User guide

REV: 10/2014 IM-338-91 2014 © Bally Refrigerated Boxes, Inc. 1
INSTRUCTION MANUAL
Duro-Last Membrane Roof Installation
IM-338-91
Installing a Duro-Last Membrane Roof on Walk-Ins
Make absolutely no roof penetrations for plumbing, electricity, or other services. All
penetrations must go through the side walls.
Actual Size
Roof Material Size
Tabs
Dimension to
Chalk Line
Tabs from
Each End
Overhang
4”
5”
6”
4”
5”
6”
4”
5”
6”
*3'11"
5'0"
5'6"
5'6"
2
8½"
18"
18"
18"
6½"
12½"
12½"
*4’10½"
6'0"
6'6"
6'6"
2
21"
24"
24"
24"
6¾”
12¾”
12¾”
5'10"
7'0"
7'0"
7'6"
2
5"
15"
15"
18"
7"
7"
10"
6’9½”
8'0"
8'0"
8'6"
2
10¾”
21”
21”
24”
7¼”
7¼”
10¼”
7'9"
9'0"
9'0"
9'6"
2
16½"
27"
27"
30"
7½"
7½"
10½"
8’8½”
10'0"
10'0"
10'6"
2
22¼”
33"
33"
36"
7¾”
7¾”
10¾”
9'8"
11'0”
11'0”
11'0”
2
28"
39"
39"
39"
8"
8"
8"
10’7½”
12'0”
12'0”
12'0”
3
5¼”
16½"
16½"
16½"
8¼”
8¼”
8¼”
11'7"
13'0"
13'0"
13'0"
3
11"
22½"
22½"
22½"
8½"
8½"
8½"
12’6½”
14'0”
14'0”
14'0”
3
16¾”
28½"
28½"
28½"
8¾”
8¾”
8¾”
13'6"
14'6"
15'0”
15'0”
3
22½"
31½"
34½"
34½"
6"
9"
9"
14’5½”
15'6"
16'0”
16'0”
4
28¼”
37½"
40½"
40½"
6¼”
9¼”
9¼”
15'5"
16'6"
17'0”
17'0”
4
5½"
15"
18"
18"
6½"
9½"
9½"
16’4½”
17'6"
18'0”
18'0”
4
11¼”
21"
24"
24"
6¾”
9¾”
9¾”
17'4"
18'6"
18'6"
19'0”
4
17"
27"
27"
30"
7"
7"
10"
18’3½”
19'6"
19'6"
20'0”
4
22¾”
33”
33”
36”
7¼”
7¼”
10¼”
19'3"
20'6"
20'6"
21'0”
4
28½"
39"
39"
42"
7½"
7½"
10½"
20’2½”
21'6"
21'6"
22'0”
5
5¾”
16½"
16½"
19½"
7¾”
7¾”
10¾”
21'2"
22'6"
22'6"
22'6"
5
11½"
22½"
22½"
22½"
8"
8"
8"
22’1½”
23'6"
23'6"
23'6"
5
17¼”
28½"
28½"
28½"
8¼”
8¼”
8¼”
23'1"
24'6"
24'6"
24'6"
5
23"
34½"
34½"
34½"
8½"
8½"
8½"
20’½”
25'6"
25'6"
25'6"
5
28¾”
40½"
40½"
40½"
8¾”
8¾”
8¾”
25'0"
26'6"
26'6"
26'6"
6
6"
18"
18"
18"
9”
9”
9”
25’11½”
27'6"
27'6"
27'6"
6
11¾”
24”
24”
24”
9¼”
9¼”
9¼”
26'11"
28’0"
28’6"
28’6"
6
17½"
27"
30"
30"
6½"
9½"
9½"
27’10½”
29’0"
29’0"
29’6"
6
23¼”
33”
36”
36”
6¾”
9¾”
9¾”
28'10"
30'0"
30'0"
30'6"
6
29"
39"
39"
42"
7"
7"
10"
* Do not run tabs in this direction unless absolutely necessary