Preformed Service Pipe Entry Seals (often termed 'top hats') are available in a range of sizes. They provide effective protection against damp and gas ingress around the service pipe penetration. Manufactured from black gas grade rigid polypropylene, the base of each entry point is secured to the dry membrane penetration area utilising bonding strip on and around the underside of the base. The rising sleeve snugly fits the pipe dimension and is secured utilising bonding strip and tightening clamp.
Where penetrations of the gas-grade oversite membrane are not addressed using standard sized Service Pipe Entry Points, bespoke options are available with collars designed to receive round and rectangular projections of all dimensions. Your requirements can be determined if you make use of our free design and advisory service.
To seal and make gas-tight where a service pipe or service cable passes through oversite membrane.
- Sizes to suit pipes of approx 25mm, 55mm, 70mm, 110mm, 135mm and 150mm.
- Black polypropylene.
- For uses with compatible bonding tape/jubilee clip.