I’m a manager
structural waterproofing for project managers
A BRIEF INTRODUCTION TO STRUCTURAL WATERPROOFING
BS8102: what is it and how does it affect me?
BS8102, the British Standard Code of Practice for Structural Waterproofing directs designers in making decisions that will result in successful basement waterproofing systems. These decisions need to be carefully and methodically implemented all the way along the project pipeline to ensure both the operational efficiency of the project, as well as the integrity and quality of any deliverables.
BS8102 essentially offers three ‘Types’ of, or approaches to, structural waterproofing:
1) Type A – You stop water coming in using a barrier protection;
2) Type B – You stop water coming in structurally;
3) Type C – You accept that water is going to come in and deal with it.
Why is this important to you? Well, it’s all about the order things can happen in: who and what goes where and when.
who can help me with this?
BS8102 stipulates that, at the heart of every basement design team, there should be a structural waterproofing specialist. Sub-section 4.2 of the code states that
“A waterproofing specialist should be included as part of the design team so that an integrated waterproofing solution is created. The waterproofing specialist should:
a) be suitably experienced;
b) be capable of devising solutions that accommodate the various project constraints and needs;
c) provide the design team with information and guidance that assists with and influences the design, installation and future maintenance of the waterproofed structure.
NOTE: The waterproofing specialist could be the manufacturer or material supplier, provided that the manufacturer/supplier has the relevant expertise.”
Pay particular attention to the bold, underlined section of the above quote from BS8102. It’s important to realise that structural waterproofing manufacturers are, by and large, salesmen. They might understand their product, but that doesn’t mean they will understand the geology or hydrogeology of the area, how the structure’s overall integrity will be maintained, or how other construction processes interact with waterproofing. To put it simply, they are not going to have the knowledge and expertise to help you manage your project should you hit any unforeseen obstacles along the way.
what is a waterproofing design specialist?
Waterproofing design specialists can, in theory, be anybody who is able to provide expertise in structural waterproofing. However, identifying those that have the appropriate skills and knowledge from those who don’t can be difficult and daunting. Singling out a seasoned expert from an enthusiastic salesman, even more so! Even the most experienced architects and building developers can struggle to identify those that can be trusted to give the correct information.
BS8102 states that the Waterproofing Design Specialist should have knowledge of the following:
- The range of waterproofing systems and products available.
- An in-depth understanding of the requirements of BS8102.
- Sources of water, and how it flows through the soil and interacts with the structure.
- Sufficient structural knowledge to be able to discourse meaningfully with the structural engineer.
- Sufficient geotechnical knowledge to be able to understand the implications of a soil report, and to discourse meaningfully with the geotechnical engineer.
Sounds challenging, right?!
how can THE WATERPRoOFING DESIGN SPECIALIST HELP ME?
The waterproofing design specialist will normally be a Certificated Surveyor in Structural Waterproofing (CSSW). Their specialist understanding of the building and waterproofing processes will be invaluable in helping you to plan realistic timescales for project delivery, ensuring clients’ expectations are clearly and professionally managed all along the project pipeline.
Contact Crownstone Group today on 0208 2265654 or visit www.crownstonegroup.co.uk to speak to one of our CSSWs about your project’s requirements.