If you are lucky enough to have an existing basement or cellar in your property, then waterproofing this area and converting it into a dry room can be a cost-effective and highly rewarding way of extending your home and utilising valuable space. However, structural waterproofing below ground is a highly specialised field and must be undertaken by technicians and surveyors who have competent levels of skill, understanding and experience. Failures resulting from inadequate specifications or poor workmanship can be very costly, ranging from flooding of the basement through to serious structural damage.

Before moving forward with a basement tanking project, it’s important to ensure that you are aware of the different waterproofing options available to you. Depending on the structure of your home, your budget and the intended use of your newly converted space, a specific waterproofing method may suit you better. We work alongside a PCA trained and qualified C.S.S.W (Certificated Surveyor in Structural Waterproofing) who specialises in the provision of waterproofing systems, so if you are unsure about what is right for you, don’t hesitate to book a survey and our team will be able to advise you personally.

Below is a brief overview of the two primary basement tanking options as outlined by the British Standards Institution.

Type A Waterproofing

Type A Waterproofing is the simplest and most obvious form of basement tanking. It involves creating a barrier that groundwater from the outside cannot penetrate. Of the available waterproofing techniques, Type A is usually the most affordable and easy to implement. In particular, Type A Waterproofing is the preferred method if the walls of your basement have already been damaged or are currently suffering from significantly decreased structural strength.

Effectively implementing a Type A Waterproofing system requires a clean surface on the inside of the basement. To achieve this, the walls of the basement are stripped until the base material is exposed, after which a range of materials are added, finishing with some form of waterproofing material. This waterproofing agent can vary depending on the intended purpose of your new space and the requirements of your project, ranging from epoxy resins to more complex slurries and renders.

Type C Waterproofing

Type C Waterproofing is a significantly more intricate method of basement tanking that centres around pumping groundwater away from the basement by trapping it using a newly-installed membrane. The need for membrane installation and a full pump system usually makes this approach more expensive than Type A Waterproofing, though it can also be more effective, long-lasting and reliable depending on your local geography and the previous strength of your basement.

To install a water management system that enables Type C Waterproofing, significant work must be done on the basement’s walls including the addition of pipe systems, perimeter channels and the membranes that complete the waterproofing solution. In general, the Type C installation process is usually a little more intrusive, but definitely worth it in the right circumstances.

Basement Tanking with Avant Garde Damp Solutions

At Avant Garde Damp Solutions, we pride ourselves on offering a tailored service delivered by experts. From our PCA (Property Care Association) trained surveyors to our fully accredited specialist technicians, we want to ensure you receive the best quality experience every time.

Book a survey today and we will give you bespoke, honest advice based on your personal basement tanking project.

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