Understanding Each Step in the Roofing Process

180 Contractors • September 25, 2025
Sunlit suburban house with gray roof and stone accents at sunset

Whether you’re installing a roof on a new build or replacing an old one, understanding the roofing process helps you make informed decisions and ensures that your project goes smoothly. Homeowners in Waterford, MI know how important a strong, reliable roof is in a region that experiences everything from lake-effect snow to intense summer storms. A new roofing system is more than just shingles—it’s a multi-step process that protects your home for years. Here’s what to expect from start to finish.


Step 1: Initial Inspection and Assessment

The first step is a thorough roof inspection. A professional contractor evaluates the condition of your current roof and determines whether a repair or full replacement is needed. During this stage, they’ll check:

  • Shingle condition
  • Roof decking integrity
  • Flashing and ventilation systems
  • Signs of water damage or leaks


This inspection ensures the project is scoped correctly and provides the information needed for a detailed estimate.


Step 2: Choosing Roofing Materials

Once it’s determined that a replacement is necessary, you’ll select your roofing materials. This includes more than just the visible shingles—your roof is a system made up of multiple layers that must work together.


For homeowners in Waterford, MI, weather resistance is key. Many choose impact-resistant or architectural shingles from trusted brands like Owens Corning, known for their durability, color selection, and long-term performance.


Your roofing contractor will help you decide on:

  • Shingle type and color
  • Underlayment (synthetic or felt)
  • Flashing upgrades
  • Ventilation systems
  • Ice and water shields for winter protection


Step 3: Job Site Preparation

Before installation begins, the contractor will prepare your home and the surrounding area. This includes:

  • Laying down tarps to protect landscaping
  • Moving outdoor furniture or fragile items
  • Placing disposal bins for debris
  • Ensuring safety equipment is in place


Proper preparation reduces the risk of damage to your property and allows for efficient cleanup afterward.


Step 4: Removing the Old Roofing

Next comes the tear-off phase. Your old shingles, underlayment, and flashing are removed down to the roof decking. This step is critical, as it exposes any underlying damage that wasn’t visible during the initial inspection.


If your decking shows signs of rot or water damage, it will be replaced or repaired before moving forward. This ensures your new roof is installed on a solid, safe foundation.


Step 5: Deck Inspection and Repairs

Once the old materials are stripped away, your roofer will conduct a second, closer inspection of the roof deck. Any damaged plywood is replaced, and the deck is prepared for the new layers.


This is also the time when additional protection—like ice and water shields—is installed, especially in climates like Waterford, MI, where ice dams and snow buildup are common.


Step 6: Installing the Roofing System

The installation of your new roofing system follows a layered approach to ensure water resistance, energy efficiency, and long-term durability:

  • Drip edge is installed to direct water away from the fascia.
  • Ice and water shields are placed along eaves and valleys.
  • Underlayment provides a moisture barrier across the decking.
  • Starter shingles set the base for proper alignment.
  • Main shingles are installed in overlapping rows.
  • Flashing is added around chimneys, vents, and valleys.
  • Ridge vents and caps are installed to complete the ventilation system.


When properly installed, this system forms a durable barrier that keeps water out and regulates your attic’s temperature.


Step 7: Final Cleanup and Inspection

After installation, the crew will clean the job site, removing all old materials, nails, and debris. A magnetic sweeper is often used to find hidden nails in your yard or driveway.


Then, your roofing contractor will walk you through the finished job, ensure all specifications were met, and provide warranty documentation. Most high-quality roofers, like 180 Contractors Roofing & Siding, also offer maintenance tips and aftercare information to help you protect your investment.


Why Professional Installation Matters

A roof is only as good as its installation. Hiring a licensed, insured, and experienced contractor ensures your roof complies with building codes, performs well over time, and qualifies for manufacturer warranties.


In Waterford, MI, 180 Contractors Roofing & Siding is a trusted name in residential roofing, known for using premium materials from Owens Corning and delivering quality work that lasts.


Final Thoughts

Roof replacement is a big project, but when done right, it adds value, protection, and peace of mind to your home. Knowing each step of the process—from inspection and material selection to installation and cleanup—helps you navigate the journey confidently and ensures that your roof is built to withstand Michigan’s toughest weather conditions.


Read also our blog: What a Full Roof Replacement Process Looks Like

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