The thermal insulation a house can be exterior or interior, including the floor and ceiling. For increased efficiency, it must take into account the dew point. The materials insulating the house must be chosen according to the thermal conductivity and resistance, the ecological properties, the place where they are used and, of course, the price.
Thermal insulation is necessary because in most of the cases conventional building materials are not sufficient to guarantee the thermal comfort and air quality needed for indoor living. In the absence of thermal insulation we lose much of the amount of heat produced for heating the rooms, which is easy to observe in the cold season.
Adequate insulation will make the indoor environment more comfortable and the amount of energy used for heating will be lower. This is true for both autumn and winter when it comes to heating, but also for summer when it comes to cooling/ air conditioning.
If your existing insulation has deteriorated and is no longer playing its role as it should, you have to consider hiring Dexter MI roofing specialists to re-insulate your home. You can also do this if you want to invest in a more efficient insulation system than the existing one.