Table 3.

Average effective thermal conductivity coefficient of the building fasteners.

Fastener no	Description	Effective thermal conductivity coefficient The average of all values in measurement series (W m−1 K−1)	Absolute standard uncertainty (W m−1 K−1)	Relative combined standard uncertainty (%)
1	Stainless steel fastener, δf = 2 mm	3.97	± 0.05	1.13
2	Stainless steel fastener, δf = 3 mm	4.85	± 0.08	1.57
3	Stainless steel fastener, δf = 3 mm with 5 holes	4.26	± 0.06	1.39
4	Aluminum alloy fastener, δf = 2.75 mm	15.68	± 0.46	2.91
5	Aluminum alloy fastener, δf = 4 mm	21.04	± 0.68	3.23