Dry a wall - the duration

Walls have to dry for different reasons. The length of time it takes for a wall to dry depends on a number of factors, and can range from a few hours to several years. Here are the key requirements for when to dry a wall and its duration.

Drying the wall does not dry right away

Drying with a wall is not the same drying. That depends largely on why a wall needs to dry. There are several causes here:

  • drying a wall after a new coat or between layers of paint
  • the drying of walls after filling or plastering
  • the drying of walls in new shell buildings
  • the drying of walls in the case of moisture damage (from rising damp to high water)

Wall coatings such as paints, plasters and fillers

The time to dry a wall after painting

The quickest way is to dry a newly painted wall. Normally, a few hours are enough before the next coat can be applied, if work is done in several layers and multicolored. When wallpapering, the drying times are similar. A wall should be dry after a few days.

The time to dry after filling or plastering

This is about the full-surface filling of a wall or the new plastering of a wall. In addition, it is necessary to differentiate during filling according to certain coating techniques. To mention here would be, for example, the marbling of a wall.

When marbling, primer and decorative spatula are applied in several steps. The drying time is about two to three hours, until the next leveling coat can be applied.

When filling and plastering walls, the rule of thumb is that 1 mm plaster or spatula means one day of drying time. Under normal circumstances (normal plaster thicknesses), the plaster should be dry after two weeks.

Duration of drying on wet or damp walls

Dry a shell

The situation is different with a new building. This is often the mistake that is not long enough to wait. Because walls are wet, so with mortar, bricked. Screed must also dry. This building moisture must be able to escape before the interior.

Therefore, the shell is traditionally started so that it can stand over the winter. The background is explained quickly. Cold air is very dry. If only warmer phases, the dry air is relatively easy to absorb water. In winter, a body shell dries relatively quickly. The duration should be a winter.

Drying of damp walls (rising, also high water)

Dehumidifying from a wall is challenging. So much so that the regulations have been tightened. Because even specialist companies neglect the drying of the masonry. If necessary, you should help with a radiant heater (UV) here. The drying time can easily be between 1 and 1.5 years depending on the degree of wetness.

Tips & Tricks

The information given here is only a rough guide. Depending on many factors such as building materials, location, building seal, degree of soaking, plaster and paint thickness, etc., the drying time may vary widely. In case of extreme wetting, there is an easy to perform test. Glue a piece of foil (10 x 10 cm) airtight on the wall. If condensation collects under the foil, the wall is still very wet.

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