Insulating plaster in Hamburg – for interior walls and facades

When insulating plaster makes sense

• Older and existing facades whose appearance should largely be preserved
• Uneven or mixed masonry where insulation boards are hard to fix
• Interior insulation of external walls, e.g. where the facade may not be altered
• Reveals, plinths and junctions with little space
• Better thermal protection and warmer wall surfaces

Insulating plaster outside

On the facade, insulating plaster is machine-applied in a thicker layer and then protected with reinforcement and a finishing render. The build-up – substrate preparation, layer thickness, reinforcement and finish – follows the manufacturer's system and the condition of the masonry.

Per centimetre it insulates less than an ETICS, but it is jointless, mineral and follows any wall shape. We advise which system suits your building.

Insulating plaster inside

Inside, insulating plaster is mainly used to insulate external walls from the inside and raise wall surface temperatures. Capillary-active mineral plasters can absorb and release moisture. A building-physics check of the wall and clean junctions to ceilings, windows and adjoining walls are essential. More on plaster types under Interior plaster.

Process

1. Assess the substrate – load-bearing capacity, moisture and evenness
2. Prepare – clean, remove old render, bonding coat or spatter dash
3. Apply insulating plaster – by machine, in the specified thickness and with drying times
4. Reinforcement and finish – weather protection outside, smooth or textured surface inside
5. Paint – vapour-permeable, e.g. silicate paint, see Facade painting

Frequently asked questions