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10 cards from this deck
Rate of heat transfer through building material
W/m²K (watts per square metre per Kelvin)
Better insulation performance
0.21
1.6
kWh/m²/yr
10 years
U=1RTU = \frac{1}{R_T}U=RT1
R=TkR = \frac{T}{k}R=kT where T=thickness, k=conductivity
Air cavities, insulation, thickness, high-resistance materials
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