Addressing Dampness and Moisture in Walls Prior to Redecoration

Redecoration – In order to prepare for your next redecoration project, the overall condition of substrates must be analyzed, a point in hand is the presence of unwanted moisture in the structure of a building, either the result of intrusion from outside or condensation from within the structure. The most damage to paint systems, and eventually to the substrate and the structure, is caused by excessive moisture in the walls.

damp can be of three categories,

  • Condensation due to temperature differences between moisture containing air and the building surfaces.
  • Rising damp emanates from water in the ground. Rising damp is the common term for the slow upward movement of water in the lower sections of walls and other ground-supported structures by capillary action. The height of the rise is rarely above 1.5m.
  • Penetrating damp is caused by rain and is also known as descending damp and lateral damp.

Prior to painting, the building needs to be inspected for all signs of dampness. Tell-tale signs of dampness are the deposition of salts on the surface, flaking paint, water staining and discolouration. Pigments used in premium quality exterior coatings are chemically stable and UV stable under “normal” conditions i.e. moisture levels below 12%. The pigments used have the highest rating resistance to acid and alkali but at high moisture levels, soluble salts from the plaster composition and elsewhere are transported through the coating by the moisture and deposited on the coating surface. The result is discolouration of the surface of the paint and sometimes deterioration of plaster. Prior to painting, it is essential that causes of dampness are established and cured. Dreamcoat painting prides itself on adhering to painting practices that address the damp proofing necessary to apply sound coating systems that protect your asset and investment in your redecoration. Contact Dreamcoatpainting for your next re-decoration requirements.

Sound Surface preparation produces Sound painting Systems

Paint coatings are composed of different chemicals, which combine synergistically to provide the paint with its properties. However, in order to derive the optimum paint properties and maximise the longevity of the coatings, it is of paramount importance that the paint coating is applied using best painting practices and according to the manufacturer’s specifications. In the main, it is essential that the substrate to which the paint coating is applied is free of defects that will affect the adhesion of the coating system. Adhesion to the substrate is the key to coating longevity. In addition, it is important to use a paint coating system that will protect the building substrates and enhance the aesthetics of the building. Dreamcoat Painting addresses all the elements of surface defects, and performs detailed repairs, removal, cleaning and general preparation that is required prior to the painting of new and existing plaster, concrete, brickwork, and building boards. Prevention is better than cure and the secret to a perfect, long-lasting paint finish is a sound, clean and dry substrate and the correct use of products. It is important to note that for optimum coating performance, fresh plaster should be allowed to dry and cure adequately, i.e. one week drying for every 5mm thickness, and longer in cold or damp weather. Contact us for a detailed scope of work on your next project.

Spalling Repairs

Concrete spalling (carbonating) occurs when the reinforcing steel in concrete corrodes. The corrosion is caused
by the ingress of salt and carbon dioxide into the concrete. When steel corrodes, the rust has a larger volume than the original
steel and this expansion breaks the surrounding concrete. Concrete where spalling (carbonating) occurs must be chipped
away and removed. The damaged and rusted steel reinforcing needs to be cleaned away, down to bright, shiny metal.
IT will then be painted with a corrosion resistant paint system. Should Inadequate cleaning, repair and painting, take place this my ay lead to further contamination of
the concrete. It is important that all concrete areas with a negative pH (less than 12) are removed and repaired. The repaired area is then re-instate with a
lightweight cement mix. Dreamcoat specialises in the repairing of spalling. and have repaired a considerable number of high rise buildings throughout Durban and surrounds.

Contact Dreamcoat for a competitive quotation.


How to hire the right painting contractor

Painting is one of the more popular home improvement projects homeowners like to undertake. Whatever the scope of the project, hiring a professional contractor will save a lot of time and effort in the long run. But finding the right one is an important decision that requires careful consideration. Use the following tips to hire the right professional for any painting project:

Experience. How long has the contractor been in business? This trade can have high turnover. Make sure you hire someone who has been operating for two years or longer.

Preparation work. What kind of preparation work does the contractor do? A cheaper job will skimp on the prep work to cut corners. A good painting contractor will take the time to do everything that should be done, what they have stated they will do and what you both agreed would be done. The workmanship will show in the end, good or bad.

References. Can your contractor provide them? Call references before making a hiring decision.

Knowledge. Can the contractor make recommendations on what materials will work best for your project? A professional keeps up with the latest products and techniques. They will have suggestions for colors and finishes and be knowledgeable about the latest trends. Experience counts.

Guarantee. Does you contractor offer any? Besides the guarantee offered on the products by the paint manufacturers, most reputable painting contractors will offer a warranty on the application/preparation process. If so, you should expect a written one.

Formal estimate. Make sure the contractor puts the scope of the project, materials they will use and amount of prep work in a written contract, not on the back of business card or a haphazardly drawn-up dollar figure on a piece of paper. A professional painting contractor provides their clients with written contracts and specifications.

Cost. Price is naturally a concern. Getting the lowest price should not be your first or only consideration. You want to get someone with skill, experience, who is properly licensed and insured, aware of safety issues and is a good worker. That will not likely be the individual with the lowest bid. It does not need to be the highest bid, either. Just make sure not to hire on price. Look at the whole picture. Painting contractors operate on very tight profit margins. You will hear of homeowners who hired college students, unlicensed individuals and teachers out of work in the summer and were happy with the work. If the price seems too good to be true, however, it probably is.

Always get at least three bids. Ask and state the same questions and expectations. Once you receive the bids, which should take no longer than a week, you should carefully compare that all proposals have the same amount of prep, materials and scope of work along with all the proper documentation.