Powerbase VOC Top Hat – Pre-formed Penetration Seal - 125mm (GTNV 125BG)

125mm Powerbase VOC Top Hat (GTNV 125BG) is a pre-fabricated penetration seal designed for use with Powerbase VOC gas barrier membranes, providing a secure and effective method of sealing around service pipe penetrations. Engineered to maintain the continuity of the barrier system, it helps prevent the ingress of hydrocarbons, volatile organic compounds (VOCs), methane, radon and carbon dioxide through membrane penetrations.

Manufactured to simplify on-site detailing, the Powerbase VOC Top Hat forms an integral part of a comprehensive ground gas and contaminant protection system. Its pre-formed design enables fast installation while helping to achieve reliable gas-tight and vapour-tight seals around service entries. It is suitable for use in residential, commercial and industrial developments constructed on contaminated land or in areas requiring enhanced gas protection. Powerbase VOC Top Hat provides a dependable and easy-to-install solution for sealing service penetrations, helping to preserve the integrity and performance of VOC, hydrocarbon and ground gas barrier membrane systems.

CHARACTERISTICS

• Pre-fabricated penetration seal for Powerbase VOC membrane systems
• Helps maintain membrane continuity around service penetrations
• Provides protection against hydrocarbons and VOCs
• Effective barrier against methane, radon and carbon dioxide
• Quick and simple installation compared with site-fabricated details
• Suitable for contaminated land and ground gas protection applications
• Designed to create secure gas-tight and vapour-tight seals
• Enhances the performance of the membrane system
• Reduces the risk of gas and contaminant ingress at penetrations
• Improves installation efficiency and consistency
• Provides a reliable detailing solution for service entries
• Supports long-term protection of occupied buildings

APPLICATION

• Contaminated land developments
• Brownfield regeneration projects
• Ground gas protection systems
• Hydrocarbon and VOC barrier installations
• Service pipe penetrations through gas-resistant membranes
• Residential, commercial and industrial construction projects