R15 Batts Between 2x4@16 Wall Joists, Joist Thermal Shorts.ods

	A	B	C	D	E	F	G	H	I	J	K	L	M
1		R15	R15	R15	R15	R15	R15	R15	R15	R5	R1	R0.4	R0.004
2		Full Contact	1% Out Of Contact	5% Out Of Contact	10% Out Of Contact	20% Out Of Contact	30% Out Of Contact	70% Out Of Contact	100% Out Of Contact	Full Contact	Full Contact	Full Contact	Full Contact
3	Percent Insulation Decrepitude	0	1	5	10	20	30	70	100	0	0	0	0
4	Input Values
5	No-Coverage R-Value	0	0	0	0	0	0	0	0	0	0	0	0
6	Joists R-Value. 0.94 per inch	3.3	3.3	3.3	3.3	3.3	3.3	3.3	3.3	3.3	3.3	3.3	3.3
7	Batts R-Value	15	15	15	15	15	15	15	15	5	1	0.10	0.10
8
9	Area Fraction, Joists	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1
10	Area Fraction, Missing Insulation	0	0.009	0.045	0.09	0.18	0.27	0.63	0.9	0	0	0	0
11	Computed Area Fraction, Working Batts	0.9	0.891	0.855	0.81	0.72	0.63	0.27	0	0.9	0.9	0.9	0.9
12
13	Computed U-Values
14	Note: Each is 1/(R-value + 3)
15	U Joists	0.159	0.159	0.159	0.159	0.159	0.159	0.159	0.159	0.159	0.159	0.159	0.159
16	U missing insulation	0.333	0.333	0.333	0.333	0.333	0.333	0.333	0.333	0.333	0.333	0.333	0.333
17	U batts	0.056	0.056	0.056	0.056	0.056	0.056	0.056	0.056	0.125	0.250	0.323	0.323
18
19
20
21	Note: U eff is the sum of area fractions times computed U-values.
22	U eff	0.0659	0.0684	0.0784	0.0909	0.1159	0.1409	0.2409	0.3159	0.1284	0.2409	0.3062	0.3062
23	Note: R eff = 1/U eff, minus 3.
24	R eff	12.18	11.63	9.76	8.00	5.63	4.10	1.15	0.17	4.79	1.15	0.27	0.27
25
26	Sim, up to three components:
27	R1	0	0	0	0	0	0	0	0	0	0	0	0
28	%1	0	0.9	4.5	9	18	27	63	90	0	0	0	0
29	U1	0.000	2.250	11.250	22.500	45.000	67.500	157.500	225.000	0.000	0.000	0.000	0.000
30	R2	3.3	3.3	3.3	3.3	3.3	3.3	3.3	3.3	3.3	3.3	3.3	3.3
31	%2	10	10	10	10	10	10	10	10	10	10	10	10
32	U2	3.030	3.030	3.030	3.030	3.030	3.030	3.030	3.030	3.030	3.030	3.030	3.030
33	R3	15	15	15	15	15	15	15	15	5	1	0.4	0.004
34	%3	90	89.1	85.5	81	72	63	27	0	90	90	90	90
35	U3	6.000	5.940	5.700	5.400	4.800	4.200	1.800	0.000	18.000	90.000	225.000	22500.000
36
37	Sim U-Average	0.090	0.112	0.200	0.309	0.528	0.747	1.623	2.280	0.210	0.930	2.280	225.030
38	Sim R-Average	11.07	8.91	5.00	3.23	1.89	1.34	.62	.44	4.76	1.07	.44	.00
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100