Analysis Model of Cost-Effectiveness for Value Evaluation of Building Elements

Table 2

Performance criteria and scope of building elements.

Code	Item	Measurement method	Unit	Min (inferiority)			◂ Grade ▸			Max (superior)
P01	Reflectivity	Light reflectance	(%)	7	10	14	20	28	40	56
P02	Insulation	Heat Flow Resistance	m^2K/W	0.17	0.26	0.43	0.67	1.08	1.72	2.75
P03	Sound insulation	Transmission Loss	dB	12	20	28	36	44	52	60
P04	Impact sound insulation	Difference in sound Pressure level on the standard curve	dB	25	15	5	−5	−15	−25	−35
P05	Sound absorption	Sound absorption rate	(%)	20	30	40	50	60	70	80
P06	Waterproofing	Watertight pressure	Pa	98.0	156.8	245.0	392.0	617.4	980.0	1568.0
P07	Damp-proofing	Moisture resistance	m^2⋅d⋅mmAq/g	0.1	1	10	100	250	630	1000
P08	Air tightness	Airtight resistance	m^2⋅ h/m^3	0.015	0.06	0.25	1.0	4.0	15	60
P09	Inner pressure	Unit load	N/m^2	392.0	695.8	1225	2254	3920	9996	12250
P10	Impact resistance	Safety shock energy	N⋅cm	441	617.4	1568	3920	9996	24500	61740
P11	Compressibility resistance	Local compression load	N/cm^2	127.4	294	784	1960	4900	12250	29400
P12	Wear resistance	Wear amount	mm	3.2	1.8	1.0	0.56	0.32	0.18	0.1
P13	Fire resistance	Heating time	min	5	10	15	30	60	120	180
P14	Durability	Persisting period	Year	5	8	12	20	32	50	80