Washington has 1,893 homes, and half of them were standing by 1971. Below: what the code asks of a replacement here, the permit, and the town’s own records.
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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
Replacing the whole roof crosses that line; Washington’s building department issues the permit.
Layers
On a roof that already carries two layers, or slate or tile, the code allows no recover: it is a tear-off (IRC R908.3.1.1). 66% of Washington’s homes were built before 1980; many have been reroofed before.
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
Washington’s code design values are a 115 mph ultimate design wind speed and a 35 psf ground snow load. At that wind speed the code calls for asphalt shingles labeled ASTM D7158 Class D, G or H (Table R905.2.4.1).
Source: 2022 Connecticut State Building Code; IRC 2021, Chapter 9 (Pennsylvania edition, UpCodes) (2022 CSBC, Appendix P (Risk Category II))
Checked against the code text on October 24, 2026. Everything else the state requires: roof replacement in Connecticut.
Of 1,399 occupied homes in Washington, 1,105 (79%) are owner-occupied. Counting by decade, 25% before 1940, 40% before 1960, 66% before 1980 of the housing was in place, and 15% dates from 2000 on. (ACS 2020–2024.)
The housing is 91% detached houses, 4% attached single-family houses (rowhouses, twins and townhouses).
16% of the homes in Washington are seasonal or occasional-use homes (ACS 2020–2024). If yours is one of them and you live elsewhere, the call still has to come from you as the owner.
Of the 26 Litchfield County municipalities on this site, Washington has the 12th largest share of homes built before 1980: 66%, against a county range of 35% to 79%.
ZIP codes: 06777 · 06793 · 06794
| Place | Median built | Before 1980 | Owners | Row, twin | Hail days |
|---|---|---|---|---|---|
| Washington | 1971 | 66% | 79% | 4% | 12 |
| Bethlehem | 1976 | 59% | 70% | 1% | 11 |
| Warren | 1984 | 43% | 93% | 1% | 13 |
| Morris | 1967 | 63% | 89% | 3% | 13 |
| New Milford | 1975 | 59% | 80% | 4% | 8 |
| Roxbury | 1981 | 47% | 83% | 0% | 8 |
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 Washington, hail of an inch or more was reported on 12 days between 2006 and 2025, the biggest stones 1.75 in on July 1, 2012. The most recent was September 6, 2025.
That is more hail days than 77% of the places in the state on this site.
At the county level, Washington shares Litchfield County’s record of 9 storm disaster declarations since 2006, the newest DR-4820 (Severe Storm, Flooding, Landslides, and Mudslides, September 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.
HUD’s useful-life figures are for planning; a warranty is a separate promise. For Washington’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; 91% of homes here are detached | Class D, G or H at 115 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; 25% here predate 1940 | Sound slate can be reused (R908.5); broken slate cannot |
| Flat roof: EPDM or TPO | 15 years | Additions and porch roofs | Where the roof meets a wall or parapet |
Whoever quotes a roof in Washington 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.
Needed beyond a quarter of the roof. Replacing the whole roof crosses that line; Washington’s building department issues the permit.
On a roof that already carries two layers, or slate or tile, the code allows no recover: it is a tear-off (IRC R908.3.1.1). 66% of Washington’s homes were built before 1980; many have been reroofed before.
By the Census Bureau’s American Community Survey (2020–2024), the median home in Washington was built in 1971, 66% of homes were built before 1980, 79% are owner-occupied.
Hail of 1 inch or larger was reported on 12 days within 10 miles of Washington 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 Washington 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.