PorterSIPs
ALLOWABLE RACKING (PLF)
FOR TYPE A and TYPE C SANDWICH PANELS
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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.
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|
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SANDWICH PANEL DIMENSIONS |
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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 RACKING LOAD FOR
PANELS WITH DIMENSIONAL LUMBER SPLINE (plf)
|
|
8 ft |
1/8" |
130 |
130 |
130 |
130 |
130 |
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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 RACKING LOAD FOR
PANELS WITH 5/8" x 3 7/8" OSB SPLINE (plf)
|
|
8 ft |
1/8" |
180 |
180 |
180 |
180 |
180 |
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Notes:
1. The panels using the dimensional lumber center spline will have
lumber
along the top and bottom and both ends, along with the center spline.
The
panels will connected to the lumber with a minimum 8d nail at 6" on
center.
2. The panels using the OSB center spline will have lumber along the top
and
bottom and both ends. The panels will be attached with a minimum 8d nail
at 6" on center.
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Table R-1
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Racking Loads on Roof Sandwich Panels
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Updated
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11/29/99
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