The project scope was to design, specify and install waterproofing protection systems to B2 (double height) and B1 basement levels to house plant rooms, amenities, and critical infrastructure.

Managing groundwater and ensuring long-term structural integrity are essential challenges with subterranean structures.

The scope of the project was to provide a Grade 3 environment to a large existing basement which will feature multiple bars, toilets, seating areas along with further excavation for lift pits, etc.

This complex project required a specialist to provide an efficient, compliant, and future proof approach.  

The scope of this project was to provide a remedial waterproofing solution to external deck, addressing the failure of the previously applied waterproofing system. Waterproofing failure in buried roofs and podium decks poses considerable challenges. A robust waterproofing design is essential for maintaining long-term structural integrity and ensuring optimal performance.

Key considerations when specifying a waterproofing solution include movement, differential movement, drainage, expansion joints, drainage outlets, landscaping, and crucially, what lies below the deck, such as habitable spaces or car parking.

The project addressed waterproofing and ground gas protection after hydrocarbons were found during site investigations, indicating a potential risk.

Using multiple British Standards in design and specification ensures quality, safety and efficiency, streamlining processes and reducing risks. BS 8485:2015+A1:2019 provides guidelines for designing protective measures against methane and carbon dioxide ground gases in new buildings and outlines strategies for creating specifications that ensure ground gas protection. With BS 8102:2022 ‘Protection of Below Ground Structures Against Water Ingress’ is a code of practice providing recommendations and guidance for safeguarding underground structures from water penetration.