e.
The system shall resist the positive and negative loads specified
herein in accordance with "Sheet Building Sheathing Design Guide"
of the AA ADM1. Determine capacity in accordance with principles
of ASTM E 330 modified as follows:
(1) Test panels shall be production material of the type proposed
for use. Use either full length or partial length panels with
attachment representative of the main part of the roof.
(2) Test specimens shall be five panels wide, span one or more
supports, and shall have no end or edge attachment or seals that
will restrict crosswise movement of the panels under load. Do not
bridge longitudinal seams with tape or film that can restrict
separation.
(3)
Panels shall be tested to failure.
Report load at failure.
f.
Panels shall support walking loads without excessive distortion or
telegraphing of the structural supports. Panels shall support a
115 kilogram 250 pound load concentrated on a 2500 square
millimeter (mm) four square inch area at the center of the panel
without buckling or permanent distortion.
1.3.2
Performance Requirements
1.3.2.1
Wind Loads
**************************************************************************
NOTE: Determine the appropriate pressures, positive
and negative, that apply to the various portions of
the roof using current engineering technology that
takes into account the height, shape, and location
of the structure. See NAVFAC Military Handbook
MIL-HDBK-1002/2, "Structural Engineering-Loads," for
structural design and wind load information.
**************************************************************************
Resistance to wind uplift generated by winds of [200] [_____] km/h [124]
[_____] mph. The roof system and attachments shall resist the following
wind loads (kPa psf) with a factor of safety appropriate for the material
holding the anchor:
Positive
Negative
At eaves
[_____]
[_____]
At rakes
[_____]
[_____]
At ridge
[_____]
[_____]
At building corners
[_____]
[_____]
At central areas
[_____]
[_____]
1.3.2.2
Resistance to Water Infiltration
Roofing system shall show no infiltration at seams, edges, flashings,
counterflashings and penetrations when subjected to a rainfall of [125]
[_____] mm [5] [_____] inches per hour with [200] [_____] km/h [124]
SECTION 07612N
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