Metal Sales Delta Rib Manual - Manual (Page 8)

PDR-8
DELTA RIB
© Metal Sales Manufacturing Corporation/ Subject to change without notice/ Effective Date 9/11
800.406.7387 (Corporate Office) • www.metalsales.us.com
D
esign
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nsTallaTion
C
onsiDeraTions
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.)
FASTENING PATTERN
Typical Screw Fastening Pattern
Typical Nail Fastening Pattern
Tape Sealant
(roof only)
1 /
4
"-14 x 7 /
8
" Stitch Screw
(1'-0" o.c.)
#10 x 1" Woodscrew
Whether over solid substrate or open structural framing, panel distortion may occur if not applied over properly aligned and
uniform substructure.
The installer should check the roof deck for squareness before installing Delta Rib Panels. Several methods can be used to verify
squareness of the structure for proper installation of the panels.
METHOD "A" - One method for checking the roof for squareness is to measure diagonally across one slope of the roof from
similar points at the ridge and eave and obtain the same dimension.
METHOD "B" - The 3-4-5 triangle system may also be used. To use this system measure a point from the corner along the edge
of the roof at a module of three (3). Measure a point from the same corner along another edge at a module of four (4). Then by
measuring diagonally between the two points established, the dimension should be exactly a module of five (5) to have a square
corner. Multiple uses of this system may be required to determine building squareness. If the endwall cannot be made square, the
roof system cannot be installed as shown in these instructions.
CONDITION OF SUBSTRUCTURE
METHOD A
METHOD B
4
30
30
3
5
Note: Fastening patterns should be checked to meet applicable loading conditions.