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Hydroseal IRATA rope-access technician in full harness and PPE replacing façade sealant on a high-rise office tower in Singapore’s CBD, with the city skyline and river far below
CommercialFaçadeExternal WallRope Access

High-rise façade sealant by rope access, CBD

Central Business District, Singapore 2026

A multi-week IRATA rope-access programme re-sealing every elevation of a Grade-A CBD office tower, no scaffolding and the building fully occupied throughout.

The problem

The perished sealant in the façade joints of a Grade-A office tower had reached end of life across every elevation, risking wind-driven rain into a fully tenanted building. Scaffolding an occupied CBD high-rise was neither practical nor affordable.

Our approach

We mobilised an IRATA rope-access team to work the tower elevation by elevation over several weeks, abseiling each drop to remove and replace the failed sealant joint by joint, sequencing around tenant hours and Singapore’s heavy mid-year rain.

Method

Rope-access removal of degraded façade sealant, joint preparation and re-sealing with new weatherproof silicone across the granite-and-glass elevations, from tens to over a hundred joints a day, plus a level-4 skylight recurrence and repaint.

Outcome

Every elevation re-sealed against the monsoon, with the tower trading normally throughout, no scaffold and no entrance or car-park closures, and the works recorded for the building file.

On site

Hydroseal IRATA rope-access team abseiling the full height of a Grade-A office tower façade in Singapore’s CBD during a façade sealant replacement projectHydroseal IRATA rope-access team abseiling the full height of a Grade-A office tower façade in Singapore’s CBD during a façade sealant replacement projectHydroseal IRATA rope-access technician mid-abseil working a granite-and-glass façade joint during sealant replacement on a high-rise office building in Singapore’s CBDHydroseal IRATA rope-access technician mid-abseil working a granite-and-glass façade joint during sealant replacement on a high-rise office building in Singapore’s CBDMultiple Hydroseal IRATA rope-access technicians abseiling across several floors of a granite-and-glass office building façade in SingaporeMultiple Hydroseal IRATA rope-access technicians abseiling across several floors of a granite-and-glass office building façade in SingaporeHydroseal façade sealant preparation with masking tape and a suction anchor on the glazing of a high-rise office tower, the CBD streets far belowHydroseal façade sealant preparation with masking tape and a suction anchor on the glazing of a high-rise office tower, the CBD streets far below

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