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06 May 2025 by Fosroc
PRODUCTS
HSBC Data Centre Tseung Kwan O was built in 2008. The 47,128sqm data centre has to operate 24-7 in order to comply with the Uptime Institute Tier IV requirements. The awards winning data center has achieved a Hong Kong BEAM Gold rating, and FuturArc Green Leadership Award in recognition of the project’s environmentally responsible design.
THE PROJECT
As time went passed, several water seepage locations were found at the ceiling of the top-level facilities rooms. The problems have been aggravated in recent years. The water seepage was seriously affecting the operations of the facilities rooms and server rooms. An urgent A&A work was required immediately at the extensive building roof (12,000 sqm). The weather was a challenge during the work period since it was the rainy season in Hong Kong. The duration of the work was very tight, and it must be completed in a short period of time. Thus, fast setting material was preferred. Moreover, the working space under the roof grating was very limited. That increased the difficulties of waterproofing system application. The product used for this project must be ‘green’ as it has to maintain the building sustainability standard.
THE SOLUTION
We introduced Fosroc Polyurea WPE, Dekguard PU waterproofing and coating system. The existing waterproofing membrane was firstly removed. The concrete cracks were then v-cut and repaired by concrete repair materials. Nitoprime 31 was touch-dry applied to the susbstrate in order to seal up the pin holes and minor defects on the substrate. The primer also enhanced the bond strength for receiving the subsequent layer of Fosroc Polyurea WPE. Skillful applicator sprayed the Fosroc Polyurea WPE onto the substrate and to the base plate of metal gratting with an even thickness (min.1.5mm thk.). As the working space was very limited, the applicator increased the pressure of the spraying nozzel ensure full coverage of Polyurea under the metal gratting. Dekguard Pu was applied on the cured Fosroc Polyurea WPE surface as UV stable trafficable protective coating for the system. Nitoseal PU40 polyurethane based sealant was used to seal the concrete joints to complete the job.
THE BENEFITS
With the benefits of the fast setting properties of Fosroc Polyurea WPE and the whole proposed system, the job was completed in a short period of time. No water seepage was found anymore. The client was impressed as the whole job was completed at a high quality standard within the tight schedule, without any delayed. We gained the trust from the client. Two other A&A projects were awarded to us following to this project. It was also a good job reference to us.
Fosroc Polyurea WPE on surface drain
Fosroc Polyurea WPE on plith
Fosroc Polyurea WPE on vent pipe
Ponding Test with pigmented water
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