Frequently Asked Questions

  • Can concrete floors be installed with Underfloor heating?
    • Yes, provided there is a minimum of 40mm thickness allowed for the screed.
  • Is it necessary for “Expansion joints”?
    • Yes, we recommend pushing expansion joints every 3 to 4 metres to reduce the risk of cracking.
  • Why do bubbles form? Will these bubbles chip away?
    • Blisters may form on the surface when entrapped air or bleed water migrates through the concrete to the surface. They are difficult to see during finishing and although appear irregular, they usually do not break up.
  • What are the green ‘mould-like’ markings on the floor? Will these markings go away?
    • Green markings on cement floors are as a result of slag cement (which is a by- product in the manufacturing of iron-ore) rising to the surface. Not only does the making of slag cement lessen the burden on landfills, but it also reduces air emissions at steel plants through the granulation process. It works synergistically with Portland cement to increase strength, reduce permeability, improve resistance to chemical attack and inhibit rebar corrosion. The bluish- green markings fade over time and are no cause for concern.
  • Do I get a warranty on my floors and walls?
    • Maxicoatings guarantees the workmanship for a period of one year. Product warranties are subject to manufacturer guarantees.
  • How do I look after my floors?
    • Concrete floors are easy to maintain. How much maintenance your floor will need, largely depends on the amount of traffic it receives. The maintenance needs of a residential floor will be different to those for a floor in a high-traffic, commercial or retail environment. In most cases, residential floors experience light foot traffic. A simple cleaning regimen of occasional sweeping and damp mopping will keep concrete floors looking like new for many years. A coat of floor finish or wax will make them even more resistant to stains, chemicals and abrasion.
  • What is the curing process?
    • Skimmed walls need to be moistened the day after application to promote hardening and an allowance of 3 days of drying time before sealers can be applied. Granolithic floors should be kept wet for a minimum of 7 days and then allowed to dry for a further 7 to 14 days. Cement overlay floors are allowed to air cure for 72 hours before sealers are applied.
  • How long does the screed floor installation process take?
    • Granolithic floors take approximately 2 weeks from start to finish depending on area coverage
  • How durable is the floor product?
    • If installed by a professional contractor, concrete should offer a lifetime of wear. As the product ages it will distress and mature as most natural products do.
  • Is cracking on the floors normal?
    • Yes. It is the inherent property of all screeds made with Portland cement and aggregates to shrink during the process of drying. Also cracking can occur in the concrete slab (substrate) below the screed causing structural or settling cracks. However, some people actually love the rustic, organic look that can be achieved by leaving minor random cracks exposed. With the correct preparation, bonding, and curing of the screed unsightly cracks will be minimised. Maxicoatings takes all precautions to reduce the risk of cracking by performing substrate tests prior to application, applying bonding liquids and polypropylene fibres to the screeds, pushing expansion joints at weak points and promoting adequate curing and drying times. As long as they are not separating or breaking up the screed, cracks are considered a natural process and are welcomed much like stone and rock cracks are not regarded as unsightly.
  • What is the difference between an epoxy floor and a cement screed floor?
    • Epoxy is a synthetic polymer which can be coloured and applied as a decorative floor finish. Because polymers are synthetic they do not breathe and can trap moisture and delaminate. They are more even in colour and have a ‘flat’ appearance. Cement based flooring is a natural, greener option for flooring which allows for breathability. The colour penetrates the cement up to about 2mm and cannot be walked off.
  • Are the walls and the floors finished in an even colour?
    • No, you can expect colour variations in much the same way mother nature waves a wand over all things organic. Uneven tones, mottling and distressing are exactly what you want from cement products