<1> For Each Layer: For each layer of material in the
cross-section, repeat <2>, <3>, and <4>. Start with the
layer closest to the attack side of the cross-section and
work toward the protected side. Proceed to <6> when
<2> Determine Layer Cost Factor. Enter the layer's
material type and thickness in the first available row
<1> For Each
under columns (b) and (c), respectively, of the Cross-
Section Cost Factor (CSCF) worksheet (see Appendix B
for all worksheets). Use the material type to select a
table from Table 28. Enter the table number in column
(d). Go to the appropriate table and obtain the layer
cost factor and weight using the layer's thickness. Enter
Layer Cost Factor
these values in columns (e) and (f), respectively. For
odd thicknesses of material, the analyst may interpolate
between two values or simply use the next larger size.
Proceed to <3>.
<3> Does Layer Have an Interlayer? If the current layer is
Layer Have an
bonded to a second layer on the current layer's
protected side, proceed to <4>. Otherwise, proceed to
<4> Determine Interlayer Cost Factor. Enter the interlayer
material type and thickness in columns (g) and (h),
respectively, of the CSCF worksheet. Use Table 33 and
Table 34 to obtain cost factors for PVB and urethane,
respectively. If the type of interlayer material is
unknown, use a cost factor of 4.1. Enter the interlayer
cost factor in column (i). Proceed to <5>.
<5> Calculate Combined Layer Cost Factor. Add
columns (e) and (i) and put their sum in column (j). If
column (i) is blank, put the value from column (e) in
column (j). Proceed to <1>.
<6> Calculate Cross-Section Weight. Sum weights in
column (f). Put the sum in field (k). Put the window
height and width in fields (l) and (m), respectively.
Calculate window area by multiplying fields (l) and (m)
together. Put the window area in field (n). Calculate the
cross-section weight by multiplying fields (k) and (n)
together. Put the cross-section weight in field (o).
Proceed to <7>.
<7> Calculate Cross-Section Material Cost Factor. Sum
cost factors in column (j). Put the sum in field (p).
Enter the number of windows in the facility in field (q).
Calculate the cross-section material cost factor by
multiplying fields (n), (p), and (q) together. Put this cost
factor in field (r). Return to Figure 35.
Process Chart and Description:
Cross-Section Material Cost Estimate Procedure
Cross-Section Cost Factor Table Selection