North West Premier Construction

Courthouse development makes a case for Sika 1

Manchester Court Buildings, Sika 1 Waterproofing System
Written by Roma Publications

Manchester Court Buildings, Sika 1 Waterproofing System

For the conversion of a vacant Grade II Listed building into a major new mixed use development in the heart of Manchester city centre, Sika has provided its Sika 1 Waterproofing System to ensure the 120 year old landmark building will have a reliable and long term waterproofing solution that will protect the life of the structure. 

Formerly the Manchester County Court Buildings on Deansgate, the new Courthouse development, designed by architects Hurd Rolland, features 36,500 sq ft of high quality office, retail and restaurant space. To transform the existing basement into a habitable area for Henry Boot Developments, project manager and employer’s agent Merrin Jenkins worked with both the architects and main contractor Tolent Construction on the specification of a proven system which would provide an efficient and long term solution to their waterproofing requirements. This led to the specification of the BBA approved Sika 1 Pre-bagged Waterproofing System from Sika.

“There were a number of considerations which had to be taken into account when specifying the product including the ease and speed of construction, the impact in the nett lettable area within the building, product guarantee offered, availability of subcontract resources, and the limitations on the fit-out,” commented Lee Merrin of Merrin Jenkins. “The Sika 1 System met all of these requirements.”

With the building constructed in 1896, the basement was showing signs of deterioration and water ingress. To prepare and clean the surfaces prior to application, Sika approved contractor Construction Techniques mechanically prepared the basement walls before surface planing the floors. Sika 1 Pre-Bagged Waterproofing System was then applied to all basement surfaces.

Manchester Court Buildings, Sika 1 Waterproofing System

Andy McCormack, Director, Construction Techniques commented:

“The Sika 1 Waterproofing System offered considerable benefits to the client as the waterproofing solution for the Courthouse and as an applicator, offered our team the simplicity and flexibility of installation.”

As a market-leading system, it has a proven track record of more than 100 years and has been specified for some of the most prestigious and demanding environments, offering a reliable, long-term solution.

Sika 1 Pre-bagged Waterproofing System is hand-applied and incorporates a specially developed admixture which is mixed with blended pre-bagged mortars. When applied to the walls and floors, it reacts with water to turn into a jelly-like substance, blocking all gaps and capillaries, to provide an impenetrable and invisible seal. By bonding monolithically with the substrate, it becomes one with the structure.

Aiming to provide a habitable basement, waterproofing was applied to the highest standard possible. This ensured that the basement achieved Grade Three in the recently updated BS 8102:2009 – Code of practice for protection of below ground structures against water from the ground. Sika 1 Pre–bagged waterproofing system has also been certified by the British Board of Agrément (BBA) to last the life of the building, providing exceptional standards of durability and reliability.

With the proven and reliable Sika 1 Pre-bagged Waterproofing System in place, the courthouse development features an appealing, habitable basement that will remain dry and watertight long into the future.

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