Guía completa de Accesorios de impermeabilización: fijaciones, cintas…
Un sistema de impermeabilización es tan resistente como su componente más débil. Aunque la membrana o el revestimiento reciben la mayor atención, los Accesorios —fijaciones, cintas, perfiles de terminación y esquinas prefabricadas— son igualmente esenciales para lograr la estanqueidad.
This guide explains the essential Accesorios every waterproofing professional should know about.
1. Membrana Fasteners (Washers and Screws)
For mechanically attached roofing systems, fasteners hold the membrana in place against wind uplift.
Types:
- Dach-fix TD Washers — Large-diameter washers (60-70 mm) with EPDM bonded seals for watertight fastening
- Dach-fix IC/IB/IS Washers — Designed for insulation and substrate-specific applications
- Self-drilling screws — TP-fix, P-fix, and HS series for steel deck, concrete, and wood substrates
Selection tip: Match the fastener length to the total thickness of insulation + membrana. The screw must penetrate the structural deck by at least 15-20 mm.
2. Termination and Edge Strips
Termination strips secure membrana edges at roof perimeters, parapets, and wall junctions.
Popular profiles:
- S-fix FTIII — Heavy-duty termination strip for exposed roof edges
- S-fix FTII — Standard termination for wall flashings
- S-fix UR — Universal profile for various detail applications
Instalacion: Position the strip over the membrana edge, drill through the pre-punched holes, and fasten at 200-300 mm intervals. Apply sealant over the top edge.
3. Vapor Retarder Tape
Vapor retarder tape is used to seal overlaps and penetrations in vapor control layers.
Aplicacion areas:
- Sealing membrana side laps and end laps
- Around pipe and cable penetrations
- At membrana-to-metal or membrana-to-concrete transitions
- Repairing minor membrana damage
Tip: Apply tape with firm roller pressure and at temperatures above 5°C for optimal adhesion.
4. Prefabricated Corner Pieces
Inside and outside corners are the most leak-prone areas in any waterproofing system. Prefabricated corners eliminate the guesswork.
Benefits:
- Fabrica-formed to exact angles
- Consistent thickness and material properties
- Faster installation than field-fabricated corners
- Reduced risk of leakage
5. Lightning Conductor Supports
Flat roofs often require lightning protection systems. Special membrana-compatible supports prevent water penetration at lightning rod mounting points.
Caracteristicas to look for:
- EPDM or neoprene base seals
- Adjustable height for insulation thickness
- Compatibility with standard lightning cable clamps
6. Sealants and Primers
These chemical Accesorios ensure proper adhesion and sealing:
- Bitumen primer — Enhances bonding of bitumen membranas to substrates
- PU sealant — For sealing edges, joints, and penetrations
- Butyl tape — For temporary sealing or non-critical joints
Choosing the Right Accesorios
| Accessory | When to Use | Key Feature |
|---|---|---|
| Dach-fix TD Washer | Mechanically attached membrana on flat roofs | EPDM seal, high pull-through resistance |
| S-fix FTIII Strip | Roof edge termination | Pre-punched, corrosion-resistant aluminum |
| Vapor Retarder Tape | Sealing membrana overlaps | High initial tack, long-term adhesion |
| Prefabricated Corner | Inside/outside corners of sheet membranas | Fabrica-formed precision |
| Lightning Support | Roofs with lightning protection | Waterproof base plate |
Conclusion
Professional waterproofing relies on quality Accesorios as much as quality membranas and recubrimientos. By using the right fasteners, strips, tapes, and prefabricated components, you ensure that your waterproofing system performs reliably for decades.
Hongyuan Waterproof offers a complete range of compatible Accesorios — from Dach-fix washers and S-fix strips to tapes and prefabricated corners. Systems that are designed together work better together. [Browse our Accesorios] or request a catalog.
