The Roof Replacement Process: Step by Step

A roof replacement is a multi-step process that typically takes 1-3 days. Here is what happens from the initial inspection through final cleanup, so you know exactly what to expect.

Roofing 101 · 10 min read

Pre-Installation Preparation

Before work begins, several steps ensure the project runs smoothly:

1

Initial Inspection

A roofing professional inspects your roof, measures the area, and assesses the condition of the roof deck, flashing, and ventilation. This determines the full scope of work.

2

Written Estimate

You receive a detailed estimate covering materials, labor, timeline, and any potential additional costs. This becomes the basis for the contract.

3

Permits and Notifications

Most Denver-area municipalities require permits for roof replacement. Your roofer will pull permits and notify neighbors if work will be disruptive.

4

Material Delivery

Materials are delivered to the property a day or two before installation. The crew plans where materials will be stored to minimize damage to your property.

Tear-Off and Deck Inspection

On the morning of installation, the crew begins by removing the old roof:

Property Protection

Tarps are placed around the house, and the crew uses magnetic nail sweepers to protect landscaping and your driveway.

Removal of Old Roofing

Existing shingles are removed and loaded onto a dumpster. Most Denver homes have 1-2 layers of old shingles.

Deck Inspection

Once the old roof is removed, the crew inspects the roof deck (plywood or OSB) for rot, water damage, or structural issues. Any damaged sections are replaced.

Decking Repair Costs

If decking repairs are needed, you are notified immediately. Repairs typically cost $150-$500 per sheet of plywood.

Installing the New Roof

With the deck prepared, installation begins:

1

Underlayment

A water-resistant underlayment is rolled out and fastened to the deck. This provides an extra layer of protection against water intrusion.

2

Flashing

New flashing is installed around chimneys, walls, vents, and valleys. This is critical for preventing leaks at these vulnerable areas.

3

Shingle Installation

Shingles are installed starting at the eaves and working up to the ridge. Each row is carefully aligned and fastened according to manufacturer specifications.

4

Ventilation

Ridge vents, soffit vents, or power vents are installed or upgraded to ensure proper attic ventilation.

5

Ridge Cap

The final layer of shingles (ridge cap) is installed along the peak of the roof. This is a critical weather protection point.

Cleanup and Final Inspection

The final steps ensure your property is left clean and the work is done right:

Magnetic Nail Sweep

The crew uses magnetic sweepers to remove nails from your yard, driveway, and roof. This is critical for protecting your pets and vehicles.

Debris Removal

All old roofing materials, packaging, and debris are removed from the property. The dumpster is hauled away.

Final Inspection

The roofer conducts a thorough inspection of the completed roof, checking for proper installation, flashing, and ventilation.

Walkthrough with Homeowner

You receive a walkthrough of the completed work. The roofer explains maintenance recommendations and warranty details.

Post-Installation Follow-Up

Good roofers provide ongoing support after installation:

Warranty Registration

Your roofer helps you register your manufacturer warranty and explains the terms of their workmanship warranty.

Follow-Up Inspection

Many roofers schedule a follow-up inspection 6-12 months after installation to ensure everything is performing correctly.

Maintenance Tips

You receive guidance on how to maintain your new roof, including gutter cleaning, branch trimming, and annual inspections.

Frequently Asked Questions

How long does a roof replacement take?

Most residential roof replacements in Denver are completed in 1-3 days, depending on roof size, complexity, and weather. Metal roofs may take 2-5 days. We provide a detailed timeline during the estimate phase.

Can I stay home during roof replacement?

Yes, you can stay home during the installation. However, there will be noise and vibration. Some homeowners prefer to be away during the tear-off phase if they work from home or have pets that are sensitive to noise.

What happens if it rains during roof replacement?

Roofing crews work quickly to minimize exposure. If rain is forecast, they may tarp the roof overnight. Temporary water protection is common if weather delays completion.

Do I need to be home during the installation?

You do not need to be home during the installation, but we recommend being available for the final walkthrough. You can reach the project coordinator at any time during the project.

Questions About Your Roof?

Schedule a free inspection with our Denver roofing team.