Half of the 5,607 homes in Warren were built before 1950. 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 Warren
Permit
A permit from Warren
Rhode Island’s list of permit-exempt work names replacement window sashes but not roofing (SBC-2, R105.2). So Warren’s building official issues a permit for the replacement.
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). 80% of Warren’s homes were built before 1980, so count the layers before comparing quotes.
The state’s climate table marks the ice barrier “yes” statewide. 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.
Owners live in 3,154 of Warren’s occupied homes, or 61%. Counting by decade, 45% before 1940, 60% before 1960, 80% before 1980 of the housing was in place, and 5% dates from 2000 on. (ACS 2020–2024.)
The housing is 53% detached houses, 5% attached single-family houses (rowhouses, twins and townhouses), 26% buildings of two to four units.
Older houses hide their history: ask the contractor to confirm the deck (board or sheet) and every layer above it before pricing, because slate or two layers mean a full tear-off.
Of the 3 Bristol County municipalities on this site, Warren has the 2nd largest share of homes built before 1980: 80%, against a county range of 68% to 84%.
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 Warren
Within 10 miles of Warren, hail of an inch or more was reported on 8 days between 2006 and 2025, the biggest stones 2 in on July 18, 2012. The most recent was August 26, 2024.
At the county level, Warren shares Bristol County’s record of 6 storm disaster declarations since 2006, the newest DR-4653 (Severe Winter Storm and Snowstorm, May 2022). (OpenFEMA.)
Useful life is HUD’s planning figure, not a warranty. 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; 53% of homes here are detached
Wind class set by the design wind speed (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; 45% 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
Seams at walls and drainage
Checking a contractor in Rhode Island
For a reroof in Warren, ask for the contractor’s Rhode Island registration with the Contractors’ Registration and Licensing Board (ch. 5-65) and look it up; the state has no separate license for residential roofing.
Is a permit required for a new roof in Warren, RI?
A permit from Warren. Rhode Island’s list of permit-exempt work names replacement window sashes but not roofing (SBC-2, R105.2). So Warren’s building official issues a permit for the replacement.
Do the old shingles have to come off in Warren?
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). 80% of Warren’s homes were built before 1980, so count the layers before comparing quotes.
When were most homes in Warren built?
By the Census Bureau’s American Community Survey (2020–2024), the median home in Warren was built in 1950, 80% of homes were built before 1980, 61% are owner-occupied.
Does Warren get hail that damages roofs?
Hail of 1 inch or larger was reported on 8 days within 10 miles of Warren 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 Warren have?
For a reroof in Warren, ask for the contractor’s Rhode Island registration with the Contractors’ Registration and Licensing Board (ch. 5-65) and look it up; the state has no separate license for residential roofing.
What they will ask on the phone
The street address in Warren, 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