows and doors, it is time for maintenance. By opening the attached link here, you can see how to maintain timber windows and doors. If your windows are painted with a translucent colour, you will find instructions here.
Maintenance of timber / composite windows and doors (PATUS+ and ALDUS) is very limited. Wash the windows and doors outside a few times a year and that should do the trick.
You will primarily experience knot extraction on windows and doors delivered before June 2009. Since then, Rationel Windows have used finger-jointed timber on painted products. That means timber where the knots have been removed.
If the wood is not jointed, you will typically find resin extraction or yellow extract from knots. Wood is a living material therefore extraction may occur. The yellow spots can be corrected as follows:
Take a clean cloth soaked with ethanol and wipe lightly on the extraction. Rinse with clean water.
Resin that has crystallized can be removed with a stiff brush or scraped away. If the painted surface has been damaged in the process, sand the area with fine sandpaper and repaint with a soft brush or a smooth surface roller.
Dew on the outer side of the glass is a positive as this is proof that the window is very energy efficient, and that it functions properly.
In certain weather types, for example a clear frosty night, when there is large heat radiation from the earth towards the sky there may be periods in the early morning hours where the outer surface of a low-energy pane is colder than the air outside. This results in condensation on the glass surface. The dew disappears when the air temperature rises during the day.
If there is condensation on the inner side of the glass, you will need to ventilate the room. It is a sign of too high relative humidity inside and should be reduced to prevent rot, moisture damage and a poor indoor climate.
Dew between the two sheets of glass is a sign that the sealed glass unit is punctured and should be replaced. If you want to know more about misting and ventilation, click here.
If the sticker on the glass stays on too long there may be glue residue on the window. This is easily removed with toothpaste, lamp oil, cleansing cream for ceramic hobs and possibly a glass scraper.
It is possible to adjust virtually all types of Rationel windows and doors. You can see how here.
For the sealing of Rationel products we recommend those of the sealing branch recognized principles. Read more about sealing here.
When installing windows it is useful to separate the frame and sash. Read more about how to make the installation work easier.
Separation of the frame and sash
For advice and guidance on joining units in multiples click here.
Did you not find an answer to your question?
You are always welcome to contact Rationel Windows for advice and guidance.
