Our work in Greenwich
12 completed roofs in Greenwich to date, counted from our own records. Greenwich sits 26 miles from our Bethel base.
Greenwich covers 47.7 square miles in Fairfield County. Shoreline exposure changes the metal. On the 24 coastal towns, including this one, we upgrade fasteners and flashing rather than use the inland default.
Neighborhoods and villages here include Banksville, Belle Haven, Byram, Cos Cob, Glenville, Indian Field, Mianus, North Greenwich, North Mianus, Old Greenwich, Pemberwick and Pine Hill among others. What is on the roofs differs across them, and so does what should go back on.
Design criteria for a Greenwich roof
For Greenwich, the governing figure is an ultimate design wind speed of 120 mph (93 mph nominal), straight out of Appendix AY of the 2022 state code. Statewide, 147 municipalities carry an equal or higher rating. As in every Connecticut town, a tear-off here triggers the sealed roof deck rule.
The code assigns Greenwich a ground snow load of 30 psf. Baseline loading for the state, which puts the emphasis on eave detailing rather than on structure.
Connecticut amendments that apply here
Two Connecticut amendments matter on almost every job. The first is statewide ice barrier, R905.1.2: from the lowest edge of the roof to a point 24 inches or more inside the exterior wall line, measured on the slope. On a shallow pitch that is a surprising amount of membrane. The second is R905.1.1, the sealed roof deck rule, which has an exception for lumber sheathing of less than 3 feet nominal width — common on older housing stock here.
It matters here because 69.4% of Greenwich homes predate 1980 - the median was built around 1963 - so plank decking and older fastening turn up regularly on tear-offs in this town.
On nailing, be careful who you believe. Connecticut's code minimum is four nails per shingle. Six is what the shingle manufacturers require to keep a wind warranty in force, and six is what we install — but that is a manufacturer requirement, not a code requirement. A contractor telling you the code demands six is either mistaken or selling.
The weather a Greenwich roof lives with
Here is what a roof in Greenwich is up against, measured rather than guessed: NOAA's 1991-2020 normals from the closest thirty-year weather record, about 7 miles from the center of town at Stamford 5 N.
Snow: 34 inches in an average year, which is on the lighter side for Connecticut. It falls across roughly 10 days that leave an inch or more, and 4 that leave three inches or more. The weight is not usually the problem. The problem is melt that refreezes at the cold edge of the roof and forces water back up under the courses, which is exactly what the ice barrier at the eaves is for.
Freeze-thaw: about 119 nights a year drop below freezing, and 16 days never climb above it. Each of those nights works on whatever is already loose - a lifted tab, a tired boot around a pipe, a nail that has backed out. Winter finds the weak spot and makes it bigger.
Rain: 52 inches a year, including about 16 days when an inch or more falls in a single day and 3 that top two inches. Volume like that finds a tired valley, an undersized gutter or a kick-out flashing that was never installed. Those are the three places we look first on an older roof here.
The town center is about 207 feet up - middling for Connecticut, where every few hundred feet of elevation adds snow and takes away melting days.
Source: NOAA 1991-2020 U.S. Climate Normals, station Stamford 5 N (7 miles from Greenwich).
What has actually hit Greenwich since 2015
What has Greenwich actually been hit by? NOAA's Storm Events Database, 2015-2026, within ten miles of the center of town, says this.
25 damaging-wind reports, the strongest put at 70 mph. In this part of the state wind is what takes roofs apart, and it does it quietly: lifted tabs reseal crookedly, seal strips fail, and the roof looks untouched from the street.
1 hail report, the largest 1 inch across - about the size of a quarter. That is bruising hail rather than shattering hail. It knocks the protective granules loose in patches, the asphalt underneath bakes, and the roof gives up early without ever looking damaged.
Also on the record: 1 confirmed tornado touched down inside the same circle and the National Weather Service logged 31 winter-storm, heavy-snow or ice-storm events for Fairfield County over the same years.
None of that means a roof is damaged. It means it is worth looking. An inspection in Greenwich costs nothing, you get the photographs whatever we find, and the storm damage report collects the evidence in one document if you need it.
Source: NOAA NCEI Storm Events Database, reports within 10 miles of the center of Greenwich, 2015-2026.
Permits and inspections in Greenwich
Permits for roof work in Greenwich go through the town building department. The building official on record is John Vallerie. The office is staffed full-time, so inspections here are generally easy to schedule. The published number is 203-622-7755. Written questions go to john.vallerie@greenwichct.org. Permitting is on us, not on you. A contractor asking a homeowner to pull the roofing permit is shifting liability, and you should treat it that way.
A roof replacement permit in Connecticut is generally issued over the counter or online once the scope is submitted, with an inspection at completion. Where a house sits in a local historic district, or where zoning or health review applies, that approval comes first and can add real time. If your property is affected, we will tell you before the contract is signed rather than after the dumpster arrives.
Greenwich's older housing and the roof rules that follow from it
Greenwich's housing is older than its planning region's as a whole. Census Bureau estimates for 2019–2023 put 25 percent of the town's 25,525 housing units before 1940, against 16.2 percent across the Western Connecticut Planning Region and 20.4 percent statewide. Another 22.4 percent went up between 1940 and 1959. The median year built is 1963, making the typical Greenwich house about 63 years old in 2026; the region's median is 1971 and Connecticut's 1967. In all, 69.4 percent of units predate 1980, against 63.1 percent in the region.
Age brings materials other than asphalt into the picture. InterNACHI's life expectancy chart gives slate 60 to 150 years and metal 40 to 80, against about 30 for architectural asphalt shingles. Where an older house still carries slate or tile, covering it is not an option: IRC R908.3.1.1 bars laying a new roof over slate, clay, cement or asbestos-cement tile, and over any roof that already has two or more applications. The realistic choices on those houses are repair or full replacement, and the chart's own note applies: roof life depends on local weather, building design, material quality and maintenance.
Metal details are judged on their own condition. R908.5 requires existing flashings, edgings, outlets and vents to be replaced when they are rusted, damaged or deteriorated, not reused under a new roof. On houses with several chimneys, dormers and wall intersections, that part of the job can be substantial.
Single-family detached houses make up 62.9 percent of Greenwich units, a little above Connecticut's 58.7, while 14.1 percent are in buildings of two to four units and 15.1 percent in buildings of five or more. Owners occupy 68.8 percent of occupied homes. The pre-1980 share includes the pre-1978 housing that EPA's Renovation, Repair and Painting rule covers when paid work disturbs painted surfaces, such as trim or fascia removed with a roof; exterior work disturbing 20 square feet or less of paint is excluded as a minor repair. At the newer end, 15.1 percent of units date from 2000 or later, a little below the region's 17.6 percent. The table below shows every bracket.
| Housing (ACS 2019–2023) | Greenwich | Connecticut |
|---|---|---|
| Housing units | 25,525 | 1,536,049 |
| Owner-occupied homes | 15,684 | 939,912 |
| Share owner-occupied | 68.8% | 66.2% |
| Single-family detached | 62.9% | 58.7% |
| Median year built | 1963 | 1967 |
| Built before 1940 | 25.0% | 20.4% |
| Built 1940–1979 | 44.4% | 47.4% |
| Built 1980–1999 | 15.4% | 20.5% |
| Built 2000 or later | 15.1% | 11.8% |
Source: U.S. Census Bureau, American Community Survey 2019–2023 5-year estimates, tables B25001, B25003, B25024, B25034, B25035. Estimates carry a margin of error, which is wider in smaller towns.
How Greenwich compares with the towns around it
Greenwich shares its design wind figure with its one neighbor, so specifications carry across these town lines cleanly. The permit process does not — each town runs its own.
| Bordering town | Design wind | vs. Greenwich | Ground snow | County |
|---|---|---|---|---|
| Stamford | 120 mph | same | 30 psf | Fairfield |
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Common questions about roofing in Greenwich
Have you worked in Greenwich before?
Yes. Our records show 12 completed roofs in Greenwich. That count comes from our own job history.
Who is the building official in Greenwich?
John Vallerie is the building official on record for Greenwich, per the State of Connecticut list of municipal building officials. Staffing changes — confirm with the town before relying on it.
Do I need a permit to replace a roof in Greenwich?
Yes. A roof replacement in Greenwich requires a building permit, and we pull it as part of the job. The building department's published number is 203-622-7755 if you want to confirm anything independently.
Is ice barrier required on a Greenwich roof?
Yes — Connecticut requires it statewide under code section R905.1.2, running from the lowest roof edge to at least 24 inches inside the exterior wall line. With a 30 psf ground snow load in Greenwich, that detail is doing real work.
What wind speed does a roof in Greenwich have to be designed for?
The 2022 Connecticut State Building Code assigns Greenwich an ultimate design wind speed of 120 mph. That figure sets the fastener schedule and the manufacturer wind rating we specify.
How many nails per shingle should be used in Greenwich?
Connecticut's code minimum is four. Shingle manufacturers require six to keep their wind warranty in force, and six is what we install. Six nails is a manufacturer requirement, not a code requirement.
Does Greenwich get hail?
Yes, though it is not the main risk here. NOAA has 1 confirmed hail report within ten miles of Greenwich since 2015, the largest 1 inch across. Hail that size bruises shingles and knocks granules loose rather than punching holes, so the damage is easy to miss from the ground and worth a proper look after a summer storm.
Are ice dams a problem in Greenwich?
They are the winter problem worth planning for. The nearest long-record station averages 34 inches of snow a year across about 10 days that leave an inch or more, and roughly 119 nights below freezing. That is the exact recipe for melt at the warm middle of a roof refreezing at the cold eave. Connecticut's code answer is an ice barrier at the eaves; the practical answer is that plus attic insulation and ventilation that keep the roof deck cold.
Design criteria are taken from Appendix AY of the 2022 Connecticut State Building Code. Building department details come from the State of Connecticut list of municipal building officials, updated 04-06-2026. Municipal staffing and personnel change — confirm current details with the town. Stallion Ridge Exteriors is a service-area business based in Bethel, Connecticut.