Roof Replacement in Bridgewater, MA

Bridgewater has 9,429 homes, and half of them were standing by 1984. The rules below decide how much of the old roof has to come off and what goes under the new one.

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 Bridgewater

Permit

A permit from Bridgewater

Roofing is not on the Massachusetts list of work exempt from a permit (780 CMR 51.00, R105.2). In Bridgewater 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). 45% of Bridgewater’s homes were built before 1980, so count the layers before comparing quotes.

Source: IRC 2021, Chapter 9 (Pennsylvania edition, UpCodes); 780 CMR 51.00, Chapter 9 amendments

Ice barrier

Required in Bridgewater

There is no local exception: the state table says “yes.” That is a self-adhering membrane, or two cemented layers of underlayment, from the eave to at least 24 inches inside the wall line (IRC R905.1.2).

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

125 mph design wind, 30 psf ground snow

Bridgewater’s code design values are a 125 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))

Rules as read on October 24, 2026. The state’s code edition and the rest of its rules: roof replacement in Massachusetts.

Homes and roofs in Bridgewater

Owners live in 6,876 of Bridgewater’s occupied homes, or 76%. By year built, 12% before 1940, 21% before 1960, 45% before 1980; 25% went up in 2000 or later. (ACS 2020–2024.)

By building type: 64% detached houses, 8% attached single-family houses (rowhouses, twins and townhouses), 9% buildings of two to four units.

Of the 27 Plymouth County municipalities on this site, Bridgewater has the 26th largest share of homes built before 1980: 45%, against a county range of 42% to 81%.

ZIP codes: 02324 · 02325

Bridgewater and the towns around it

Place	Median built	Before 1980	Owners	Row, twin	Hail days
Bridgewater	1984	45%	76%	8%	9
West Bridgewater	1963	69%	82%	4%	10
Raynham	1986	42%	78%	1%	6
East Bridgewater	1977	54%	83%	3%	11
Halifax	1979	53%	96%	8%	8
Whitman	1957	73%	71%	11%	10

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.

Storm record around Bridgewater

NOAA’s storm reports show 9 days since 2006 with hail of at least 1 inch inside a 10-mile circle around Bridgewater, topping out at 1.75 in on August 22, 2020. The most recent was August 15, 2024.

Federal major-disaster declarations for storms in Plymouth County since 2006: 8, most recently DR-4651, Severe Winter Storm and Snowstorm, declared April 2022. (OpenFEMA.)

A report says hail fell near Bridgewater, not that it damaged a roof. When wind or hail damage means a new roof.

What goes on the roof next

Lifespans come from HUD’s capital-needs table, not from a brochure. 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; 64% of homes here are detached	Class G or H at 125 mph design wind (IRC Table R905.2.4.1)
Metal (standing seam, panels)	50 years	Low pitches and long runs	Standing seam that carries its own loads can skip the tear-off (R908.3.1)
Slate	75 years	Older houses; 12% here predate 1940	Never a base for a new layer (R908.3.1.1); heavy
Flat roof: EPDM or TPO	15 years	Porches, additions, low-slope rears	Seams at walls and drainage

Checking a contractor in Massachusetts

In Bridgewater 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.

The price side is in what a new roof costs in Massachusetts; the paperwork side in checking a roofing contractor.

Questions about a new roof in Bridgewater

Is a permit required for a new roof in Bridgewater, MA?

A permit from Bridgewater. Roofing is not on the Massachusetts list of work exempt from a permit (780 CMR 51.00, R105.2). In Bridgewater the building department takes the application, with the contractor’s home improvement registration on it.

Do the old shingles have to come off in Bridgewater?

How old are the houses in Bridgewater?

By the Census Bureau’s American Community Survey (2020–2024), the median home in Bridgewater was built in 1984, 45% of homes were built before 1980, 76% are owner-occupied.

Does Bridgewater get hail that damages roofs?

Hail of 1 inch or larger was reported on 9 days within 10 miles of Bridgewater from 2006 through 2025 (NOAA Storm Prediction Center). A report means hail fell nearby, not that a roof was damaged.

How do I check a roofing contractor in Bridgewater?