Basement waterproofing solution for a Georgian family home


Nestled in the South West of England within a picturesque village just outside Bath, lies a Georgian family home spread over four floors and made from Cotswold stone. The basement was dark damp and used as a storage space by all the family, with over 50 years’ experience Timberwise were tasked to design and install the right basement waterproofing system to create a dry living space with improved lighting that could be used and enjoyed by all the family.

After an initial visit from a Timberwise Waterproofing Design Specialist, Timberwise designed a comprehensive waterproofing system to comply with BS 8102:2009. The first task was to clear the site of all debris, emptying out years of collected clutter to leave a blank canvas on which to create the perfect dry living space for this family home.

The Waterproofing Solution Methodology

After the first contractors laid the concrete flooring, Timberwise technicians hit the ground running, the chosen system was a cavity drain membrane system (otherwise known as Type C waterproofing). A Type C waterproofing solution controls the flow of water within the basement area as opposed to stopping the flow of water.

High-density cavity drain membrane was fixed to the walls using a watertight fix whilst holding the membrane in position. As opposed to traditional tanking that works by holding back the water and pressure a Type C system allow water to penetrate and flow behind the membrane into a perimeter drainage channel which directs the water to a sump pump.

A heavy duty cavity drain membrane is used on the floor and joined to the wall membrane with waterproofing tape – effectively creating an envelope of the membrane around the basement. The sump pump unit is at the heart of the waterproofing system, this is where any water within the basement area is channelled to and then pumped away to a convenient drain off point. In this basement, a TripleSafe unit with 3 pumps was used, a complete sump system including primary, secondary and backup pumps meaning the basement will be ready for practically anything which gives the customer ultimate in peace of mind.

With the waterproofing system in place, the other building trades could then play their part in transforming the basement – the electrician, plumber, joiner and plasterer all carried out the finishing touches that complete the basement conversion. The light well area of the basement was enlarged to increase the space within the basement. The area was dug out and prepared and once complete with a handmade wooden frame, the light well will become a feature of the basement.

With the walls plastered, the oak floor laid and the lighting in place the project is nearing completion. From start to finish the whole project took 6 weeks. With the addition of the final luxury touches, the basement is finished. High-quality solid oak floor, delicate lighting and an advanced audio-visual system combine together to give the basement a real touch of luxury.

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