What to Expect on Roof Replacement Day
An honest, hour-by-hour walk-through of what actually happens when we replace your roof — how long it takes, how loud, what you need to do, what stays safe, and what we deliver at end of day.
Most NJ homeowners have never had a roof replaced before. The first time it happens, the day feels chaotic — trucks arrive, tear-off starts, debris falls, and for 6–8 hours your house is a worksite. We've installed thousands of NJ roofs and we know exactly how the day unfolds. This page walks you through it honestly so you know what to expect, what's normal, what to prepare for, and what we deliver before we leave.
This is for the standard single-family install. Slate restorations, large estates, and commercial flat-roof projects run longer schedules with different cadences — we'll walk you through those separately at the estimate.
Install Day Timeline
- 7:00–7:30 AM
Crew arrives + setup
5–6 crew members, dump trailer positioned per the staging plan you signed off on, magnetic sweep area roped off, tarps laid on landscaping. We don't start tear-off until staging is fully set — this protects your property.
- 7:30–10:30 AM
Tear-off begins
Old shingles come off in 4-foot bands from ridge to eave. Loudest part of the day. Debris falls into chutes or onto the dump-trailer pad below. We never strip more roof than we can dry-in same day — your home stays weatherproof.
- 10:30 AM–12:00 PM
Deck inspection + repair
With the old roof off, we check every plywood sheet. Soft, rotted, or water-damaged decking gets replaced now (we quote per-sheet cost upfront so there are no surprises). This is the only time the deck is visible — we won't skip the inspection.
- 12:00–1:00 PM
Underlayment + ice-and-water shield install
Self-adhered ice-and-water membrane goes down first at eaves, valleys, around penetrations. Synthetic underlayment covers the rest of the field. NJ R905.1.2 requires 24" past the inside wall plane; we extend to 36" past — beyond code.
- 1:00–4:00 PM
Shingle install + flashing details
Architectural shingles install with 6-nail high-wind pattern, ring-shank nails, hand-set in the manufacturer's nailing zone. New step flashing at every wall transition, kick-out flashing where roof meets siding above a gutter, counter-flashing at chimneys. No reused flashing — everything new.
- 4:00–5:00 PM
Ridge cap + cleanup
Ridge vent install (if part of scope), SBS-modified hip and ridge cap (won't blow off in nor'easters), full magnetic sweep of the work area for stray nails, debris loaded into dump trailer, final walk-around with you. We don't leave until cleanup passes inspection.
Your 8-item checklist
You don't need to do much to prepare — but these 8 items make the day smoother for everyone and protect your property.
- Move cars 30+ feet from the dump trailer staging area
- Take down any wall art or shelving in the upper floor — vibration from tear-off can shake things loose
- Plan to be away from the house OR set up in a basement/lower-floor room (noise level is high)
- Cover items in the attic with sheets/tarps — small debris will fall through the deck during inspection
- Move grill, patio furniture, planters 10+ feet from the house perimeter
- Leave outdoor pets indoors all day — even calm dogs spook at tear-off noise
- Let your neighbors know in advance — most appreciate the heads-up
- Identify a hose bib we can use if magnetic sweep needs a rinse-down area
What we don't do (and why)
We don't strip more than we can dry-in same day
Some contractors strip an entire roof and tarp overnight. That's a leak risk if wind catches the tarp or if rain hits unexpectedly. We work in 4–6 foot bands, tear off + underlayment-cover before moving to the next band. Your home stays weatherproof every minute of the install.
We don't reuse old flashing
Step flashing, kick-out flashing, drip edge, valley metal — all of it comes off with the tear-off and gets replaced with new material. Reused flashing is the #1 source of post-reroof leaks. The flashing cost on a typical reroof is $400–$900 — not worth saving by reusing.
We don't skip the deck inspection
Once the old shingles are off, the entire deck is visible. We walk every square foot of plywood looking for soft spots, rot, water damage, or undersized fasteners. Any plywood that needs replacement gets called out, photographed, and quoted before we close it back in. We won't bury bad decking under new shingles — that's how 5-year-old roofs end up failing.
We don't leave nails on your lawn
Magnetic sweep at the end of every day — large rolling magnet across the entire work-area perimeter. We collect every dropped nail and show you the pile at end-of-day walk-around. If you find a nail in your driveway or yard after we leave, call us immediately — we'll be back within 24 hours with the magnet at no charge.
How we keep your property safe
Landscape protection
Tarps and plywood lay-down pads cover shrubs, flowerbeds, and lawn perimeter. Wheeled equipment stays on plywood, not turf. Daily walk-through to confirm no plant damage.
$2M insurance + COI
$2M general liability + full NJ workers' comp coverage. Certificate of insurance on file with your homeowner's policy if requested. You don't pay out-of-pocket for any incidental damage from our crew.
End-of-day walk-around
Before we leave, we walk the perimeter with you. Magnet sweep results, drip-edge check, any unexpected discoveries from the day. You sign off on the walk-around — the project isn't complete until you have.
FAQ
How long does a roof replacement actually take?
Most NJ single-family roofs are 1-day installs — a 16–24 square Cape Cod, ranch, or Colonial with straightforward geometry. Larger homes (25–35 squares) or complex roofs (multiple gables, dormers, valleys) run 2–3 days. Slate restorations and large estates run 1–4 weeks because the work itself is slower. We give you a written day-count at the estimate; the day-count rarely changes unless weather forces a pause.
Do I need to be home during the work?
No — you don't need to be present during tear-off and install. We'll handle everything including the deck inspection (we send you photos of any rot we find before replacing decking). What's helpful: be reachable by phone for any decision points (deck repair cost, unexpected discoveries), and be home for the end-of-day walk-around if you can — that's when we confirm completion together.
What if it rains during my project?
We watch the forecast carefully and reschedule before tear-off begins if rain is forecast for the install day. Once tear-off has started, your home stays weatherproof — we never strip more than we can dry-in same day. If unexpected rain hits mid-tear-off, we pause tear-off, tarp the section, wait it out, and resume when conditions allow. Multi-day projects always end with full weather-tight coverage at the end of each work day.
How loud is roof replacement?
Tear-off is the loudest part — comparable to heavy construction next door (85–95 dB measured at the eaves, lower inside the home). Air-nailing during install is a sharper percussive sound, but quieter than tear-off. Working from home during the project is possible but not pleasant; most clients schedule meetings off-site or work from a coffee shop on install day. Noise typically runs 7am–4pm with the heaviest tear-off in the first 2–3 hours.
Will the crew need to use my bathroom or kitchen?
No — we bring our own portable water for the crew and our trucks are equipped for self-sufficient days. The crew doesn't need access inside your home for any reason during a standard reroof. If we discover something during the tear-off that requires interior access (e.g., to look at attic ventilation), we'll ask permission first.
What happens to all the old shingles?
Loaded into the dump trailer during tear-off, hauled to a licensed C&D (construction and demolition) recycling facility, where roofing material is processed and partially recycled into road-base aggregate. For a typical 18–22 square reroof we generate 2.5–4 tons of debris. Disposal is included in our quote; you don't pay separately.
Do I need to be there for the township final inspection?
No — we coordinate the final inspection directly with the township and let you know when it's scheduled. The inspector visits during business hours and doesn't need access inside the home (they inspect from the exterior). We attend the inspection on your behalf and send you the signed Certificate of Approval when it passes. Most NJ townships close out within 7–14 business days of project completion.
What if a nail goes through the ceiling or into the attic?
It shouldn't, and almost never does — modern nailers and proper nail-length selection prevent over-driving. But if it ever happens, that's our problem to fix, not yours. Our $2M general liability insurance covers any incidental damage to the property; you don't pay deductibles or out-of-pocket for our crew's mistakes.
What's in your end-of-day walk-around?
We walk the perimeter with you (or video-record it if you're not home), point out: (1) magnetic sweep results — we show the nails we collected so you know the lawn is clear, (2) drip-edge and flashing details — confirm they look right, (3) any unexpected discoveries from the day (deck repair, found-issues), (4) what's left for tomorrow if multi-day, (5) what to watch for in the next 48 hours. We don't consider the project complete until you've signed off on the walk-around.
Get a free written quote — no pressure
We give you a full written scope, line-item pricing, day-count, and the answers to whatever questions you have. No high-pressure sales, no "today-only" deals, no upsell games. You decide on your timeline.