Cityplaza is a shopping and office development by Swire Properties in Taikoo Shing, Hong Kong. Covering a floor area of 1.11 mil sq ft, the complex includes three 22-storey office towers and a six-storey shopping centre that houses more than 170 shops and restaurants. 

With easy access to the Tai Koo MTR station and transportation network, Cityplaza is not only a hub for leisure but also a popular business district. Here, Mapei supported the waterproofing works and replacement of full arrest systems on the roof of two buildings.

For the Cityplaza 3 tower, Mapei supplied its Purtop 1000, Mapefloor Finish 451, Primer SN and Mapeflex PU45 solutions. These high-performance and fast-installation systems were used on a roof area of 1,200 sq m.  

Purtop 1000 is a two-component, spray-applied, solvent-free, pure polyurea membrane that forms waterproof coatings with a tensile strength of more than 20 N/sq mm and tear strength of more than 80 N/mm. This system is suitable for storage tank basins, hydraulic works, roofs and bridge decks. It is also excellent for roof gardens as the membrane is resistant to root penetration (in accordance with the EN 13948 standards). 

At the Cityplaza 1 tower, Mapei proposed its Aquaflex Roof Premium, Mapelastic Smart, Ultratop and Planitop HB40 solutions, among others, for a roof area of 1,000 sq m.

Ultratop is a self-levelling mortar featuring special hydraulic binders for abrasion-resistant floorings. The system offers high mechanical strength and resistance to abrasion. It is used internally in public and industrial buildings for levelling and smoothing new or existing concrete and ceramic substrates, in thickness from 5 to 40 mm. 

The installation of Mapei systems on the Cityplaza project was completed in 2019.