Profile Application (Note 1) Fastener Location, Panel to Sructure Side Lap Fasteners Sealants Side & End Laps Min Side Lap Min End Lap
2.76 Corrugated Roofing (Slope 3/12)
 Every third high rib 18" on center Butyl lap tape 1 rib 6"
Siding Every third high rib 18" on center Not required (U.N.O.) (Note 5) 1 rib 4"
4.2 Corrugated Roofing (Slope 3/12)
 Every other high rib 18" on center Butyl lap tape 1 rib 6"
Siding Every other low rib 18" on center Not required (U.N.O.) 1 rib 4"
4 3/16 Rib, 4.0 Rib,
4 7/8 V-Beam (Note 3) 		Roofing (Slope 3/12)
 Every other low rib 18" on center Butyl lap tape 1 rib 6"
Siding Every other low rib 18" on center Not required (U.N.O.) 1 rib 4"
7.0 Rib, 7.2 x 1.5 Rib, 7.2D x 1.75 Rib, 5.33 V.Beam Roofing (Slope 3/12)
 Every low rib 18" on center Butyl lap tape 1 rib 6"
Siding Every low rib 18" on center Not required (U.N.O.) 1 rib 4"
R-Panel, Trafford Tile Roofing (Slope 3/12)
 One on each side of every high rib 18" on center Butyl lap tape 1 rib 6"
Siding 18" on center Not required (U.N.O.) 1 rib 4"
Flashing All
 See note 6 Butyl lap tape where required See note 4
6.5 Series 500 Roof Deck Every low corrugation 18" on center (note 8) Not required (U.N.O.) Side nest Butt
8.0 Series 700 (note 7) Roof Deck Every low corrugation 24" on center (note 8) Not required (U.N.O.) Side nest Butt
Notes:
1. Slopes shown above are for 3/12 or greater. For slopes less than 3/12, fasten side laps at 12" o.c.
2. Std. 0.729" dia. sealing washer required typical, U.N.O.
3. Use 5/8" dia. washer for 4 7/8 V-Beam only.
4. End lap ridge and corner flashing 4" U.N.O. Butt ends of other flashing, U.N.O.
5. U.N.O. = Unless noted otherwise in specs, notes, or drawings.
6. Fasten to panels at every 3rd rib for 4.2, every other rib for 7.0, 7.2, 7.2D, or 12" o.c.
7. TS 700, 11/8" washer required.
8. Contact engineering department if diaphragm action is needed.

FASTENERS AND SEALANTS

Type "A" point for fastening to wood structure or Tuff Span structural members (add 1/2" to the given length).

Type "B" point for fastening to steel structures up to 3/8" in thickness

Note: Type "A" and "B" screws are available in 305 and 316 stainless steel and Monel. SFS screws are available in 304ss only. Washers (min. 0.729" dia.) are required with all fasteners. See chart above.

 
Stainless Steel Grommets:
Side Lap and FRP Flashing Fastening

The SB2 grommet is recommended for side lap and flashing. The SB2 should be tightened until the flexible neoprene grommet sleeve bulges out and tightly grips the FRP material.

The recommended side lap fastening is 18" on center minimum for roof installations with a pitch of 3 on 12 or more. For roofs with lesser slopes, the side laps should be fastened at 12" on center minimum.
 
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