Wall preparation
Edges and joints: where cracks appear
The main surface of a wall is quickly filled. But quality is often decided at the edges: the transition to the ceiling, the window reveal, the join with the door frame. That is exactly where most cracks appear later.
Typical joints
Wherever two different building elements meet, the materials move slightly differently: wall and ceiling, masonry and window frame, plaster and wooden door frame. Rigid filler cracks at these points over time.
- Wall-to-ceiling transition
- Window reveals and sills
- Door frames and skirting boards
- Corners on dry lining and plasterboard
The right material for joints
For certain interior joints, paintable acrylic sealants are an option. Whether they are suitable depends, among other things, on the expected movement and the substrate. The manufacturer’s instructions on application and paintability must be followed.
Silicone is mainly used for suitable joints in bathrooms and other wet areas. Conventional silicone generally cannot be painted over. For joints that are to be painted afterwards, a system suited to the substrate and the joint movement must therefore be chosen.
Clean edges
At the ceiling, a fine cut is often made in the fresh material: a separating joint that stops a crack from running uncontrolled across the surface.
Outside corners are reinforced with corner beads so that they do not chip at the first knock. That is particularly sensible in hallways and doorways.
Related service
Wall filling & preparation in Riesa
Would you rather have it done for you? We carry out the work in Riesa and the surrounding area. Send us a few photos and your preferred date, and you will receive a quote.