PorterSIPs
ALLOWABLE TRANSVERSE LOADS (PSF)
FOR TYPE A and TYPE C SANDWICH PANELS
|
Panel A is made of two equal layers
of 7/16" APA rated (24/16) OSB.
Panel C is made of a layer of 7/16"
OSB APA rated (24/16) and a layer of 19/32" plywood.
Each skin is rated
(24/16). Each type has a core of 0.95 pcf minimum density EPS foam
adhered to the sheathing with glue and set under pressure.
|
| |
SANDWICH PANEL DIMENSIONS |
|
Skin Thickness
Core Thickness
Panel Depth |
7/16"
3 5/8"
4 1/2" |
7/16"
5 5/8"
6 1/2" |
7/16"
7 3/8"
8 1/4" |
7/16"
9 3/8"
10 1/4" |
7/16"
11 3/8"
12 1/4" |
| Panel span between supports |
DEFL. LIMIT |
ALLOWABLE TRANSVERSE LOAD
FOR SIMPLE SUPPORTED ROOF PANELS
(DEAD + LIVE) psf |
|
7.5 ft |
L/180
L/240
L/360 |
62 s
52 d
35 d |
93 s
87 d
58 d |
119 s
118 d
79 d |
150 s
150 s
103 d |
181 s
181 s
128 d |
|
9.5 ft |
L/180
L/240
L/360 |
46 d
34 d
23 d |
73 s
60 d
40 d |
94 s
83 d
56 d |
118 s
111 d
74 d |
143 s
140 d
93 d |
|
11.5 ft |
L/180
L/240
L/360 |
32 d
24 d
16 d |
57 d
43 d
28 d |
78 s
61 d
41 d |
98 s
83 d
55 d |
118 s
105 d
70 d |
|
13.5 ft |
L/180
L/240
L/360 |
22 d
17 d
11 d |
42 d
31 d
21 d |
61 d
46 d
30 d |
83 s
63 d
42 d |
100 s
81 d
54 d |
|
15.5 ft |
L/180
L/240
L/360 |
16 d
12 d
8 d |
31 d
23 d
16 d |
46 d
35 d
23 d |
65 d
49 d
33 d |
83 m
64 d
42 d |
|
17.5 ft |
L/180
L/240
L/360 |
12 d
9 d
6 d |
24 d
18 d
12 d |
36 d
27 d
18 d |
51 d
38 d
26 d |
65 m
51 d
34 d |
|
19.5 ft |
L/180
L/240
L/360 |
9 d
7 d
5 d |
19 d
14 d
9 d |
28 d
21 d
14 d |
41 d
31 d
20 d |
53 m
41 d
27 d |
|
21.5 ft |
L/180
L/240
L/360 |
7 d
5 d
4 d |
15 d
11 d
7 d |
23 d
17 d
12 d |
33 d
25 d
16 d |
43 m
33 d
22 d |
|
23.5 ft |
L/180
L/240
L/360 |
6 d
4 d
3 d |
12 d
9 d
6 d |
18 d
14 d
9 d |
27 d
20 d
13 d |
36 m
27 d
18 d |
|
Notes:
1. Values
shown in tables are the allowable dead load plus live load.
2.
Controlling conditions: "s" shear, "m" moment, "d" deflection.
3. Minimum
bearing required is 3 inches.
4.
Deflection criteria is L/240 for roof loads.
5. All
loads are normal duration loads. No duration factors are allowed.
6. For
permanent or long-duration loads (>6 mos.) use 1/2 the tabulated
load values to minimize creep deflection.
Table TR-1 Transverse
Loads on Roof Sandwich Panels Updated
3/21/00 |
PorterSIPs
ALLOWABLE TRANSVERSE LOADS (PSF)
FOR TYPE A and TYPE C SANDWICH PANELS
|
Panel A is made of two equal layers
of 7/16" APA rated (24/16) OSB.
Panel C is made of a layer of 7/16"
OSB APA rated (24/16) and a layer of 19/32" plywood.
Each skin is rated
(24/16). Each type has a core of 0.95 pcf minimum density EPS foam
adhered to the sheathing with glue and set under pressure.
| |
SANDWICH PANEL
DIMENSIONS |
|
Skin Thickness
Core Thickness
Panel Depth |
7/16"
3 5/8"
4 1/2" |
7/16"
5 5/8"
6 1/2" |
7/16"
7 3/8"
8 1/4" |
7/16"
9 3/8"
10 1/4" |
7/16"
11 3/8"
12 1/4" |
| Panel span between
supports |
DEFL. LIMIT |
ALLOWABLE TRANSVERSE LOAD FOR
SIMPLE SUPPORTED ROOF PANELS WITH 4'
CANTILEVER
(DEAD + LIVE) psf |
|
7.5 ft |
L/180
L/240
L/360 |
48 s
48 s
48 s |
72 s
72 s
72 s |
93 s
93 s
93 s |
117 s
117 s
117 s |
141 s
141 s
141 s |
|
9.5 ft |
L/180
L/240
L/360 |
42 s
42 s
36 d |
62 s
62 s
62 d |
80 s
80 s
80 s |
101 s
101 s
101 s |
121 s
121 s
121 s |
|
11.5 ft |
L/180
L/240
L/360 |
36 s
32 d
21 d |
54 s
54 s
38 d |
69 s
69 s
54 d |
87 s
87 s
73 d |
105 s
105 s
93 d |
|
13.5 ft |
L/180
L/240
L/360 |
28 d
21 d
14 d |
47 s
39 d
26 d |
61 s
56 d
37 d |
77 s
77 s
51 d |
92 s
92 s
66 d |
|
15.5 ft |
L/180
L/240
L/360 |
19 d
14 d
10 d |
37 d
28 d
18 d |
54 s
41 d
27 d |
68 s
57 s
38 d |
82 s
74 s
49 d |
|
17.5 ft |
L/180
L/240
L/360 |
14 d
10 d
7 d |
27 d
20 d
14 d |
41 d
31 d
20 d |
58 s
43 d
29 d |
73 m
57 d
38 d |
|
19.5 ft |
L/180
L/240
L/360 |
10 d
8 d
5 d |
21 d
15 d
10 d |
31 d
23 d
16 d |
45 d
34 d
23 d |
57 m
45 d
30 d |
|
21.5 ft |
L/180
L/240
L/360 |
8 d
6 d
4 d |
16 d
12 d
8 d |
25 d
18 d
12 d |
36 d
27 d
18 d |
46 m
36 d
24 d |
|
23.5 ft |
L/180
L/240
L/360 |
6 d
5 d
3 d |
13 d
10 d
6 d |
20 d
15 d
10 d |
29 d
22 d
14 d |
38 m
29 d
20 d |
|
