Permit
Expect a building permit
Massachusetts exempts sheds, fences and finish work from permits (R105.2), not roofing. In Rochester the building department takes the application, with the contractor’s home improvement registration on it.
Roof Replacement in Rochester, MA
Rochester has 2,255 homes, and half of them were standing by 1984. Below: what the code asks of a replacement here, the permit, and the town’s own records.
New Roofing Costs connects homeowners with independent local roofing contractors. We do not perform roofing work.
Call (833) 781-1806 Replacement and new roofs only · homeowners
This number connects homeowners who are planning a new roof or a full roof replacement with independent local roofing contractors. It is not for leak repairs or patch jobs. The call must come from the homeowner who decides on the roof. Calls may be recorded.
The rules for a reroof in Rochester
Layers
Two layers means a tear-off
On a roof that already carries two layers, or slate or tile, the code allows no recover: it is a tear-off (IRC R908.3.1.1). 46% of Rochester’s homes were built before 1980; many have been reroofed before.
Source: IRC 2021, Chapter 9 (Pennsylvania edition, UpCodes); 780 CMR 51.00, Chapter 9 amendments
Ice barrier
Required statewide
Massachusetts answers “yes” to the ice barrier for every town. It runs from the eave to 24 inches inside the exterior wall, more on steep roofs (IRC R905.1.2); check that the quote lists it.
Source: 780 CMR 51.00, Chapter 3 amendments (Tables R301.2(1) and R301.2(2)); IRC 2021, Chapter 9 (Pennsylvania edition, UpCodes)
Wind and snow
129 mph design wind, 30 psf ground snow
Rochester’s code design values are a 129 mph ultimate design wind speed and a 30 psf ground snow load (30 psf minimum flat-roof snow load). At that wind speed the code calls for asphalt shingles labeled ASTM D7158 Class G or H (Table R905.2.4.1).
Source: 780 CMR 51.00, Chapter 3 amendments (Tables R301.2(1) and R301.2(2)); IRC 2021, Chapter 9 (Pennsylvania edition, UpCodes) (780 CMR 51.00, Table R301.2(2))
Checked against the code text on October 24, 2026. Everything else the state requires: roof replacement in Massachusetts.
Homes and roofs in Rochester
Owners live in 1,970 of Rochester’s occupied homes, or 88%. Counting by decade, 13% before 1940, 26% before 1960, 46% before 1980 of the housing was in place, and 21% dates from 2000 on. (ACS 2020–2024.)
The housing is 95% detached houses.
Of the 27 Plymouth County municipalities on this site, Rochester has the 25th largest share of homes built before 1980: 46%, against a county range of 42% to 81%.
ZIP codes: 02770
Rochester and the towns around it
| Place | Median built | Before 1980 | Owners | Row, twin | Hail days |
|---|---|---|---|---|---|
| Rochester | 1984 | 46% | 88% | 2% | 6 |
| Acushnet | 1968 | 70% | 85% | 2% | 5 |
| Marion | 1962 | 68% | 91% | 0% | 2 |
| Mattapoisett | 1971 | 61% | 85% | 4% | 5 |
| Wareham | 1958 | 72% | 84% | 3% | 3 |
| Lakeville | 1984 | 42% | 84% | 3% | 4 |
Median built: median year the homes were built. Before 1980: share of homes built then. Owners: share of homes that are owner-occupied. Row, twin: share of homes that are rowhouses, twins or townhouses. Census ACS 2020–2024. Hail days: days with hail of 1 inch or larger within 10 miles, 2006–2025, NOAA Storm Prediction Center.
Hail and storms near Rochester
Since 2006 the National Weather Service has logged hail of 1 inch or larger on 6 separate days within 10 miles of Rochester; the largest was 1.75 in on August 22, 2020. The most recent was August 26, 2024.
That is fewer than most places in the state on this site (median 10 days).
At the county level, Rochester shares Plymouth County’s record of 8 storm disaster declarations since 2006, the newest DR-4651 (Severe Winter Storm and Snowstorm, April 2022). (OpenFEMA.)
Storm reports are what observers logged, not a measure of damage to any roof. When wind or hail damage means a new roof.
What goes on the roof next
HUD’s useful-life figures are for planning; a warranty is a separate promise. For Rochester’s houses: More in the guides to shingles, metal, slate and flat roofs.
| Material | HUD useful life | Fits a house like | Watch for |
|---|---|---|---|
| Asphalt shingles | 20 years | Most pitched roofs; 95% of homes here are detached | Class G or H at 129 mph design wind (IRC Table R905.2.4.1) |
| Metal (standing seam, panels) | 50 years | Roofs that will carry solar later | A complete standing-seam system may go over the old roof (R908.3.1) |
| Slate | 75 years | Older houses; 13% here predate 1940 | Sound slate can be reused (R908.5); broken slate cannot |
| Flat roof: EPDM or TPO | 15 years | Additions and porch roofs | Seams at walls and drainage |
Checking a contractor in Massachusetts
For an owner-occupied home of one to four units in Rochester, the contractor must be registered under the home improvement law (M.G.L. c. 142A), and a construction supervisor licensed (CSL) for roof covering supervises a permitted reroof. Ask for both numbers.
Contracts, deposits and the right to cancel: checking a roofing contractor. What moves the price: new roof cost in Massachusetts.
Questions about a new roof in Rochester
Do I need a permit to replace a roof in Rochester?
Expect a building permit. Massachusetts exempts sheds, fences and finish work from permits (R105.2), not roofing. In Rochester the building department takes the application, with the contractor’s home improvement registration on it.
Can a new roof go over the old one in Rochester?
On a roof that already carries two layers, or slate or tile, the code allows no recover: it is a tear-off (IRC R908.3.1.1). 46% of Rochester’s homes were built before 1980; many have been reroofed before.
When were most homes in Rochester built?
By the Census Bureau’s American Community Survey (2020–2024), the median home in Rochester was built in 1984, 46% of homes were built before 1980, 88% are owner-occupied.
How often does hail hit Rochester?
Hail of 1 inch or larger was reported on 6 days within 10 miles of Rochester from 2006 through 2025 (NOAA Storm Prediction Center). A report means hail fell nearby, not that a roof was damaged.
What license or registration should a roofer in Rochester have?
For an owner-occupied home of one to four units in Rochester, the contractor must be registered under the home improvement law (M.G.L. c. 142A), and a construction supervisor licensed (CSL) for roof covering supervises a permitted reroof. Ask for both numbers.
What they will ask on the phone
- Your address or ZIP code in Rochester
- How many stories the house has, and whether it is detached or attached
- What covers the roof now and about when it went on
- Whether there is one layer or more, if you know
- That the job is a full replacement or a new roof, and your timing
- Whether the house is in a historic district or an HOA
- That you own the home and decide on the roof
The full list: before you call.