What are the insulating varnishes: a guide on the technical characteristics and operation
Many companies offer special insulating coatings or additives to be mixed with more conventional paints promising miraculous results in terms of energy savings. They argue that the application of these paints on the walls of the building to ensure a 25% reduction in heating costs and even 40% savings on summer cooling.
To make it more convincing often use words like secret ingredients, nanotechnology and ceramic powders. But is it true? It 'really possible with a simple coat of paint and what is special, earn one or two Class Energy Efficiency?