How to repaint an old coat infested with algae and mold?

PROBLEM: how to repaint an old coat infested with algae and mold

The appearance of molds on the thermal insulation system is facilitated (especially on the North and Northeast walls) by surface condensation caused by prolonged contact of humid air with the cold surfaces of the insulation package. Other external factors that can increase the risk of infestations may include: - Lack of frames or protective enclosures - Proximity to vegetation (hedges, trees, lawns) rich in pests - Polluted areas rich in fine dust.

SOLUTION

CYCLE		INDICATIVE QUANTITY OF MATERIAL PER SQM
1	Cleaning of all external surfaces (even those not contaminated) with COMBAT PLUS SOLUTION. Bleaching solution containing sodium hypochlorite in aqueous solution, to be used in cycles for the treatment of walls infested with molds and algae.	10 SQM/L
2	After a few minutes, rinse thoroughly with a low-pressure power washer to completely remove any trace of the treatment. Rinse and let dry completely. Foam will form during rinsing, continue washing until the foam disappears.
3	Sterilizing treatment of all external surfaces (even those not contaminated) with algicide and fungicide solution BIOCID PLUS applied with a brush to neutralize fungus deeply and hydrophobize the capillaries of the existing finish.	10 SQM/L
4a	Application of two coats of acrylic quartz-based washable, high coverage paint resistant to the growth of algae and molds, INFINITY QUARZ.	6-8 SQM/L PER COAT
4b	Application of two coats of highly breathable and hydrophobic self-cleaning siloxane-based paint resistant to the formation of molds and algae thanks to applied nanotechnology, NANOTECH SILOX.	6-8 SQM/L PER COAT
	In case of flaking or poorly cohesive surfaces, apply a preliminary coat of penetrating water-based sealer FIXACRIL properly diluted. Wait 12-24 hours.	10 SQM/L

How to repaint an old coat infested with algae and mold?

PROBLEM: how to repaint an old coat infested with algae and mold

SOLUTION

You may also be interested in