Applying the treatment
The product can be applied by any practical means. Sprinkler head, spray, watering can, brush etc.
Mix and pump: The mix is prepared in a large jerrican, or a bin then pumped using an ordinary garden pump and a garden shower head.
Injection in the flow: The injection box, set to the appropriate injection rate, will do the mixing as and when the trigger opens. The operator does not need to handle the concentrate. The mains pressure is usually sufficient the spray a roof.
Telescopic Poles: They are required to apply the product with precision. The nozzles are calibrated to reduce the risk of spray drift.
Concentrations: For roofs 1 to 18 (injection box at 5.5%).
Application rates: On porous substrates apply to saturation: approximately 1 litre / m2 on concrete tiles. On non absorbent materials (natural slates, clay tiles) the coverage will increase to approximately 1/3 litre of mix per m2.
On non porous roofing material, spray from eaves to ridge to limit the loss of product by rivulet dribbling.
Temperature: There is no temperature threshold as such. Below 8ºC the efficacy is hampered and the work becomes unpleasant. Hot water can help overcoming a cold day, but adds little to the treatment efficacy.