5.5 Quality Control: Whitewall Repairs WHAT TO CONSIDER
Where preventative measures do not succeed on a building site, effective repair methods have been introduced to minimize the effects of damage to whitewall partitions from a commercial perspective. A roller-based paint application process is circa. 1/4 of the cost of spray finishes commonly used. Additionally, this eliminates the need to segregate the area, protect the works and provide extraction, and takes 1/5 of the time usually required for a spray finish.
The Process • Complete a benchmark for each damage type e.g. scratch, dimple, dent etc. • With a marked-up drawing, identify rooms / areas that are ready for repairs. • Survey and identify repair type by colour coded sticker. • Record all damages and repairs via BIM checklist with CM / Client approval. • All repairs to be applied using rollers. • Avoid aerosol application as it tends to present greater risk to the repair team and anyone in the area due to the fumes. • Repairs to be determined by scope of damage e.g. if a small scratch, a localised repair will be completed. Repair will be a taped square section. Please refer to the photos on the next page for examples of repair works. Rolling Vs Spraying • Lower risk to repair crew and others in the area. • Less likely to require mechanical extraction. • Crisp and defined areas of repair due to precision application by roller or brush allow for seamless transitions from factory finish to repaired areas. • No risk of excess residue or over spraying onto existing services and fittings. • All applications are by hand- rollers & brushes for primer and paint and paint scraper / small trowel for panel filler. • Sanding by hand or machine with built-in vacuum for dust control. • Examples of materials to be used- “4CR 7404 high Build Primer” / “Q20-016 2K Polyester Soft Putty” / “Shield X Cladding Coat”.
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