An uninsulated brick wall		Thickness	Conductivity	Resistance
		mm	W m-1 K-1	m2 K W-1
Layer 1	Outside thermal resistance			0.04
Layer 2	Single brick	115	0.77	0.15
Layer 3	No air gap - solid wall air gap - cavity wall single brick			0.00
Layer 4	Single brick	115	0.77	0.15
Layer 5	Dense plaster	13	0.57	0.02
Layer 6	Inside thermal resistance			0.13
		Total resistance		0.49
		U-value (W m-2 K-1)		2.03