Liquid waterproofing solution specified for National Sperm Bank

Due to the roof’s age, a precautionary refurbishment was required to protect the building from potential leaks. Based on the initial survey, it was decided that the single ply was in good enough condition for the overlay of a new product.

To seamlessly cover the roof and prevent water ingress around the existing plant, lightning conductors and pipe penetrations, a cold applied liquid membrane was specified. 

Decothane Ultra was been developed using patented, low odour technology to enable use on highly sensitive sites, and was therefore ideal for the project. 

Cold liquid waterproofing solution

Tasked with waterproofing a roof covered in plant, Rio Asphalt had to work within a short timeframe whilst the building was in constant use. 

In the sperm bank, the correct temperature is imperative at all times, and switching off machinery and ventilation, or removing staff, was not an option.

Martin Raithby, contracts manager at Rio Asphalt said: “Decothane Ultra was the agreed liquid approved waterproofing solution, which was a great choice considering the fast turnaround we were given for the job. It was especially challenging due to the sheer amount of plant and detailing we had to work with.” 

“We have been using Sika Liquid Plastics products for many years and our operatives have been trained by the Sika applications team. It’s great to get the chance to work on such challenging projects which require the latest developments and big thinking to achieve.”

To deliver the 20 year guarantee and ensure the Sperm Bank roof would be sound for years to come, the works were inspected during progress by the Sika Liquid Plastics technical team, leading to a full 34 point Final Inspection Certificate sign off. 

The entire project was completed without disruption to the essential services of the bank below and the building remained operational throughout.

Sika House
Miller Street
Lancashire
UK
PR1 1EA

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