In Quebec, our four seasons make life difficult for traffic surfaces, especially concrete ones. The main problems encountered are cracking, spalling and heaving of concrete caused by the effects of freezing and thawing cycles. In addition, there is the abrasive and corrosive effect of de-icing salts spread generously throughout the winter.
Starting in the fall and before the winter season, maintenance of concrete surfaces will increase the life span of balconies, stairs and sidewalks. The first step is to clean the surfaces with a broom or a high-pressure jet. Grease, rust, vegetation and algae must also be removed with appropriate products. Cracks and other defects should also be repaired. Then, depending on the condition of the slab, we will proceed, if required, to its chemical scarification or with a diamond stone grinder before applying a waterproof sealant to reduce the effects of bad weather and de-icing salts.
The garage slab also needs to be maintained and protected. The same cleaning techniques used on the exterior apply. Depending on the condition of the slab and the sealer chosen, it may be necessary to prepare the surface by scarifying it with the grinder. An acrylic sealer costs about $1 per square foot and should be applied every 2-3 years. Epoxy membrane costs between $3 and $4 per square foot, but offers a durability of 10 to 15 years. Polyurea sealant with vinyl flakes, which is becoming increasingly popular, lasts for 15 years and costs between $4 and $5 per square foot. Don’t hesitate to entrust this work to professionals for an impeccable and long-lasting finish.
