The median home in Avon was built in 1979; there are 8,068 of them. What the code requires when that roof is replaced, and who signs off, is below.
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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
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 Avon is past that line; the town building official issues the permit.
Layers
IRC R908.3.1.1 forbids roofing over two existing layers, over slate or tile, or over a water-soaked roof. With 52% of Avon’s homes were built before 1980, ask what is under the newest layer.
Source: IRC 2021, Chapter 9 (Pennsylvania edition, UpCodes); 2022 Connecticut State Building Code
Ice barrier
There is no local exception: the state table says “yes.” Membrane or doubled underlayment, eave to 24 inches inside the wall line (IRC R905.1.2), is a line on every quote here.
Source: 2022 Connecticut State Building Code; IRC 2021, Chapter 9 (Pennsylvania edition, UpCodes)
Deck joints
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.
Wind and snow
Avon’s code design values are a 120 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).
Source: 2022 Connecticut State Building Code; IRC 2021, Chapter 9 (Pennsylvania edition, UpCodes) (2022 CSBC, Appendix AY)
Checked against the code text on October 24, 2026. Everything else the state requires: roof replacement in Connecticut.
85% of the occupied homes in Avon are lived in by their owners: 6,468 households, the people this line is for. Counting by decade, 5% before 1940, 16% before 1960, 52% before 1980 of the housing was in place, and 16% dates from 2000 on. (ACS 2020–2024.)
The housing is 72% detached houses, 11% attached single-family houses (rowhouses, twins and townhouses), 7% buildings of two to four units.
Of the 29 Hartford County municipalities on this site, Avon has the 25th largest share of homes built before 1980: 52%, against a county range of 48% to 87%.
ZIP codes: 06001
| Place | Median built | Before 1980 | Owners | Row, twin | Hail days |
|---|---|---|---|---|---|
| Avon | 1979 | 52% | 85% | 11% | 13 |
| Farmington | 1980 | 49% | 74% | 10% | 12 |
| West Hartford | 1954 | 87% | 67% | 3% | 12 |
| Burlington | 1981 | 48% | 95% | 4% | 13 |
| Canton | 1976 | 56% | 84% | 8% | 12 |
| Simsbury | 1973 | 65% | 75% | 4% | 9 |
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.
Within 10 miles of Avon, hail of an inch or more was reported on 13 days between 2006 and 2025, the biggest stones 2 in on June 26, 2009. The most recent was August 26, 2024.
That is more hail days than 87% of the places in the state on this site.
At the county level, Avon shares Hartford County’s record of 6 storm disaster declarations since 2006, the newest DR-4580 (Tropical Storm Isaias, January 2021). (OpenFEMA.)
Storm reports are what observers logged, not a measure of damage to any roof. When wind or hail damage means a new roof.
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; 72% of homes here are detached | Class G or H at 120 mph design wind (IRC Table R905.2.4.1) |
| Metal (standing seam, panels) | 50 years | Low pitches and long runs | A complete standing-seam system may go over the old roof (R908.3.1) |
| Slate | 75 years | Older houses; 5% 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 | Where the roof meets a wall or parapet |
Whoever quotes a roof in Avon 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)).
Contracts, deposits and the right to cancel: checking a roofing contractor. What moves the price: new roof cost in Connecticut.
The 25 percent line. A full replacement in Avon is past that line; the town building official issues the permit.
IRC R908.3.1.1 forbids roofing over two existing layers, over slate or tile, or over a water-soaked roof. With 52% of Avon’s homes were built before 1980, ask what is under the newest layer.
By the Census Bureau’s American Community Survey (2020–2024), the median home in Avon was built in 1979, 52% of homes were built before 1980, 85% are owner-occupied.
Hail of 1 inch or larger was reported on 13 days within 10 miles of Avon from 2006 through 2025 (NOAA Storm Prediction Center). A report means hail fell nearby, not that a roof was damaged.
Whoever quotes a roof in Avon 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)).
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.