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Free loft insulation- costing me more to keep house cool..


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You are correct. However, its a poor model for a house. A house contains appliances that generate heat. Windows where sun shines through and heats up the inside. The liquid in your flask doesn't generate heat. Our house is very warm upstairs in summer because that's where all our PCs are and any heat generated in the rooms below (wide screen tv and oven etc) rises through the uninsulated ceiling but hangs around on the second floor because it cannot easily escape the insulated layer above the ceiling i.e. the loft. So it is quite possible that his house is warmer in summer.

 

I own a shop with a flat above, the outside non cavity walls have insulated render and the insulation in the loft is 470mm thick as I had loads left over.

The flat is very warm in the hot weather due to the shop fridges generating heat that rises upto the flat that is well insulated. As you state the heat has nowhere to escape.....

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I own a shop with a flat above, the outside non cavity walls have insulated render and the insulation in the loft is 470mm thick as I had loads left over.

The flat is very warm in the hot weather due to the shop fridges generating heat that rises upto the flat that is well insulated. As you state the heat has nowhere to escape.....

 

Opening the windows will solve that problem.

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