Control of indoor air humidity is key to the healthiness of buildings. Even if at first glance we can not perceive the amount of water vapour that is present in the room, on average a person perspires between 3 and 5 litres of water vapour per day.

A thermal insulation material is, generally speaking, a material used in construction and other industries to improve the thermal behavior of building envelopes. All the materials used in the building sector have a higher or lower resistance to thermal transmittance.

Choosing the right insulation materials for a façade is one of the most important decisions when designing a building, since the building's energy efficiency and the comfort of its occupants will depend on this choice to a great extent. 

The key basis for polyurethane systems´ practicality to the building sector, is their excellent performance as thermal insulation, providing energy efficiency and interior comfort to buildings. 

Polyurethane systems are the result of the reaction between two chemical components, isocyanate and polyol. The best known applications of polyurethane are by projection (Sprayed Polyurethane Foam) andby injection, the one that concerns us in this article. 

Floors are some of the elements of an envelope that must be taken into account when it comes to insulating acoustically a room, which is usually delimited by two of them: the upper and the lower floor. Sprayed polyurethane systems are an optimal material to insulate...