Project · residential
External concrete stair refurbishment, Broughty Ferry
We refurbished a long external concrete stair that serves the upper floor of a sandstone building. The treads and nosings had worn and rounded off. We removed the defective concrete, rebuilt the steps, edges, risers and nosings against timber formwork, and finished the stair in a slip-resistant grey protective coating.
- Services
- Concrete & Structural Repairs
- Sector
- Residential
- Location
- Broughty Ferry
- Area
- Dundee and Angus
The problem
The stair is a long external flight with iron railings, rising along the side of a sandstone building to an upper floor and landing. Years of foot traffic, rain and frost had worn the treads hollow and rounded off the nosings, which makes a stair harder to use safely, especially in the wet.
Our solution
Defective concrete was removed and the worn surfaces were prepared so the new concrete would bond to the existing stair. Timber formwork was then fixed to the front of every step, set out to give even risers and square nosings along the whole flight. The damaged steps, edges, risers and nosings were rebuilt against the formwork, and the formwork was struck once the concrete had gained strength. The top landing edge, where the stair meets the stone retaining wall, was rebuilt in the same way.
Once the repairs were complete, the stair was prepared and finished with a grey protective coating with slip-resistant properties.
Products and systems used
- Removal
- Defective concrete removed
- Preparation
- Worn treads and nosings prepared for the new concrete
- Formwork
- Timber formwork fixed to each step and the landing edge
- Repair
- Steps, edges, risers and nosings rebuilt
- Finish
- Grey protective coating with slip resistance
The result
The stair has square treads and crisp nosings from the bottom step to the landing, under a slip-resistant grey finish. It was restored without being replaced. The slider above shows the same view of the flight before and after.
Before, during and after
01 / Before · Worn treads and rounded, eroded nosings.
02 / During · Timber formwork fixed to the front of each step.
03 / After · The finished flight from the top landing.
04 / After · The stair and landing from above.
05 / After · The new landing edge where it sits on the stone wall.
- 01 Worn treads and rounded, eroded nosings.
- 02 Timber formwork fixed to the front of each step.
- 03 The finished flight from the top landing.
- 04 The stair and landing from above.
- 05 The new landing edge where it sits on the stone wall.
