Frequently Asked Questions
Common questions about asphalt paving, costs, maintenance, and project planning
🛣️General Asphalt Questions
What is asphalt made of?
Asphalt is composed of aggregate materials (stone, sand, gravel) bound together with bitumen (asphalt cement). Typically 95% aggregate and 5% bitumen by weight.
How long does asphalt last?
Properly installed asphalt can last 15-30 years depending on traffic, climate, and maintenance. Regular sealcoating every 3-5 years extends lifespan significantly.
What's the difference between asphalt and concrete?
Asphalt is flexible and made with bitumen binder, while concrete is rigid and uses cement. Asphalt is typically less expensive initially and easier to repair.
Can asphalt be recycled?
Yes! Asphalt is 100% recyclable. Reclaimed asphalt pavement (RAP) is commonly used in new asphalt mixes, making it an environmentally friendly choice.
💰Cost & Pricing
How much does asphalt cost per square foot?
Asphalt typically costs $2-7 per square foot installed, varying by project size, thickness, site conditions, and location. Larger projects usually cost less per square foot.
What affects asphalt pricing?
Key factors include material costs, project size, site preparation needs, thickness requirements, accessibility, local labor rates, and seasonal demand.
Is it cheaper to overlay or replace asphalt?
Overlay is typically 40-60% less expensive than full replacement, but only works if the existing base is structurally sound and properly graded.
How can I reduce asphalt project costs?
Consider timing (off-season), larger project scope, good site preparation, multiple quotes, and bundling with other work like drainage improvements.
🏗️Installation & Timing
What temperature is needed for asphalt paving?
Air temperature should be above 50°F and rising, with dry conditions. Asphalt mix temperature is typically 275-300°F when laid and compacted.
How long does asphalt take to cure?
Asphalt can typically handle foot traffic after 4-6 hours and light vehicle traffic after 24-48 hours. Full cure takes several weeks to months.
Can asphalt be paved in winter?
Generally not recommended. Cold weather makes proper compaction difficult and reduces asphalt lifespan. Most contractors work April through October.
How thick should my asphalt be?
Residential driveways: 2-3 inches, commercial driveways: 3-4 inches, parking lots: 3-6 inches, roads: 4-8+ inches depending on traffic load.
🔧Maintenance & Repair
How often should I sealcoat my asphalt?
Every 3-5 years for most applications. New asphalt should cure 6-12 months before first sealcoating. High-traffic areas may need more frequent treatment.
What causes asphalt cracking?
Common causes include age, weather (freeze-thaw cycles), heavy loads, poor drainage, insufficient base preparation, and lack of maintenance.
Can small cracks be repaired?
Yes! Small cracks can be sealed with crack filler or rubberized sealant. Address cracks early to prevent water infiltration and larger problems.
When should asphalt be replaced vs. repaired?
Replace when there's extensive cracking, base failure, poor drainage, or when repair costs exceed 50% of replacement cost. Otherwise, repairs are usually sufficient.
📋Project Planning
Do I need permits for asphalt paving?
Depends on location and scope. Driveways often don't require permits, but roads, commercial projects, and work affecting drainage usually do. Check with local authorities.
How do I choose a good asphalt contractor?
Verify licensing and insurance, check references and Better Business Bureau rating, get multiple detailed quotes, review previous work, and ensure they use quality materials.
What site preparation is needed?
Typically includes marking utilities, excavation to proper depth, drainage installation/repair, base material placement and compaction, and final grading.
How long does an asphalt project take?
Small driveways: 1-2 days, large driveways: 2-3 days, parking lots: 3-7 days, roads: varies widely. Weather delays can extend timelines.
Still Have Questions?
Use our asphalt calculator to estimate materials and costs for your project
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