NRCA’s Spanish Membership provides you with exclusive access to resources.

APA structural use panels over spaced board panels

To obtain a copy of a specific publication, users should contact the publication's publisher directly.

Abstract
When replacing roofing, it is often necessary to cvoer spaced boards with a solid roof deck. APA rated sheathing panels, which include plywood and oriented strand board, may be used for this purpose. When panels are attached over the spaced boards to the rafters or trusses, the resulting roof structure will have greater resistance to wind and seismic forces than the original spaced-board roof. The recommendations in this Techical Note are consistent with ASCE 7-02 and the 2003 IBC for wind uplift capacity for design wind sppeds up to 100 mph and a gable-end or hip roof with a 30-foot mean height with a slope between 2/12 and 12/12 at an inland location.
Date
1/2006
Author(s)
APA
Page(s)
7
Keyword(s)
APA bulletin; structural panel; spaced board; nail zone; panel spacing


Note: Documents in this section are provided as Adobe Acrobat PDF files. In order to print and view PDF files, the Adobe Acrobat Reader software/plugin, which runs on Microsoft Windows, Macintosh, OS/2 and various versions of UNIX, must be installed on your computer. Adobe Acrobat Reader is available for download as freeware from Adobe Acrobat's website. Please note that the resolution of on-screen versions is not as high as printed versions of PDF files.

Advertisement

Subscribe for Updates Join 25,000+ roofing professionals following NRCA

Subscribe to NRCA