Canopy cleaning, for schools and colleges
- Initially use an acid and biflouride free solution to clean, then apply a preventative treatment against algae, moss and liverwort
- Use powered access equipment where necessary
- Work can be performed at weekends and school holidays, to minimise disruption
- All staff are fully trained, have necessary qualifications to operate powered access machinery and are CRB checked
- Correct maintenance will have a major impact in maintaining the decorative appearance, thus enhancing the lifetime of the coating
- Each location should be handled separately, since the coating will be exposed to a variety of atmospheric conditions
Periodical cleaning and routine maintenance (cleaning frequency)Powder coatings used on the exterior:
Cleaning is used to remove dirt and/or stains in order to maintain the decorative impression of the coating. Should the coating be placed in close proximity to the sea, or highly polluted areas (man made or natural) aggressive stains may result on the coating surface and cause the gloss to fade. This may accelerate degradation through corrosion, resulting in reduced lifetime of the coating. Cleaning is generally recommended at 6 monthly intervals, but in highly exposed areas the frequency should increase; dependent on the severity of end-use conditions. Ordinary dirt and stains can be removed using a household detergent, diluted with water. Cleaners should not contain abrasive materials or solvents in order to avoid adverse effects to the coating. Cleaning material should be a neutral detergent with a pH from 5 to 8.
Polytek Services only use recommended, biodegradable cleaning solutions
We use a non-aggressive cleaning technique to remove the build up of airborne pollutants and grime, whilst not damaging the protective surface coatings of the fabric membrane. This can greatly enhance the aesthetics of the structure, especially if carried out on a regular basis.
Tensile fabric structures require regular safety inspections by experienced personnel which will include a full inspection of the canopy membrane, associated steelwork and rigging. Following this inspection Polytek Services Ltd will provide an Inspection Report detailing the condition of the structure. Any remedial works, which we believe require attention, will be highlighted in our recommendations.
For exterior canopies, the general build up of dirt is from dust and airborne pollutants from traffic and building works, as well as falling leaves from trees and shrubs. Dirt on horizontal or flat canopies can be particularly bad where slow water drainage only moves dirt very slowly. On more extreme forms you may find that dirt build up is minimal.