Roof Replacement in Plympton, MA

Plympton has 1,251 homes, and half of them were standing by 1981. 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.

A Massachusetts Cape Cod house with a new shingle roof after light snow

The rules for a reroof in Plympton

Permit

Expect a building permit

Massachusetts exempts sheds, fences and finish work from permits (R105.2), not roofing. In Plympton the building department takes the application, with the contractor’s home improvement registration on it.

Source: 780 CMR 51.00, Chapter 1 amendments (R105)

Layers

One old layer can stay; two cannot

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). 48% of Plympton’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

126 mph design wind, 30 psf ground snow

Plympton’s code design values are a 126 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. The state’s code edition and the rest of its rules: roof replacement in Massachusetts.

Homes and roofs in Plympton

Of 1,065 occupied homes in Plympton, 991 (93%) are owner-occupied. Counting by decade, 22% before 1940, 24% before 1960, 48% before 1980 of the housing was in place, and 12% dates from 2000 on. (ACS 2020–2024.)

The housing is 95% detached houses.

Of the 27 Plymouth County municipalities on this site, Plympton has the 22nd largest share of homes built before 1980: 48%, against a county range of 42% to 81%.

ZIP codes: 02367

Plympton and the towns around it

Place	Median built	Before 1980	Owners	Row, twin	Hail days
Plympton	1981	48%	93%	1%	7
Kingston	1982	47%	81%	3%	7
Halifax	1979	53%	96%	8%	8
Carver	1980	51%	89%	2%	6
Middleborough	1979	51%	77%	5%	5
Hanson	1972	61%	89%	7%	8

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 Plympton

NOAA’s storm reports show 7 days since 2006 with hail of at least 1 inch inside a 10-mile circle around Plympton, topping out at 2 in on May 24, 2009. The most recent was July 14, 2022.

That is fewer than most places in the state on this site (median 10 days).

At the county level, Plympton 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 Plympton’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 126 mph design wind (IRC Table R905.2.4.1)
Metal (standing seam, panels)	50 years	Low pitches and long runs	A complete standing-seam system may go over the old roof (R908.3.1)
Slate	75 years	Older houses; 22% here predate 1940	Never a base for a new layer (R908.3.1.1); heavy
Flat roof: EPDM or TPO	15 years	Additions and porch roofs	Coating is not a replacement

Checking a contractor in Massachusetts

In Plympton the contractor’s HIC registration (M.G.L. c. 142A) and the CSL of the supervisor licensed for roof covering are the two numbers to look up before signing.

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 Plympton

Does a roof replacement in Plympton need a permit?

Expect a building permit. Massachusetts exempts sheds, fences and finish work from permits (R105.2), not roofing. In Plympton the building department takes the application, with the contractor’s home improvement registration on it.

Is a roof-over allowed in Plympton, or is it a tear-off?

When were most homes in Plympton built?

By the Census Bureau’s American Community Survey (2020–2024), the median home in Plympton was built in 1981, 48% of homes were built before 1980, 93% are owner-occupied.

Does Plympton get hail that damages roofs?

Hail of 1 inch or larger was reported on 7 days within 10 miles of Plympton 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 Plympton have?