Terrazzo nosings are not usually protected by a modern day mechanically fixed cover. Heavy items dragged down the stairs could therefore create this kind of damage. Repair could involve the insertion of stainless steel into the new materials, depending upon the nature of the damage. Tapered edges must be cut to a vertical profile before repair.
Where contract flooring has been removed from a staircase or landing, we are frequently faced with the proposition of removing a flexible adhesive or self-leveller. Wherever possible we prefer to effect this removal without recourse to chemicals, preferring the use of aggresive grinding discs. Fine polishing will remove resulting scratches and leave the area ready for polishing and sealing.
Usually during a large fit-out, the handrail or balustrade will be upgraded and changed based on the architectural specification. Often the position of the supports for the new balustrade will be in different locations meaning holes will be left in the terrazzo. Our experience with stair projects enables to match colours and aggregates quickly to effect rapid re-builds.
As a cementitious product terrazzo does need maintenance. A decent sealer will provide a good front-line of protection, but repairs to cracks, pitting holes and damage by chemical attack all need attending to as soon as they occur.
The benefit of terrazzo coving is that it prevents water from penetrating the edge of the floor, eventually working its way underneath and gradually causing the floor to lift. Where coving is removed or fails we recommend that it is replaced or repaired urgently.
Again, during the demolition stage of fit-outs or refurbishments, terrazzo stairs are often neglected. The picture shows a step after the existing nosing was removed. Previously adhered on with strong glue and also mechanically fixed, upon removal a considerable amount of the existing step was damaged. Great care must be taken when removing nosings, to provide the best chance of rescuing terrazzo underneath.
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