30 Sep Sealcoating vs. Resurfacing: When to Refresh Your Ottawa Driveway
Two common maintenance options for asphalt driveways in Ottawa are sealcoating (applying a protective topcoat) and resurfacing (adding a new asphalt layer). A seal coat is a quick, inexpensive treatment applied every few years, whereas resurfacing is a more extensive restoration that can last over a decade. Knowing when to sealcoat versus when to resurface can save you money and extend your driveway’s life.
What is Sealcoating?
Sealcoating is a thin protective layer applied over your existing asphalt driveway. It’s a liquid sealant (asphalt emulsion or coal tar) that fills small surface voids and shields the pavement from water, UV rays, oils, and salt. This preventative maintenance keeps the asphalt flexible, and slows down cracking and oxidation.
How to Apply a Fresh Sealcoat
Sealcoating restores a faded grey driveway to a fresh black finish. However, it does not add structural strength or fix underlying issues; it’s mainly protective. Experts recommend sealing every 2–3 years in Ottawa’s climate. Also, sealcoating is relatively inexpensive and can prevent minor cracks from turning into major problems.
Keep in mind that sealcoating will not repair significant cracks or potholes. It can seal small hairline cracks, but any larger cracks or holes must be filled first; otherwise they will still be there under the sealant. For pavement with extensive damage, other solutions like patching or resurfacing will be necessary instead of just sealing.
What is Driveway Resurfacing?
Driveway resurfacing (also called an asphalt overlay) is a more intensive repair that gives your driveway a new top layer of asphalt. In this process, contractors patch any big problem areas, then lay a fresh layer of asphalt (about 1–2 inches thick) over the entire driveway. The result is a like-new surface without the cost of full excavation. Resurfacing is ideal when the asphalt surface is very worn or cracked, but the underlying base is still solid.
A properly done resurfacing can extend your driveway’s life by roughly 10–15 years. It’s more expensive than sealcoating, but far cheaper than ripping out and repaving the whole driveway. Resurfacing might cost a few thousand dollars, depending on size, whereas a brand-new driveway could cost well over $10,000. Resurfacing is usually done once every decade or two, as needed.
The driveway’s foundation must be intact if you choose resurfacing. If there are serious underlying problems like a totally failed base or water drainage issues causing sinkholes, those must be addressed with more than just an overlay. In such cases, a full driveway replacement might be recommended instead of resurfacing.
Key Differences Between Sealcoating and Resurfacing
- Depth of Treatment: Sealcoating is a thin surface coating only, while resurfacing adds a new, thick layer of asphalt on top of the old.
- Purpose: Sealcoating is preventative; it protects asphalt in good condition from weather and wear. Resurfacing is restorative; it renews an old, damaged surface by laying new asphalt.
- Longevity: A sealcoat provides approximately 2–3 years of protection before reapplication. A resurfaced driveway can last 10–15 years before it might need major attention again.
- Cost: Sealcoating is low-cost . Resurfacing is a larger investment but still much cheaper than a full replacement.
Signs You Should Resurface (Not Just Sealcoat)
- Multiple cracks and past repairs on an aging asphalt driveway. One major sign of needing resurfacing is a network of “alligator” cracks covering the driveway, indicating the asphalt is too deteriorated for sealant to help. Another red flag is the presence of potholes or crumbling spots, which can’t be solved by sealcoating. Note that if sections of the driveway are badly sunken or the base is failing, resurfacing alone might not be enough, a full reconstruction could be required.
Extend Your Driveway’s Life with the Right Approach
The key to a long-lasting driveway is to apply the right maintenance at the right time. Regular sealcoating and prompt crack repairs in the early years will protect your asphalt and delay bigger interventions. Then, when the surface becomes too worn for sealing, a timely resurfacing can add a decade of life to your driveway without the cost of starting from scratch.
If you’re unsure whether your driveway needs simple sealing or a more extensive fix, get professional advice. A&B Paving’s driveway paving services in Ottawa offer complete asphalt maintenance, from sealcoating to resurfacing. We can inspect your driveway and recommend the most cost-effective solution to restore its condition and longevity.
Ready to refresh your driveway? Get a Free Quote today, our experts will assess your driveway and recommend the right solution to make it look new again and last for years!
FAQs
In Ottawa’s climate, asphalt driveways should be sealed about every 2–3 years.
If your driveway has widespread cracks, multiple potholes, or stays rough and faded even after sealing, it likely needs resurfacing (a new asphalt layer) rather than just another sealcoat. Minor small cracks and light wear can be handled with sealcoating, but extensive damage calls for resurfacing.
A sealcoat typically lasts 2–3 years before it wears off and needs reapplication. A resurfaced driveway (new asphalt overlay) can last around 10–15 years before that new layer ages significantly.
Sealcoating is usually a few hundred dollars per job. Resurfacing a driveway costs more, usually a few thousand dollars. But it’s still far cheaper than doing a full removal and repave of the driveway.
No. Sealcoating is not a repair for cracks or potholes. It can fill tiny hairline cracks, but any larger cracks or holes must be filled or patched before sealing.
If the driveway’s foundation is failing (like large sunken areas or extensive alligator cracking) then resurfacing may not be enough, and a full replacement is likely needed. Also, if your driveway is very old (20+ years) or has already been resurfaced once before, replacement might be the best solution.
The best time is during warm, dry weather, typically late spring through early fall. These treatments need warm temperatures (above 10°C) and dry weather to cure properly. Most Ottawa paving companies schedule sealing and resurfacing between May and October (especially in spring or early fall).
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