What Is Ice and Water Shield and How Is It Used on a Roof?

Protecting your home from roof leaks and water damage is essential, especially in areas with cold winters and heavy snow. SkyRight in Coeur d’Alene, ID, specializes in providing premium roofing solutions, including installing ice and water shields to safeguard your roof against the elements.

Understanding Ice and Water Shield

An ice and water shield is a highly effective underlayment crafted from rubberized asphalt. It features a self-adhesive backing that forms a strong bond with the roof deck and around nails, creating a waterproof barrier. This shield helps prevent water intrusion caused by ice dams, wind-driven rain, or damaged shingles.

How Does It Work?

When ice dams form or water penetrates shingles, it can seep through nail holes into your home. The ice and water shield creates a watertight seal that channels water off the roof rather than allowing it to infiltrate your attic or walls.


Key Installation Areas for Ice and Water Shield

Strategic placement is vital to the effectiveness of the ice and water shield. Here’s where it’s most commonly applied:

  • Eaves: Installed 24 inches inside the exterior wall to prevent damage from ice dams.
  • Valleys: A protective layer ensures that high-traffic areas where roof planes meet remain leak-free.
  • Around Penetrations: Pipes, chimneys, and skylights are surrounded to stop water from entering through these vulnerable points.
  • Edges and Flashing Areas: Additional protection around walls, chimneys, and other structures where flashing is installed.

Pro Tip: Two layers of protection – ice and water shield beneath shingles – create a redundancy that minimizes the risk of water damage.


Quality Matters: Choosing the Right Shield

Not all ice and water shields are equal. Premium versions, such as CertainTeed’s WinterGuard, have higher concentrations of rubberized asphalt for better adhesion and performance. Cheaper versions often fail to provide the same level of protection, leading to potential leaks even with proper installation.


Unique Insight: Did You Know?

Ice dams can cause up to $5,000 in water damage annually for unprotected homes. Investing in a high-quality ice and water shield can save you significant repair costs.


FAQs

1. Is an ice and water shield necessary for every roof?

Yes, especially in regions with heavy snow or frequent rain. It’s a vital layer of protection against water intrusion.

2. Can I install the shield myself?

While possible, professional installation ensures correct placement and adherence, maximizing effectiveness.

3. How long does an ice and water shield last?

Premium shields can last 20-30 years, matching the lifespan of your roof when installed correctly.


Highlighting SkyRight’s Expertise

As Coeur d’Alene, ID’s premier roofing contractor, SkyRight is an Owens Corning Preferred Contractor and Bonner County’s #1 rated roofing company in 2023. With a reputation for excellence, we ensure every installation meets the highest standards of quality and durability.If you’re ready to learn more about the components of a roof, click here.

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