Half of the 3,316 homes in Brooklyn were built before 1978. 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.
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 Brooklyn
Permit
Needed beyond a quarter of the roof
Without a permit, Connecticut allows only:
Repairs that are limited to 25 percent of roof covering and building siding within one calendar year.
2022 CSBC, (Amd) R105.2, item 11
A full replacement in Brooklyn is past that line; the town building official issues the permit.
A new roof may go over one existing layer; with two or more, or over slate, clay or cement tile, everything comes off to the deck (IRC R908.3.1.1). 52% of Brooklyn’s homes were built before 1980, so count the layers before comparing quotes.
The state’s climate table marks the ice barrier “yes” statewide. 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).
Connecticut adds a 4-inch self-adhering strip over all joints of a plywood or OSB deck ((Amd) R905.1.1). It is not needed under a fully adhered membrane, or on board decks under 3 feet wide.
Brooklyn’s code design values are a 125 mph ultimate design wind speed and a 35 psf ground snow load; it is in Connecticut’s hurricane-prone region. At that wind speed the code calls for asphalt shingles labeled ASTM D7158 Class G or H (Table R905.2.4.1).
Checked against the code text on October 24, 2026. Code edition, permit and contract rules for the whole state: roof replacement in Connecticut.
Homes and roofs in Brooklyn
Owners live in 2,484 of Brooklyn’s occupied homes, or 82%. Counting by decade, 16% before 1940, 29% before 1960, 52% before 1980 of the housing was in place, and 23% dates from 2000 on. (ACS 2020–2024.)
The housing is 78% detached houses, 3% attached single-family houses (rowhouses, twins and townhouses), 9% buildings of two to four units.
Of the 15 Windham County municipalities on this site, Brooklyn has the 8th largest share of homes built before 1980: 52%, against a county range of 38% to 81%.
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 Brooklyn
NOAA’s storm reports show 4 days since 2006 with hail of at least 1 inch inside a 10-mile circle around Brooklyn, topping out at 1.75 in on July 3, 2025.
That is fewer than most places in the state on this site (median 9 days).
At the county level, Brooklyn shares Windham County’s record of 8 storm disaster declarations since 2006, the newest DR-4580 (Tropical Storm Isaias, January 2021). (OpenFEMA.)
HUD’s useful-life figures are for planning; a warranty is a separate promise. For Brooklyn’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; 78% 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
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; 16% here predate 1940
Can’t be roofed over; check the framing for the weight
Flat roof: EPDM or TPO
15 years
Additions and porch roofs
Coating is not a replacement
Checking a contractor in Connecticut
Whoever quotes a roof in Brooklyn should give you a Connecticut home improvement registration number (C.G.S. § 20-420); the state’s data portal listed 24,065 active ones in October 2026. Registration is not an endorsement of workmanship (§ 20-427(b)(6)).
Does a roof replacement in Brooklyn need a permit?
Needed beyond a quarter of the roof. A full replacement in Brooklyn is past that line; the town building official issues the permit.
Is a roof-over allowed in Brooklyn, or is it a tear-off?
A new roof may go over one existing layer; with two or more, or over slate, clay or cement tile, everything comes off to the deck (IRC R908.3.1.1). 52% of Brooklyn’s homes were built before 1980, so count the layers before comparing quotes.
When were most homes in Brooklyn built?
By the Census Bureau’s American Community Survey (2020–2024), the median home in Brooklyn was built in 1978, 52% of homes were built before 1980, 82% are owner-occupied.
How many hail days has Brooklyn had?
Hail of 1 inch or larger was reported on 4 days within 10 miles of Brooklyn 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 Brooklyn have?
Whoever quotes a roof in Brooklyn should give you a Connecticut home improvement registration number (C.G.S. § 20-420); the state’s data portal listed 24,065 active ones in October 2026. Registration is not an endorsement of workmanship (§ 20-427(b)(6)).
What they will ask on the phone
The street address in Brooklyn, or at least the ZIP code
The number of stories, and whether the house stands alone
What is on the roof now (asphalt shingles, metal, slate, tile, or a flat membrane) and roughly how old it is
How many layers are on it, if you know
Your timing for a complete replacement
Whether the house is in a historic district or an HOA