Half of the 8,612 homes in Portsmouth were built before 1973. 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.
Permit
Rhode Island’s list of permit-exempt work names replacement window sashes but not roofing (SBC-2, R105.2). So Portsmouth’s building official issues a permit for the replacement.
Source: RI SBC-2, One and Two Family Dwellings (510-RICR-00-00-2)
Layers
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). 62% of Portsmouth’s homes were built before 1980, so count the layers before comparing quotes.
Source: RI SBC-2, One and Two Family Dwellings (510-RICR-00-00-2); IRC 2021, Chapter 9 (Pennsylvania edition, UpCodes)
Ice barrier
Rhode Island 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: RI SBC-2, One and Two Family Dwellings (510-RICR-00-00-2); IRC 2021, Chapter 9 (Pennsylvania edition, UpCodes)
Checked against the code text on October 24, 2026. Code edition, permit and contract rules for the whole state: roof replacement in Rhode Island.
Of 7,541 occupied homes in Portsmouth, 6,085 (81%) are owner-occupied. Counting by decade, 15% before 1940, 33% before 1960, 62% before 1980 of the housing was in place, and 15% dates from 2000 on. (ACS 2020–2024.)
The housing is 75% detached houses, 8% attached single-family houses (rowhouses, twins and townhouses), 9% buildings of two to four units, 3% manufactured homes.
Of the 6 Newport County municipalities on this site, Portsmouth has the 3rd largest share of homes built before 1980: 62%, against a county range of 57% to 85%.
ZIP codes: 02871 · 02872
| Place | Median built | Before 1980 | Owners | Row, twin | Hail days |
|---|---|---|---|---|---|
| Portsmouth | 1973 | 62% | 81% | 8% | 4 |
| Middletown | 1969 | 64% | 58% | 8% | 4 |
| Tiverton | 1972 | 59% | 81% | 6% | 4 |
| Bristol | 1964 | 68% | 66% | 4% | 8 |
| Jamestown | 1975 | 57% | 86% | 1% | 5 |
| Newport | 1938 | 85% | 50% | 5% | 5 |
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.
NOAA’s storm reports show 4 days since 2006 with hail of at least 1 inch inside a 10-mile circle around Portsmouth, topping out at 1.75 in on June 24, 2008. The most recent was May 8, 2024.
That is fewer than most places in the state on this site (median 8 days).
At the county level, Portsmouth shares Newport County’s record of 8 storm disaster declarations since 2006, the newest DR-4766 (Severe Storms and Flooding, March 2024). (OpenFEMA.)
Storm reports are what observers logged, not a measure of damage to any roof. When wind or hail damage means a new roof.
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; 75% 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; 15% here predate 1940 | Sound slate can be reused (R908.5); broken slate cannot |
| Flat roof: EPDM or TPO | 15 years | Additions and porch roofs | Coating is not a replacement |
For a reroof in Portsmouth, 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.
Contracts, deposits and the right to cancel: checking a roofing contractor. What moves the price: new roof cost in Rhode Island.
A permit from Portsmouth. Rhode Island’s list of permit-exempt work names replacement window sashes but not roofing (SBC-2, R105.2). So Portsmouth’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). 62% of Portsmouth’s homes were built before 1980, so count the layers before comparing quotes.
By the Census Bureau’s American Community Survey (2020–2024), the median home in Portsmouth was built in 1973, 62% of homes were built before 1980, 81% are owner-occupied.
Hail of 1 inch or larger was reported on 4 days within 10 miles of Portsmouth from 2006 through 2025 (NOAA Storm Prediction Center). A report means hail fell nearby, not that a roof was damaged.
For a reroof in Portsmouth, 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.
The full list: before you call.
Checked October 24, 2026. Laws and code editions change; the date says when these were last read at the source.