The abbreviation for one coat render, a factory-batched exterior plaster designed to be applied in a single pass rather than the traditional scratch coat and top coat method. It contains additives that allow it to build thickness without sagging or cracking. It saves significant labor time on site while providing a weather-resistant finish.
Heard on the job
We're spraying OCR on the blockwork tomorrow to get the exterior sealed up before the rain hits.
Also heard as
- one coat render