Table 15.

Result summary & ANOVA table for relative water vapor permeability % (RWVP).

Variable	Type	Factor	Mean	Grouping			Source	Degrees of freedom	Adjusted Sum of Squares	Adjusted Mean Sum of Squares	F Value	P Value
RWVP%	Plain	Lower	10.12		A		Error	6	0.000004	0.00000
	Plain	Standard	11.41	C			Factor	2	0.000403	0.00014	742.04	0.000	S**
	Plain	Higher	11.82			B	Total	8	0.000742
	Rib 2 × 2	Lower	11.78	A			Error	6	0.000002	0.00003
	Rib 2 × 2	Standard	12.42			C	Factor	2	0.000486	0.00025	735.71	0.000	S**
	Rib 2 × 2	Higher	12.53		B		Total	8	0.000753
	Rib 1 × 3	Lower	12.04	A			Error	6	0.000002	0.00000
	Rib 1 × 3	Standard	12.21			C	Factor	2	0.000730	0.00070	4526.24	0.000	S**
	Rib 1 × 3	Higher	12.56		B		Total	8	0.000723

S**(Significant).