Painting of boundary walls

Correct procedure for this application will ensure maximum life span of the coating. Very seldom are boundary walls constructed with the inclusion of Damp-Proof Course (DPC). This means that the lower part of the wall will be subject to rising damp. Watering of lawns and flower beds adjacent to the walls provides a constant source of water around the base of the wall causing this to be a constant issue. Here's how to deal with this in the best possible manner.
Remove all loose and flaking paint by scraper. Cracks, if present, should be opened up by angle grinder. Refill these areas using a 3:1 sand/cement mix using Weatherbond Enhance (a water-proofing polymer) to wet the mixture to application consistency. Using a sponge, remove excess and match the appearance of the repair plaster to the existing profile surrounding the repair. Allow this repair to dry for 24 hours. Spot prime repairs or any exposed raw plaster Using Plaster Primer and allow to dry for 8 hours. Treat any fungal/algal contamination by application of Fungal Wash - allow 6 hours for the product to sterilise the surface and then scrub or high pressure jet the debris of the wall. Re-apply Fungal Wash and leave to dry on the surface - do not wash this off before re-painting.

Water-proof the top horizontal surface, or coping, by application of two coats Elastocryl, at a spread rate not exceeding 5 square metres per litre, allowing two hours drying time between coats. This area can then be coated with two coats Weatherklad in approved colour ( 8 square metres per litre, 4 hours drying time between coats). This will eliminate the possibility of water-ingress from the top of the wall, leaving only the issue of the rising damp to be best accommodated.
The vertical surface should be coated with two coats MattCoat 40 - a breathable matt finish product.
This will ensure moisture rising in the wall has the greatest possibility of diffusing through the coating, in the form of water-vapour, without damaging the coating. MattCoat 40 is also a far cheaper product than sheen finish alternatives - it is not often that the best technical option also costs less!!