Residential Building Corridor Floor in Riyadh — 233 m² Seamless Microcement

A residential building in Riyadh needed a seamless microcement floor across the full corridor of one floor before the handover deadline. The corridor stretched 233 square metres — long, narrow, and lined on both sides with apartment door frames already installed and painted. The building contractor had committed to a specific handover date that could not move. Standard tiles were rejected because the building architect wanted a seamless continuous floor running the full length without interruption at every door threshold. Tiled corridors in residential buildings show wear fastest at those thresholds — grout lines crack, tile edges chip — and the client wanted to avoid that maintenance cycle permanently. The narrow width of the corridor added a technical constraint most contractors walk away from: the entire floor had to be applied with no foot traffic and no way to exit the space mid-application without damaging fresh material.

We started at 4:30 in the afternoon and planned to work through to completion — no stopping point once the application begins in a closed corridor. Before touching the floor, we masked every door frame with tape and plastic sheeting from baseboard to door handle height, because microcement splashes during troweling and any spot on a painted frame means rework after handover. The substrate had minor level variations from the building's concrete pour — nothing extreme but enough to show through the finished microcement flooring if left uncorrected. We ground the high points and filled the low areas before laying the primer coat. The narrow corridor means you work from the far end back toward the exit — no going back, no repositioning. The team split into two — one applying the structural coat ahead, one working the finish trowel behind, maintaining a wet edge the full 233 metres so no lap marks appeared in the final surface. The sealer went on after midnight when the structural coats had fully set. Rolling sealer in a narrow corridor fills the space with fumes fast — we kept the end doors open and worked in short passes. The reflective finish visible in the final photographs came from the second sealer coat applied at 1:30 AM. The full floor — preparation, two structural coats, two sealer coats — was completed by 2:00 AM.