Superior Concrete Limited Warranty Information
This Limited Workmanship Warranty expires one year from the date of completion of the project. Any repair methods and scheduling are at the discretion of the contractor. Subcontractor work is not warrantied unless expressly written.
Warranty does not cover acts of God or damages caused directly from abuse outside of normal usage. Superior Concrete does not warrant flaking, chips, spalling, popping of rocks, settling, color variations, or any defects within the product itself. We do our very best to provide the highest quality of workmanship but we cannot warranty what we cannot control such as flaws in any third party products.
We anticipate the stress the new concrete is subjected to and install expansion joints, tooled joints, and saw cuts to minimize and control cracking, not to prevent it.
Random cracking of exterior concrete will occur and is to be expected at any point during its lifetime. We will repair any crack caused by settling that exceed 1/4″ in width within the first year.
The homeowner should take precaution to reduce or eliminate the exposure of exterior concrete to salt, chemicals, mechanical implements, and other factors which could damage the concrete surface. Homeowners should have their concrete driveways and sidewalks sealed with a penetrating concrete sealer 30 days after it is poured and every fall season, before winter, thereafter.
Concrete consists of a mixture of many natural materials: water, cement, sand, gravel, fly ash and other various admixtures. These materials are combined in many different ways according to the specific use of the finished concrete, regional requirements, and climate. Because it is a natural product, it is difficult to control how it will react to various conditions that are beyond the control of both the builder and the homeowner.
Naturally occurring conditions affect concrete in numerous ways. Missouri is classified as a Severe Weather Region for concrete. NAHB defines a severe weather region as outdoor exposure in a cold climate where concrete may be exposed to the use of deicing salts or where there may be a continuous presence of moisture during frequent cycles of freezing and thawing. Exposure to severe weather can damage pavements, driveways, walks, curbs, steps, porches, and slabs in unheated garages. Destructive action from deicing salts may occur whether from direct application or from being carried onto an unsalted area from a salted area, such as on the undercarriage of a car traveling onto an unsalted area from a salted area. Concrete expands and contracts with temperature changes. This is especially a concern during the first year after concrete has been poured, because it still retains a lot of water.
Another characteristic of concrete that is difficult to control is color variations. Concrete itself can have varying colors due to the different types of sand and aggregates used in the mixture. Color variations can also be caused by admixtures such as calcium chloride, (the most commonly used admixture to accelerate the curing process of concrete and to reduce the effects of freezing). If concrete is poured on different days, and the previously poured concrete has had time to cure a bit, color differences will be apparent. Different brands and types of concrete may contain many varieties of sand, cement, admixtures, and aggregate that will result in color variations in the finished concrete. When repairs are made, the concrete used as a filler must be extremely dry to prevent shrinkage. This almost always results in a repair patch that is darker in color than the existing concrete. Because of the previous explanations for color variations, it is to be expected that whenever a repair is made, it is nearly impossible to match the colors of concrete. Because the curing of concrete is a chemical process and can take up to one year to complete, changes in size and strength are to be expected. It is very difficult to control the effects of water evaporation, air bubbles within the concrete, air humidity, and wind. Pitting, spalling, or scaling can occur when salt or other deicers are applied directly to the surface of the concrete or when they are indirectly deposited on the surface by tires or feet. These substances cause rapid deterioration of the surface, by both chemically attacking the concrete and by drawing moisture near or within the surface and promoting expansion and contraction of the concrete during the freeze-thaw cycle. Other chemicals, such as lawn fertilizer, can also chemically attack the surface of the concrete, resulting in spalling, scaling, and pitting. Until concrete has cured, it can not withstand extreme weight such as moving vans, school buses, or garbage trucks. It is especially important to limit the amount of weight that is placed upon concrete during the first year because it needs sufficient time to cure and gain strength.