the thickness of loft insulation use to be 25mm but it changed to 270mm in 2011,
But why?
please can you include:
-payback time
-U values
-heat transfer figures ( e.g. about heat loss through the roof)
-methods of heat transfer
Pleasseee help x_x
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the thickness of loft insulation use to be 25mm but it changed to 270mm in 2011,
But why?
please can you include:
-payback time
-U values
-heat transfer figures ( e.g. about heat loss through the roof)
-methods of heat transfer
Pleasseee help x_x
Is this someone from my class? Haha I need to know too O.O
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