Installation Accessories
The small components that determine whether an envelope stays watertight, wind-tight and corrosion-resistant at every penetration and junction.
- Fasteners
- Screws + EPDM washers
- Sealing
- Butyl · closures · flashings
- Compatibility
- Steel · FRP · PC
Overview
Most envelope failures start at a detail, not in the middle of a sheet: a fastener without a sealing washer, a missing closure, an unsupported flashing or a sealant that is incompatible with the panel. Accessories are therefore part of the system specification, not a consumable chosen on site.
Installation accessories include self-drilling fasteners, EPDM washers, closure strips, butyl sealant, flashings, ridge caps and repair patches used to fix and seal roof and wall panels.
VIVON supplies fasteners and sealants matched to the panel material and environment. Coated steel, FRP and PC have different requirements for screw type, washer hardness, sealing and thermal movement. Coastal and chemical sites also need a corrosion class appropriate to the exposure.
Product benefits
- One matched source for panels, fasteners and sealants
- Reduced risk of galvanic and crevice corrosion at fixings
- Correct washer and screw combination for each panel
- Labelled packing supports orderly site installation
- Replacement components available for maintenance
Accessories are packed and labelled by type and location where agreed, so the installation team can match components to the drawing. Consumable quantities can be estimated from the roof and wall areas and fixing spacing.
Typical specifications
Values below are indicative ranges. Final specifications are confirmed against project drawings, loads and local requirements.
| Fasteners | Self-drilling screws, rivets, anchor fixings |
|---|---|
| Washers | EPDM or neoprene sealing washers, matched to panel |
| Sealants | Butyl tape, neutral-cure silicone, PU sealant |
| Closures | Profile-matched foam or metal closure strips |
| Flashings | Eave, gable, ridge, valley and penetration flashings |
| Repair items | Waterproof patches, replacement caps, touch-up paint |
| Corrosion class | Selected against coastal, industrial or inland exposure |
| Compatibility | Coated steel, aluminium, FRP, PC and insulation facings |
Selection guidance
Include the following information in an inquiry so the correct system can be confirmed without a second round of questions.
- Panel material and thickness at the fixing point
- Substrate type and purlin thickness
- Wind uplift and fixing spacing
- Roof pitch and water flow direction
- Thermal movement of the panel
- Coastal, chemical or inland exposure
- Service access and maintenance strategy
Typical applications
Frequently asked questions
Which fastener should be used with FRP panels?
FRP requires a screw and washer combination that seals without over-compressing the panel. The screw type, thread and washer hardness depend on the purlin material and panel thickness. Fixing holes may need to be drilled slightly oversized to allow thermal movement.
How many fasteners are needed per square metre?
Fixing density depends on wind uplift, panel profile, purlin spacing, building height and edge zones. The project's cladding engineer or the panel system's fixing schedule should define the pattern. VIVON can supply quantities once the layout is known.
Can accessories be supplied with the panels?
Yes. Supplying panels, fasteners, closures, sealants and flashings together reduces compatibility risk and simplifies procurement. Accessories can be packed and labelled by area or detail for larger projects.
Specify installation accessories for your project.
Send the building type, location, drawings and required performance. You will receive a coordinated recommendation and quotation.