Generally, the heat in your house rises. This can mean that a lot of heat is lost through the roof. If you put insulation in your loft, the insulation is a poor conductor of heat so the heat stays below the loft and your loft is cold. Then less heat gets to the roof and so less heat is lost.
loft insulation stops heat being lost out of your roof
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The thicker the loft insulation the less heat escapes The thicker the loft insulation, the more trapped air there is which helps to keep heat in as air is a good insulator.
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Exactly what happened in the days when there was routinely no loft insulation, namely, people spent more on energy bills because they were losing heat through their lofts.
Loft insulation stops conduction and convection as the insulation which is inserted into the wall cavity prevents the particles of heat energy from traveling through the wall cavity, this stops conduction from taking place. Loft insulation also prevents convection as the cavity insulation stops the air particles from moving, therefore they cannot transfer heat and convection cannot take place.
There is loft insulation to keep in all the warm air from the heater
It's used to insulate your loft.
dependes what type of loft insulation you have
the loft insulation is bad in that house
With no loft insulation you would lose a lot of heat through your loft and be colder, and spend a lot more money on fuel to keep warm in winter.
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The thicker the loft insulation the less heat escapes The thicker the loft insulation, the more trapped air there is which helps to keep heat in as air is a good insulator.
conduction
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40%
Loft insulation is a relatively inexpensive and easy way to save on energy costs. The cost of insulation varies depending on the size of the loft area. Local insulating companies will come to your home and give you a free quote for your insulating needs.
The thicker the loft insulation the less heat escapes! The thicker the loft insulation is the more heat loss will be reduced as if it is thicker the more air is trapped between the layers of insulation and thermal energy cannot pass through trapped air causing it to not leave your home and therefore hating it