Re-Roofing / Roof Replacement Services

What Makes Roof Replacement Different?

When a home already has a roof, replacing it involves much more than simply laying down new shingles. In most cases, the existing shingles or roofing material must be torn off completely. That means removing the old surface, underlayment, fasteners, flashing, and any worn or damaged components tied into the existing system. Once that material is stripped away, the roof deck underneath can finally be inspected.

This is one of the biggest differences between roof replacement and new construction. On a new build, the roof starts with fresh framing and new sheathing, so the installer is working with a clean base from day one. On a replacement project, there is always the possibility of hidden damage beneath the old roof that only becomes visible after tear-off.

Tear-Off, Disposal, and Site Preparation

One of the major factors that adds cost and labor to roof replacement is the tear-off and cleanup stage. Removing an old roof creates a large volume of waste that has to be handled carefully and disposed of properly. This usually means bringing in a disposal bin, protecting the surrounding property, and performing ongoing cleanup throughout the project.

Old shingles, nails, underlayment, flashing, and damaged wood all need to be removed from the roof and hauled away. Cleanup is not a small part of the process. It takes time, planning, and attention to detail to make sure your property is protected and left safe when the work is complete. Compared to new construction, where there is no existing roof to remove, this alone can significantly increase labor, cost, and project timeline.

Why Re-Sheathing Can Be Necessary

In many roof replacement projects, the existing sheathing underneath the roof is no longer in good enough condition to support a new roofing system. This is especially common when a roof has been left too long without replacement, has had repeated leaks, or has experienced long-term moisture exposure.

Roof sheathing refers to the wood panels beneath the underlayment and shingles. These panels form the base of the roofing system. If they are soft, rotted, warped, mold-damaged, or structurally compromised, they need to be replaced before a new roof can be installed. This process is often called re-sheathing.

Re-sheathing adds cost because it involves new materials, more labor, and more time on site. It also requires the crew to remove and replace damaged sub-panels before underlayment and final roofing materials can be applied. While this can increase the overall price of the project, it is often necessary to ensure the new roof is built on a solid, code-compliant foundation.