Zerkle ConstructionVisit zerkleconstruction.com →

How Long Does a Roof Replacement Actually Take?

2026-10-19 · Brendon Zerkle

Most roof replacements on a typical Southwest Missouri home take one to three days from tear-off to final cleanup. The exact timeline depends on roof size, pitch, how many layers of old shingles are coming off, weather, and whether the crew finds decking damage once the old roof is stripped away.

What Determines How Long a Roof Replacement Takes?

A straightforward single-layer tear-off and reshingle on an average ranch-style home can often wrap up in a single day with a full crew working good weather. Add a second layer of old shingles, a steep or cut-up roofline, or multiple roof planes meeting at odd angles, and that same job can stretch to two or three days.

Here's what tends to add time to a roof replacement:

  • Number of shingle layers. Missouri allows up to two layers on many homes, but tearing off two layers instead of one roughly doubles the labor on that step alone.
  • Roof pitch and complexity. A steep roof slows crews down for safety reasons. Dormers, valleys, skylights, and multiple roof planes all add cutting and flashing time.
  • Decking condition. If the old shingles come off and the plywood or OSB underneath is soft, rotted, or water-stained, that decking has to be replaced before anything new goes down. This is usually the single biggest unknown in a replacement timeline.
  • Size of the home. A larger roof simply needs more squares of material installed, which takes more hours even with a full crew.
  • Weather windows. Southwest Missouri's fall and spring weather can be unpredictable. Rain, high wind, or an early frost can push a start date back or pause work mid-job, since shingles shouldn't go down on a wet deck.

What Does Each Day of a Roof Replacement Look Like?

On a standard multi-day job, the work generally breaks down in a predictable order, which helps homeowners know what to expect and when.

StageWhat HappensTypical Time
Tear-offOld shingles, underlayment, and flashing stripped down to the deckingFew hours to half a day
Deck inspection and repairCrew checks decking for soft spots or damage, replaces bad sectionsVaries, can add a day if damage is extensive
Underlayment and flashingNew synthetic underlayment, ice-and-water barrier where needed, new flashing around chimneys, vents, and valleysHalf a day
Shingle installationNew shingles installed course by course, starting at the eavesHalf a day to a full day
Cleanup and inspectionMagnetic sweep for nails, debris hauled off, final walk-throughAn hour or two

A single-day job compresses most of these stages into one shift with a full crew. A multi-day job usually means tear-off and deck repair happen on day one, with shingles and cleanup finishing on day two.

Does a Storm-Damaged Roof Take Longer to Replace?

Usually yes. A roof going through storm damage restoration often has hidden issues that a routine replacement wouldn't, like wind-lifted decking, saturated insulation, or hail bruising spread unevenly across different slopes. Insurance documentation can also add time before work even starts, since adjusters need to inspect the damage and approve the scope before material gets ordered.

Can Weather Push Back a Roof Replacement in Southwest Missouri?

Yes. Shingles need a dry deck to seal properly, and most manufacturers specify a minimum temperature for proper adhesive bonding. A job scheduled during a stretch of rain or an early cold snap may get split across more days than originally planned, or the start date may shift to the next clear window. A reputable crew will tell you this upfront rather than installing shingles in conditions that could affect how well they seal.

If you're planning a replacement and want a realistic timeline for your specific roof, contact Zerkle Construction for an on-site look. We serve homeowners throughout Stockton and the surrounding Southwest Missouri area, and timelines can vary quite a bit from one roof to the next.

FAQ

Can a roof be replaced in one day? On a smaller, simpler roof with one layer of shingles and a full crew working in good weather, yes. Larger or steeper roofs, or ones with multiple shingle layers, usually need two to three days.

Will I need to leave the house during a roof replacement? No, most homeowners stay home during the work. It's loud, especially during tear-off, and vibration can be noticeable inside, but the home stays fully livable throughout.

What happens if bad decking is found partway through the job? The crew replaces the damaged sections of decking before installing anything over it. This is common enough that it's worth asking about ahead of time rather than being surprised mid-project.

← All posts