OSB stands for____________________________
A 2004 Consortium for Research on Renewable Industrial Materials (CORRIM) study gave scientific validations to the strength of wood as a green building product. CORRIM found that wood was better for the environment than steel or concrete in terms of _____________________________
According to a 1987 study, wood products made up 47 percent of all industrial raw materials manufactured in the United States, yet consumed only ____ percent of the energy needed to manufacture all industrial raw materials.
For every ton of wood grown, a young forest produces 1.07 tons of oxygen and absorbs ____ tons of carbon dioxide.
_______ percent of a log can be used to make high quality structural panels.
Frequently OSB panels are textured or splatter-coated on one side to increase traction on the panel surface. This textured or coated side should be placed "up" on roofs, to provide better footing for workers.
OSB has been laboratory tested and used in the field for nearly ____ decade/s and have proven that it is an excellent performer.
Note that approvals by national approval organizations such as NES, ICBO, ICC, etc., would be generally accepted by Wisconsin code officials, unless the applicable code sections have been amended by our state. Most North American OSB panels are manufactured in accordance with _____________
Panel applications described in PS 2 and APA-PRP-108 include floors, walls, and roofs
PS 2 is recognized in the_______________________
PRP-108 is part of the recognition in ICC Evaluation Service Report ESR-2586
A performance standard sets performance requirements for a product based on that products' ____________
The basic criteria for qualifying OSB products under the performance standard is__________________
Most OSB panel manufacturers make oversized panels. The biggest panels are
APA Performance Rated OSB panels have a designated exposure classification. Panels rated "___________" have a fully waterproof bond and are designed for applications subject to permanent exposure to the weather or to moisture.
" __________" OSB panels have a fully waterproof bond and are designed for applications where long construction delays maybe expected prior to providing protection.
APA Rated Sheathing/Ceiling Deck can be made using OSB
Common thicknesses of OSB sheathing panels are______________
When OSB Rated Sturdi-Floor is used, it is intended to be a single-layer flooring under carpet and pad
Common thicknesses for OSB flooring panels are________________
OSB panels require a special rating for use in industrial applications
The Span Ratings on the trademarks on Performance Rated Panels denote the ________ permitted center to center spacing of supports in inches, over which the panels should be installed in normal construction.
For APA Rated Sheathing, the Span Rating applies when the long panel dimension is across supports unless the strength axis is otherwise identified
The Span Rating for APA Rated _______ Panels is for vertical installation
For APA Rated Sheathing the Span Rating looks like a fraction such as 32/16.The left hand number denotes the maximum spacing of supports (in inches), when the panel is used for __________________.
For APA Rated Sheathing the Span Rating looks like a fraction such as 32/16.The right hand number denotes the maximum on center spacing of supports (in inches), when the panel is used for __________________.
Sheathing panels with roof Span Ratings of ____ or greater may be used vertically or horizontally as wall sheathing over studs at 24 inches on center (o.c.)
Sheathing panels with roof Span Ratings of less than 24 may be used vertically or horizontally as wall sheathing over studs at ____ inches on center (o.c.)
APA Rated Sheathing made specifically for use as wall sheathing are identified with Span ratings of __________________.
APA Rated Sturdi-Floor panels are manufactured with Span Ratings of ____________
APA Rated lap siding panels may not be applied directly over studs without sheathing between the studs and the siding
Building precisely at Span ratings will _______ code requirements.
Allowable uniformly distributed live load at maximum span (except for 48" span) for APA Rated Sturdi-Floor is ____ psf live load for floors.
Allowable uniformly distributed live loads at actual spans for APA Rated Sturdi-Floor can be found in __________
If you find OSB panels with markings such as 1F, 2F, 1R, 2R or W, the panels may have been designated for use in____________________
OSB has specific handling requirements above and beyond the way plywood is handled
When storing OSB panels outside, if moisture absorption is expected, you should cut the steel bands on the bundles.
When storing OSB panels outside, you should ____________________________
When specyfying APA trademarked engineered wood products, you can be sure the glues used in their manufacture are the best available but may have high formaldehyde emissions.
More information on OSB panels can be found at _________________________