Delta and MemTech Registered Installers, Renlon were called upon to offer a solution to this property, taking into consideration the proximity of The New River and the risk from ground gases. The proposed remedial strategy to be adopted at the site was one of managing the pathway between the source of contamination and the critical receptors on-site.
When specifying the most appropriate method of waterproofing for a new-build basement it is advisable to follow the recommendations within BS 8102:2009 ‘Code of Practice for Protection of Below Ground Structures Against Water from the Ground’. The standard advises on the types of waterproofing available and confirms the performance grade to be achieved. This project required Grade 3 protection – no dampness or water penetration acceptable.
Delta’s design philosophy was to devise a suitable flood resilience measure that would protect the property from the effects of future flooding, like what had previous occurred. Information gleaned from the survey visit enabled Delta to offer a fully effective solution for the intermittent yet long term flooding problem.
The project was to convert a former vehicle maintenance and repair workshop into a dwelling. Ground tests did not reveal any significant level of Volatile organic compounds (VOC’s) in the soil but the local authority required a gas membrane to be installed and independently verified.