Replacing a roof is a major investment, but many homeowners focus only on what they can see—the surface materials. In reality, the long-term performance of a roof depends just as much on the hidden layers underneath.

When those layers are installed correctly, they work together to keep your home dry, ventilated, and protected from harsh weather year after year. When they’re skipped or poorly installed, even a brand-new roof can develop leaks, mold, or structural problems in just a few seasons.

At Maple Ridge Roofer, we want you to understand these details before you sign any contract. Here’s what matters most.

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Common Shortcuts That Can Lead to Problems

Even if a roof looks great from the ground, hidden shortcuts can cause trouble later. Here are some areas where budget contractors often cut corners:

Ice & Water Shield: Essential in Ontario

In our climate, snow often melts and refreezes along the eaves, creating ice dams that block proper drainage. Without an ice and water shield, that trapped water can seep into your roof structure and cause leaks.

What to ask: Where will you install the ice and water shield? How wide will the coverage be?

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Underlayment: The Backup Protection

Underlayment acts as a backup waterproof layer. If the outer surface gets damaged in a storm, this layer helps keep water from reaching the wood deck immediately.However, not every roof requires full coverage. On steep or complex roofs, installation maybe adjusted for safety or structural reasons.

What to ask: Is underlayment included in my quote? If not, why?

Drip Edge: Small Detail, Big Impact

Without a drip edge, water can run behind the gutters and soak into the fascia board, leading to rot and costly repairs.

What to ask: Will drip edge installation be included?

Flashing: Inspect Before You Replace

Flashing around chimneys and valleys is one of the most important leak barriers. Professional installers inspect it carefully and replace sections that are rusted, warped, or poorly sealed.Some low-cost crews simply reuse old flashing or seal it with caulk, which rarely holds up.‍

What to ask: Will you inspect the flashing and explain what needs replacement?

Ventilation: Don’t Overlook Airflow

A roof that can’t breathe will trap heat and moisture. Over time, this leads to mold, warped wood, and reduced lifespan for the entire system.Most homes use high-quality plastic vents; in some cases, metal vents are chosen for extradur ability or animal resistance.

What to ask: What type of venting will you use, and how many vents will be installed or replaced?

A roof is more than just a layer of materials on top of your house. Ice and water shields, underlayment, drip edges, flashing, and proper ventilation—these hidden components are what truly keep your home safe from the elements.

At Maple Ridge Roofer, we don’t take shortcuts.

• We follow standardized, code-compliant installation practices.
• We use premium materials from top North American brands.
• We provide clear, detailed quotes with no hidden costs.
• And we back it all with a 10-year workmanship warranty.

Planning to replace your roof?
Schedule a free inspection and estimate with us. We’ll walk you through exactly what your
roof needs—so you can make a confident, informed decision.

Maple Ridge Roofer | Ontario Most Trusted Roofing Experts