Standard Issues to Consider

Site applications

• Typically access systems can involve scaffolding, or powered access, which can restrict others’ access to the site.
• Overspray or spillage onto surrounding areas can be an environmental issue, or a practical issue where other items get accidentally coated.
• Weather is a variable that has a huge effect on many coating systems, not just at application, but between coats. Many systems cannot be done in wet conditions, some even have restricted humidity and temperature limits.
• Congestion on construction sites is an issue particularly where many trades are working at the same time. Eliminating one trade from the site (painters) reduces risk
• Timescale: Being weather dependent, painting on site, (even touch up), will add delay to the activity when weather is adverse. This delay will have knock on effects if scaffolding is required, or where other activities are dependent on completing the painting. (e.g. cladding waits for structural steel to be painted)

Preparation

• Most painting systems rely on steelwork being shotblasted prior to painting, and also that the steel does not get wet (rain) between blasting and painting.
• Blasting on site is expensive and creates blast overspray ( the blast media), can damage surrounding infrastructure

Environmental

• Site application systems suffer from site contamination. Sprayed, brushed or roller applied systems have spillages which enter the surrounding environment. Spray borne paint systems can travel a long distance in mildly windy conditions, affecting plants, humans or building surfaces at long distances from the site.
• Paint residues can enter the water system through ground contamination and subsequent rain carrying residues into watercourses
• In marine sites, sea, river or loch contamination can be an issue.

Pricing

These are indicative prices only. Clearly quantity can have a big impact on price as can location, size of items and other commercial factors.

Durability

Generally this is shown as time until the need for coating maintenance or re-coating. At this time some action must be taken otherwise the substrate is being attacked and compromised.