How thick should a driveway be?
For a residential concrete driveway, 4 inches of concrete is the usual minimum, with 5–6 inches where heavier vehicles park, on a compacted granular base of roughly 6 inches or more. Asphalt driveways are commonly 2–3 inches of hot-mix over a similar compacted base. Soil, drainage and the vehicles you own in St. Catharines decide the exact build-up, and we spell it out in the quote.
Is blacktop the same as asphalt?
Mostly, yes. "Blacktop" is the everyday word for asphalt pavement. Technically both are a mix of stone aggregate and bitumen; blacktop is sometimes used for the hotter, finer surface mix used on driveways and lots, while heavier asphalt mixes go on roads. For a home driveway in St. Catharines, the terms describe the same thing.
How do I know if my driveway needs repair or replacement?
Hairline cracks and surface wear can usually be sealed or resurfaced. Wide, spreading cracks, potholes, sunken sections, heaving and water pooling against the house usually point to a failed base, and patching that will not last. If more than about a quarter of the surface is damaged, or the driveway is near the end of its life, replacement in St. Catharines is often better value than repeated repairs. An on-site look settles it.
Asphalt vs concrete vs interlock pavers — which lasts longest?
Concrete typically lasts longest with the least upkeep when it is reinforced, jointed and built on a proper base. Asphalt is cheaper and quicker, flexes with frost and is easy to patch, but needs sealcoating every few years. Interlock pavers look great and individual stones can be replaced, yet they shift and weed over time if the base and edge restraints are poor. In St. Catharines, the base matters more than the surface: any of the three fails early on a thin base.