Tarmac surfacing has been a popular choice for driveways, roads, and car parks for decades, praised for its durability and cost-effectiveness. However, one question is often asked before installation: How long does tarmac surfacing last? In this comprehensive guide, we will share the lifespan of tarmac and the factors that influence its longevity and provide expert tips to maximise its durability.
Swift Surfacing Ltd, a leading tarmac contractor in London and the South East since 1991, offers this in-depth look at tarmac surfacing. For personalised advice on your tarmac project, call our London office on 0208 0153737 or our Kent office on 01233 222588 or email estimated@swiftsurfacing.co.uk for more information.
Let Swift Surfacing Ltd be your partner in creating a long-lasting tarmac surface that meets your needs and exceeds your expectations.
The Lifespan Of Tarmac Surfacing
A well-installed and adequately maintained tarmac surface lasts 15 to 20 years. However, this is not a one-size-fits-all figure. The actual lifespan can vary based on several crucial factors. Let’s learn about each of them in detail to understand how they impact the longevity of your tarmac surface.
Factor 1: Installation Quality
The durability of your tarmac surface begins long before the first vehicle drives over it. Proper installation is crucial and involves several key steps:
- Adequate base preparation: A stable, well-compacted sub-base is essential.
- Correct tarmac thickness: This varies depending on the intended use.
- Proper compaction: Ensures density and strength.
- Skilled application: Expertise in laying techniques affects the final result.
How thick should the tarmac be on a driveway? The recommended thickness typically ranges from 25-300mm for residential driveways. Here are some standard guidelines:
- The top course- 25 to 40 mm in thickness
- The binder course- somewhere around 50 to 80 mm thick
- Beneath the base course- 100 to 300 mm there is often a sub-base
Factor 2: Traffic Volume And Type
The amount and type of traffic your tarmac surface experiences can significantly impact its lifespan:
- Light residential use: A typical family driveway may last 20-25 years.
- Medium commercial use: 15-20 years, for example, small business car park
- Heavy commercial use: You may require road resurfacing after 10-15 years, such as busy roads and industrial sites.
The type of vehicles using the surface also matters. Heavy trucks and machinery cause more wear than passenger cars, potentially shortening the tarmac’s lifespan.
Factor 3: Weather Conditions
Tarmac can be affected by various weather conditions, each posing unique challenges:
- Extreme heat: This can cause softening and deformation, leading to rutting.
- Freeze-thaw cycles: This may lead to cracking as water expands and contracts within the surface.
- UV radiation: The rays from sun can cause oxidation and fading, making the surface more brittle over time.
- Heavy rainfall: When it rains heavily, it can erode the surface if drainage is inadequate.
The combination of wet winters and occasional hot summers can be particularly challenging for tarmac surfaces in the UK.
Factor 4: Maintenance
Regular maintenance is crucial for extending the life of your tarmac surface. A well-maintained tarmac driveway or road can last several years longer than a neglected one. Critical maintenance practices include:
- Regular cleaning: Remove debris, dirt, and stains promptly.
- Crack sealing: Address small cracks before they become more significant issues.
- Periodic sealcoating: Apply every 3-5 years to protect from UV rays and water damage.
- Pothole repair: Quick action on potholes prevents further degradation.
- Drainage management: Ensure proper water runoff to prevent pooling and erosion.
Factor 5: Tarmac Material Quality
The quality of tarmac materials also affects how long tarmac surfacing lasts. Different types of tarmac offer varying levels of durability:
- Hot Mix Asphalt (HMA): It is one of the most common types and is suitable for various applications. It is durable and can last 15-20 years with proper maintenance.
- Stone Mastic Asphalt (SMA): More durable and resistant to rutting. It can last up to 20-25 years in appropriate conditions.
- Porous Asphalt: Allows water drainage, reducing puddle formation. While beneficial for drainage, it may have a shorter lifespan of 15-18 years due to its open structure.
- High-Performance Thin Overlays (HPTO): A relatively new technology offering enhanced durability for high-traffic areas.
Tarmac Maintenance Tips!
To maximise the lifespan of your tarmac surface, consider these detailed tarmac maintenance tips:
Tip1: Regular cleaning
- Use a stiff brush or power washer to remove debris.
- Clean oil stains promptly with a degreaser and hot water.
Tip 2: Seal Cracks
- Inspect the surface bi-annually for cracks.
- Use a suitable crack filler for small cracks (less than 1/4 inch wide).
- For larger cracks, consult a professional.
Tip 3: Apply Sealant
- Reapply sealant every 3-5 years.
- Choose a high-quality sealant appropriate for your climate.
- Apply in thin, even coats for best results.
Tip 4: Avoid Chemical Spills
- Clean up oil, petrol, and other chemicals immediately.
- Use absorbent materials before washing the area.
Tip 5: Manage Drainage
- Ensure proper slopes for water runoff.
- Keep drainage channels clear of debris.
Tip 6: Winter Care
- Avoid using metal shovels on tarmac surfaces.
- Use salt sparingly, as it can damage the surface over time.
How Long Before You Can Drive On New Tarmac?
After installation, allowing your new tarmac surface to set correctly is crucial:
- Light foot traffic: Usually safe after 24 hours
- Vehicle traffic: Wait at least 48-72 hours, depending on weather conditions
- Heavy vehicles: It’s best to wait up to 5-7 days
Other factors affecting curing time include:
- Ambient temperature
- Humidity levels
- Thickness of the tarmac layer
Always follow the specific guidance of your tarmac contractor, provided for the best results.
Average Cost Of A Tarmac Driveway
The cost of a tarmac driveway can vary based on several factors:
- Size of the area
- Preparation work required, for example, removal of existing surface, sub-base preparation
- Type of tarmac used
- Location
- The complexity of the project, for example, curves, edges, drainage requirements
On average, you can expect to pay £50 per square meter for a new tarmac driveway. This typically includes:
- Excavation and removal of existing surface (if necessary)
- Installation of a suitable sub-base
- Laying and compacting the tarmac surface
- Basic edging
Contact Swift Surfacing
Conclusion
That’s all about how long tarmac surfacing lasts, factors affecting its longevity, and its maintenance tips.
However, when it’s time for your next tarmac surfacing project, trust the experts at Swift Surfacing Ltd. Our team can help you choose the right tarmac solution, ensure a high-quality installation, and provide guidance on long-term maintenance. With over three decades of experience delivering quality surfacing solutions across London and the South East, we are committed to helping you achieve a durable, attractive tarmac surface that stands the test of time.
Call our London office on 0208 0153737 or our Kent office on 01233 222588 or email estimated@swiftsurfacing.co.uk to learn more about our services and request a personalised quote.