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Wall Selection
|
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Costs
STEP 2: View the material cost evaluation of each system (based on average retail prices in Montreal, Canada in January 2001):
WALL
SYSTEM
|
SP
|
HP
|
E5P
|
Exterior sheating
|
7/16"
Sheating
|
HP
|
EXCEL 1/2"
|
Interior
assembly
|
Poly/Gypsum
|
|
|
|
|
Exterior
air film
|
n.a.
|
n.a.
|
n.a.
|
Exterior
cladding
|
n.a.
|
n.a.
|
n.a.
|
Strapping/
air (brick)
|
n.a.
|
n.a.
|
n.a.
|
Air barrier
|
76
|
76
|
0
|
Nails
|
10
|
10
|
10
|
Exterior
sheating
|
176
|
216
|
329
|
Bracing
|
0
|
0
|
0
|
2X6 24cc
|
376
|
376
|
376
|
Fiberglass
|
352
|
352
|
352
|
Interior
sheating
|
0
|
0
|
0
|
Vapour
barrier
|
36
|
36
|
36
|
Air
(strapping)
|
0
|
0
|
0
|
Gypsum
|
240
|
240
|
240
|
Interior
air film
|
n.a.
|
n.a.
|
n.a.
|
|
|
|
|
Cost 900
sqft(24cc)
|
1266
|
1306
|
1343
|
Cost at
16 "cc
|
1378
|
1418
|
1455
|
R Cavity
|
24.06
|
24.26
|
24.26
|
R Effective
24 "cc
|
21.37
|
21.59
|
21.29
|
WALL
SYSTEM
|
SE
|
HE
|
E5E
|
|
|
Exterior
sheating
|
7/16"
Sheating
|
H.P.
|
EXCEL 1/2"
|
Polystyrene
1 "
|
OSB 7/16"
|
Interior
assembly
|
ENERMAX
|
Poly/Gypsum
|
|
|
|
|
|
|
Exterior
air film
|
n.a.
|
n.a.
|
n.a.
|
n.a.
|
n.a.
|
Exterior
cladding
|
n.a.
|
n.a.
|
n.a.
|
n.a.
|
n.a.
|
Strapping/
air (brick)
|
n.a.
|
n.a.
|
n.a.
|
n.a.
|
n.a.
|
Air barrier
|
76
|
76
|
0
|
76
|
76
|
Nails
|
10
|
10
|
10
|
40
|
10
|
Exterior
sheating
|
176
|
216
|
329
|
338
|
425
|
Bracing
|
0
|
0
|
0
|
45
|
0
|
2X6 24cc
|
376
|
376
|
376
|
376
|
376
|
Fiberglass
|
352
|
352
|
352
|
352
|
352
|
Interior
sheating
|
249
|
249
|
249
|
0
|
0
|
Vapour
barrier
|
0
|
0
|
0
|
36
|
36
|
Air
(strapping)
|
44
|
44
|
44
|
0
|
0
|
Gypsum
|
240
|
240
|
240
|
240
|
240
|
Interior
air film
|
n.a.
|
n.a.
|
n.a.
|
n.a.
|
n.a.
|
|
|
|
|
|
|
Cost 900
sqft(24cc)
|
1523
|
1563
|
1600
|
1503
|
1515
|
Cost at
16 "cc
|
1635
|
1675
|
1712
|
1615
|
1627
|
R Cavity
|
28.76
|
28.96
|
28.96
|
27.76
|
23.33
|
R Effective
24 "cc
|
26.41
|
26.62
|
26.62
|
25.36
|
20.546
|
Go on to STEP 3: Wall Selector
|
