DAFA Airtight Retrofit Grommet | Passive House Cable & Pipe Sealing
DAFA Renovation Grommet – Airtight Sealing for Passivhaus & Passive House Projects
The DAFA Renovation Grommet is a premium, airtight sealing solution designed to maintain the integrity of your building’s envelope. Ideal for Passivhaus and Passive House projects, this innovative retrofit grommet ensures an airtight seal around cables & pipes, preventing unwanted draughts and heat loss in both residential and commercial properties.
Crafted for use when it’s not possible to slide a traditional grommet over disconnected pipe or cable ends, the DAFA Renovation Grommet easily adapts to existing pipe and cable penetrations. This ensures robust protection against air leaks while improving overall energy efficiency. Comparable to leading products the DAFA Renovation Grommet stands out for its reliability, durability, and ease of installation.
Why Choose DAFA Renovation Grommets for Airtight Sealing?
- Passivhaus-Ready: Compliant with the stringent standards of Passivhaus and Passive House building practices.
- Airtight Performance: Eliminates gaps around cables and pipes, ensuring airtight sealing to minimise heat loss and prevent draughts.
- Versatile Application: Suitable for internal and external roofs, walls, and floors, and adheres to a wide range of substrates including timber, plywood, metal, plastic, and various membranes.
- Retrofit-Friendly: The split design allows installation without removing or disconnecting existing pipes and cables, saving time and labour.
Product Highlights
- Radon-Resistant: Independently tested and approved by SINTEF in Norway for peace of mind and healthier indoor air quality.
- Self-Vulcanising/Amalgamating: Securely bonds to substrates without the need for additional sealants or adhesives.
- Extremely Stretchable & Durable: Accommodates pipes and cables up to 180mm in diameter, maintaining a reliable seal despite expansion or movement.
- UV-Resistant & Weatherproof: Built to withstand challenging conditions for long-term durability.
- Energy-Saving: Preserves airtightness to help reduce heating costs and lower carbon footprint.
Material & Technical Specifications
- Material: Non-ageing, elastic polyisobutylene with robust acrylic adhesive
- Weight: 2000 g/m²
- Thickness: 1 ± 0.2 mm
- Assembly Temperature: -10°C to +60°C
- Temperature Resistance: -60°C to +80°C
- UV Stability: 5000 hours (EN 1297)
- Storage: Keep dry at up to +40°C
Easy Installation & Maintenance
No special tools, sealants, or adhesives are required. Simply apply the grommet directly to the desired substrate. The flexible, split design ensures a tight, secure fit around existing pipes and cables, maintaining a continuous and uninterrupted airtight layer within your building envelope.
Enhance Your Building’s Energy Efficiency
Investing in DAFA Renovation Grommets not only improves the airtight sealing around cables and pipes, but also supports a more energy-efficient, eco-friendly property. By reducing heat loss and improving insulation performance, these grommets help align with low-energy building standards, ultimately contributing to a more sustainable environment.
Upgrade to DAFA Renovation Grommets Today
Enhance the airtightness and longevity of your Passivhaus or Passive House project with DAFA Renovation Grommets. Whether you’re a professional builder, architect, or DIY enthusiast, these grommets offer a straightforward, high-performance solution that keeps your property energy-efficient, comfortable, and future-proof.
Selection Chart
| Grommet Size (O/D) | Starting Hole Diameter | Suitable for Pipe/Cable Diameters | DAFA Item No. | EAN No. |
|---|---|---|---|---|
| Ø115 mm | Ø4 mm | Ø5 to Ø30 mm | 620046279 | 5705636532899 |
| Ø160 mm | Ø25 mm | Ø30 to Ø80 mm | 620046277 | 5705636532875 |
| Ø250 mm | Ø75 mm | Ø80 to Ø140 mm | 620046278 | 5705636532882 |
| Ø300 mm | Ø130 mm | Ø140 to Ø180 mm | 620047766 | 5705636535944 |
Installation
Installation Guide
- Preparation: Ensure the substrate is clean and dry.
- Positioning: Place the collar over the existing pipe or cable penetration.
- Mounting: Press firmly to secure the self-vulcanizing collar onto the substrate with a minimum overlap of 20 mm.
- Sealing: The acrylic adhesive forms a strong bond, eliminating the need for additional sealants.
Installation Video
Datasheet
To view all technical details of DAFA's Retrofit Pipe & Cable Sealing Collar, please download the technical datasheet below: 