Author Archives : Ben Hickman

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How long does waterproofing last under a podium deck/green roof?

This is post 1 out of 10 (the last one was an intro) on the topic of sustainability and waterproofing How long does waterproofing on a podium deck last? 40 – 55 years!! Think about that for a moment. We all know that buildings need maintenance. Those of us who…

What is sustainability when it comes to waterproofing?

Sustainability is increasingly recieving the attention that it should. But what does sustainability mean when it comes to waterproofing? Building Pathology One of the biggest issues we face in building pathology is water. In surveying older buildings, we frequently see blocked gutters resulting in penetrating damp. We often see vegetation…

BS 8102 – Table 2

BS 8102 Table 2 (BS 8102:2009 ‘Code of practice for protection of below ground structures against water from the ground’) is shown below and gives guidance as to the performance required from structural waterproofing; depending on the intended end use the basement. Within this blog I try to explain this…

Ground Gas Mitigation in Basements

I’ve recently had three projects requiring ground gas mitigation in basements. Radon, methane, carbon dioxide and VOC’s are some of the more common ground gasses. These dangerous gasses are typically found on development sites which aren’t ideal. Sites such as ex-petrol stations, land fill sites, brownfield sites etc. Whilst far…

Podium Decks

Podium decks is a term I’m using here to describe a basement ceiling which also acts as a roof. This may be a subterranean roof/ green roof/ podium deck etc. I feel that this is an increasingly common design where a basement structure extends beyond the boundary of the building…