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Writer's pictureChris Rouse

What is Ice and Water Shield and Why is it Important for My Roof?


What is ice and water shield and why is it important for my roof in London Ontario

Ice and Water Shield Blog Article


As a homeowner in London, Ontario, ensuring the integrity of your roof is paramount, especially when facing harsh winter conditions. One crucial component often overlooked is the ice and water shield. But what exactly is this material, and why is it so important for your roof?


What is Ice and Water Shield?


Ice and water shield is a self-adhering waterproof membrane used in roofing. It's typically made from rubberized asphalt and is applied directly to the roof plywood before installing shingles. This material creates a watertight barrier that prevents water from entering your home if it is able to seep through the shingles.


Why is Ice and Water Shield Important?


Ice and water shield acts as an additional protective barrier. While shingles are your roof's first line of defense, they aren't always enough to prevent water infiltration. Ice and water shield provides a second layer of protection, particularly in vulnerable areas such as valleys, eaves, and around skylights and chimneys.


This membrane is crucial in preventing water from penetrating your roof due to ice dams and wind-driven rain. Without it, your home is at a higher risk of water damage, which can lead to costly repairs.


How Water Can Flow Upwards on a Roof

You might wonder how water can flow upwards on a roof. This phenomenon, known as capillary action, allows water to be drawn up between two surfaces, such as shingles. Additionally, wind-driven rain can force water under the shingles, leading to leaks. Ice and water shield provides a continuous barrier that prevents this upward movement of water, protecting your home from potential damage.


The Impact of Ice on Water Flow

Ice can have a significant impact on water flow on your roof. During the winter, ice dams can form at the edges of your roof. These dams prevent melting snow from draining properly, causing water to back up and seep under the shingles. This trapped water can then leak into your home, causing damage to your roof deck, insulation, and even your ceilings and walls.


Real-Life Example


Consider the case of a homeowner in London, Ontario, who recently faced issues with their roof. Despite the roof appearing to be in good condition, they experienced leaks during the winter. Upon inspection, it was discovered that the previous roofing contractor did not use ice and water shield. As a result, water was running under the shingles, onto the plywood, and into the attic due to ice damming in the eavestroughs. This homeowner learned the hard way the importance of choosing a roofing contractor who uses ice and water shield.


Conclusion

In summary, ice and water shield is a critical component of a durable and leak-free roof. It provides an additional layer of protection against water infiltration, particularly in challenging winter conditions. For homeowners in London, Ontario, ensuring your roof includes this protective barrier can save you from costly repairs and damage. If you're concerned about your roof's integrity or need a roof inspection, consider reaching out to Rouse Roofing – your trusted experts in London roofing. Don't wait until it's too late; protect your home today.

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