Sika Waterproofing - Sika system ensures watertight future for basement conversion

Sika supplied a high-quality waterproof solution to facilitate the conversion of a former Victorian warehouse basement into modern office space and guarantee its long-term protection against damp and water ingress.

To expand its offices in London’s King’s Cross, global publishing company, Springer Nature, decided to transform a disused 100-year-old basement into smart, comfortable workspace for staff. Due to one of its walls forming a retaining wall for the Battlebridge Basin - part of Regents Canal – leaving it susceptible to damp and water ingress, a proven watertight solution was required to ensure the basement remained watertight for the long-term wellbeing of employees and the costly equipment within. Contractors, Gunite Eastern, selected Sika’s three-part waterproof render system for the task.

With refurbishment work beginning in May 2017, it initially involved the installation of the Sika-1 Pre-bagged Waterproofing system. This proven, watertight solution ensures specifiers meet the requirements of a project with just one system - and it requires no ongoing maintenance. A pre-bagged render product, it comprises a blend of kiln-dried specially-graded aggregates and cements, as well as a liquid waterproofing admixture. The admixture is mixed into the render, which bonds monolithically to the prepared substrate, blocking all gaps and capillaries to provide an impregnable and invisible seal. This process essentially means the system becomes as one with the structure.

This was followed by the Sika Cavity Drainage System, a high-density polyethylene internal drainage membrane which effectively controls any water that penetrates a structure. The membrane is installed loose-laid in flooring applications and attached to the wall with surface plugs in vertical installations. The concrete waterproofing installation was completed with the application of SikaTop Seal-107, a two-part, polymer-modified cementitious waterproof mortar slurry. Comprising a liquid polymer and cement-based mix incorporating special admixtures, the system provides robust waterproof protection for new and existing basement walls and floors.

Matthew Gillborn, Senior Contracts Manager at Gunite Eastern, said: “We suggested to the client that Sika provided the full-waterproof system to ensure a consistent source of supply, technical support and guarantees. The system didn’t disappoint. Its quick and easy application meant we were able to plan and execute an effective working schedule with other on-site trades. Most importantly, it also allowed us to complete the waterproofing programme to the agreed deadline, much to the client’s satisfaction.”

Thanks to the watertight properties of Sika’s three-part render waterproofing solution, Springer Nature’s refurbished basement will provide a damp and moisture-free environment for the future health and wellbeing of staff and the building itself.

DIRECTORY

Mon, Oct 29, 2018 4:45 PM
Sika Waterproofing
Sika Limited
Watchmead
Welwyn Garden City
Herts
AL7 1BQ
United Kingdom
T: 0800 292 2572
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