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Protect the surface of FRP materials from cuts, scratches, gouges, abrasions, and impacts. Do not use wire slings unless material is fully protected. Use spreader bars when lifting FRP.
Store panels with one end elevated; do not store flat. Water should drain off freely from stored panels. Keep panels covered; do not stack or store other materials on top of panels. Store panels off the ground; allow for ventilation.
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Mark and drill pilot holes for side lap fasteners in overlapped pieces. Apply sealant tape or caulk to areas where specified. A continuous bead of sealant tape must be applied between side and end laps on roofing installations.
Cut panels as required for bevels, penetrations, etc. Position panels and drill them for attachment to support members.
Fasten panel to support with proper fasteners and sealing washers. Special care may be required to correctly install stainless steel or Monel fasteners. Review the Tuff Span detailed Installation Instructions for instructions for installing stainless steel and Monel fasteners.
Install side lap fasteners. Space as recommended in Guide or as specified on the drawings.
Locate and install flashing and filler strips. Filler strips must be secured with either fasteners or caulk
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Tuff Span cannot be reshaped by the application of external force (hammering or extreme bending).
When drilling panels for attachment to support member, holes should be no less than 11/2 inches from the edge of the panel. Use sharp high speed or carbide tipped drill bits under moderate pressure. Fastener holes drilled in panels should just clear the screw threads. (Note: Predrilling not required when you use the SFS fastener.)
Most common solvents may be used for clean-up of spills or stains on Tuff Span panels Solvents such as acetone may remove the acrylic polymer coating on some panels. Use cleaning solvents sparingly and only when absolutely necessary.
Minor damage to panels or flashing may be patched using a Tuff Span FRP repair kit. Materials suffering damage to panels or flashing may be patched using a Tuff Span FRP repair kit. Materials suffering damage other than very minor damage should be replaced.
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| Structural Fastener | Member Gauge | Drill Bit Size |
| #14 Type "B" | 14 up to 10 ga. | No. 8 |
| 10 ga. up to 3/16" | No. 4 | |
| 3/16" to 3/8" | No. 1 | |
| 3/8" to 1/2" | "A" size or 15/65" | |
| #15 Type "A" | wood all depths | 5/32" |
| 14 ga. | No. 8 | |
| 16 ga. | No. 8 | |
| 18 ga. | No. 10 | |
| Tuff Span Members | No. 22 | |
| SFS SX6 (1) | 16 ga. to 5/16" | None required |
| Side Lap Fastener | Drill Bit Size | |
| SB2 Grommet | 3/8" | |
| Note: (SFS self-drilling self-tapping fasteners are not suitable for use into stainless steel support members) |
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