10/23/2025
Rain or Shine (or Freeze!): How Weather's Moisture Impacts Your Asphalt. 🌧️💧
In Winnipeg, we know a thing or two about diverse weather! While sun and extreme temperatures play their part, the issue of moisture is arguably the most critical factor affecting your asphalt's lifespan.
How does water wage war on your pavement?
Invisible Intruder: Water finds its way into every tiny crack, pore, and imperfection on your asphalt surface.
Weakening the Foundation: Once moisture penetrates, it saturates the crucial underlying gravel base (sub-base). This weakens the very foundation that supports your asphalt, making it vulnerable to collapse under weight.
The Freeze-Thaw Fury (Especially in Winnipeg!): This is our local asphalt's biggest enemy! When trapped water freezes, it expands by about 9%. This expansion exerts immense pressure, forcing the asphalt apart, leading to new cracks and transforming small fissures into large, costly potholes.
Binder Breakdown: Constant exposure to water can also strip the asphalt binder away from the aggregate (stones and sand), making the pavement brittle and susceptible to further damage.
The result? Accelerated deterioration, more potholes, extensive cracking, and a significantly reduced lifespan for your parking lot or driveway.
Protecting your asphalt from moisture is paramount for its longevity and your investment!
Concerned about weather damage to your asphalt?
Contact City Pave for a FREE assessment and expert solutions tailored for Winnipeg's climate!
Call: (431) 482-5688
Learn more: CityPave.ca