The energy transition is in full swing. More and more people realise that their homes have a major impact on their energy consumption and CO2 emissions. Post-insulation is one of the most effective ways to make your home more sustainable. In this blog, we discuss the benefits of post-insulation, the points of interest and the role of KEIM Netherlands and Isolatie.com in the sustainability process.

Why post-insulation?
The benefits of post-insulation are numerous:
- More comfortable indoor climate: Post-insulation ensures an even temperature in your home, reducing cold bridges and draughts. It will be comfortably warm in winter and stay cooler for longer in summer.
- Lower energy bill: Post-insulation means your home loses less heat. This can reduce your energy bill by up to 30%.
- Reduced CO2 emissions: Post-insulation is a sustainable measure that reduces your CO2 emissions. This is good for the environment and helps combat climate change.
- Increase the value of your house: A well-insulated house is worth more than one that is not insulated.
Post-insulation: points of attention 
Post-insulation is a major job that needs to be done professionally. There are a number of issues you need to consider:
- Building physics: Post-insulation can change the building physics of your home. This means there are a number of things you need to consider, such as dew point and ventilation.
- Choice of materials: There are different materials available for post-insulation. It is important to choose materials that are vapour-permeable so that moisture can escape from the structure.
- Quality of execution: Post-insulation should be done professionally to avoid moisture problems.

Vapour-permeable materials: crucial for post-insulation 
To prevent moisture problems, it is important to use vapour-permeable materials during post-insulation. Vapour permeable materials allow moisture to escape from the construction, preventing condensation and mould on the inside and moisture damage to the exterior paint system.

Consequences of not vapour-opening construction 
Failure to use vapour-permeable materials in post-insulation can lead to a number of serious problems:
- Moisture problems: Moisture can accumulate in the structure, leading to moisture penetration in internal walls and wood rot in window frames.
- Deterioration of indoor climate: Moisture problems can lead to a musty and unpleasant indoor climate due to constant excessive humidity and mould growth. 
- Reduced energy efficiency: Moisture problems can reduce the insulation value of your home, causing you to use more energy.
- Damage to construction: As moisture builds up in the external wall, damage to the construction can occur, for example through frost damage in the masonry. Damage can also occur to the paint system, e.g. blisters and blisters.  

KEIM: the perfect finish for post-insulation 
KEIM Netherlands is a specialist in mineral paints. Mineral paints are vapour-permeable and highly resistant to weathering and UV radiation. This makes them the perfect finish for your home after post-insulation.
 The advantages of KEIM mineral paints: 
- Vapour-permeable: Moisture from the construction can escape, preventing moisture problems.
- Excellent weather resistance: Mineral paints are highly resistant to rain, wind and sun.
- Long service life: Mineral paints last much longer than traditional paints.
- Environmentally friendly: Mineral paints are made of natural materials and contain no harmful substances. KEIM paints have a Cradle-to-Cradle certificate as well as a Natureplus certificate.  

Are there actually any risks?
Even if you choose Isolatie.com's specialist approach and KEIM's quality, there are still potential risks. This is because with post-insulation, the dew point moves from the cavity to the external wall, causing moisture to precipitate in a part of the masonry where it never did before. There is then a possibility that the external wall contains dyes or salts that dissolve in the precipitated moisture. As the moisture evaporates, these dissolved substances move to the surface of the stone. In some situations, this can lead to a discolouration or superficial damage caused by salt deposits. 
In most cases, this discolouration goes away by itself by being washed out with rainfall or by bleaching under the influence of sunlight. In a few cases, post-treatment is required. 

Cooperation between KEIM Netherlands and Isolatie.com 
KEIM Netherlands and Isolatie.com work together to offer you a total solution for post-insulation. Isolatie.com provides expert insulation of your home, while KEIM Netherlands ensures a beautiful and durable finish with a vapour-permeable mineral paint system.
Post-insulation is a worthwhile investment that saves you money, makes your home more comfortable and increases the value of your home. KEIM Netherlands and Isolatie.com are happy to help you make your home more sustainable and beautiful!