Roof Repair & Leak Repair in Connecticut

Where roofs let water in

Connecticut enforces the 2022 Connecticut State Building Code, which adopts the 2021 International Residential Code (IRC) with state amendments. The IRC requires flashing at wall and roof intersections, wherever a roof changes slope or direction, and around roof openings (R903.2.1). Connecticut does not amend the IRC’s flashing, valley or reroofing sections.

Chimneys and walls

Any chimney more than 30 inches wide needs a cricket or saddle on its ridge side (R903.2.2). Where shingles meet a sidewall, the base flashing must be continuous or step flashing at least 4 inches high and 4 inches wide, and it must direct water onto the roof or into the gutter (R905.2.8.3). Chimney flashing must be applied to the shingle manufacturer’s printed instructions (R905.2.8.4).

Vent pipes and skylights

Soil stacks and vent pipes must also be flashed to the shingle manufacturer’s printed instructions (R905.2.8.4). A unit skylight installed to code and flashed to its maker’s instructions may go without a cricket (R903.2.2). When a roof is re-covered or replaced, any existing flashing, edging, vent or similar device that is rusted, damaged or deteriorated must be replaced, not reused (R908.5).

Valleys and roof edges

Valley linings go down before the shingles. Linings the code allows include metal at least 24 inches wide for an open valley and, for a closed valley, one ply of smooth roll roofing at least 36 inches wide or a self-adhering ASTM D1970 membrane (R905.2.8.2). Shingle roofs need drip edge at the eaves and rakes, with underlayment over the drip edge along the eaves and under it along the rakes (R905.2.8.5).

Flat and slate roofs

A flat roof still has to drain: EPDM and TPO membrane roofs need a design slope of at least 1/4 inch per foot (R905.12.1, R905.13.1), although reroofing a roof that already drains positively does not have to meet that slope (R908.1). When slate is reinstalled during reroofing, damaged, cracked or broken slates cannot go back on (R908.5).

Ice dams and winter leaks

An ice dam needs three things: snow on the roof, an attic that is poorly air sealed or insulated, and freezing temperatures. Heat escaping into the attic warms the roof deck and melts the snow, and the water refreezes at the cold eaves. The U.S. Department of Energy’s Building America Solution Center says dams can form under as little as 2 inches of snow, and that water building up behind the dam can be drawn under the shingles and cause leaks. Its fixes, in order, are air sealing the ceiling below the attic, insulating the attic and ventilating the roof, so an ice-dam leak can call for attic work as well as roof repair.

Connecticut’s amended climate table marks ice barrier underlayment as required everywhere in the state (Table R301.2). On a house with an asphalt shingle, metal shingle, roll roofing, slate or wood roof, it runs from the lowest roof edge to at least 24 inches inside the exterior wall line, and at least 36 inches up the slope from the eave on roofs pitched 8 in 12 or steeper (R905.1.2). The code sets each town’s ground snow load at 30, 35 or 40 pounds per square foot (Appendix AY). Our Connecticut roofing code guide explains the statewide rules, and each town page gives its own figures.

What to do while the roof is leaking

1. Stay clear of wet wiring. Federal flood-safety guidance on Ready.gov says not to touch electrical equipment that is wet or while standing in water, and to turn off the electricity only if it is safe to do so.
2. Record the damage. The Connecticut Insurance Department’s Post-Disaster Claims Guide says to take photos or videos of the damaged areas.
3. Keep more water out. The same guide says to prevent further damage by covering the roof with a tarp or other waterproof material, and to keep all receipts for emergency repairs for your insurance company. We offer emergency roof tarping: call (203) 990-2444.
4. Talk to your insurer before permanent repairs. The guide warns that an insurance company may not pay for repairs it did not authorize.

Repair or replace?

Where repair ends and replacement begins depends on the roof, but the code draws several of the lines.

Permits

For one- and two-family homes and townhouses, Connecticut exempts repairs limited to 25 percent of the roof covering within one calendar year (R105.2). Anything larger needs a building permit before work starts (R105.1), and the exemption never allows work that breaks the code. In Westchester, Putnam and Dutchess Counties, Connecticut’s code does not apply; ask the local building department whether a repair needs a permit.

Layers and tear-offs

A new roof covering may not go over an existing roof that is water-soaked or deteriorated, over slate, clay, cement or asbestos-cement tile, or over two or more existing layers (R908.3.1.1). Replacing that roof means removing the existing layers down to the roof deck, although an ice barrier membrane adhered to the deck may stay under a new one (R908.3).

Rules for a new roof

Replacement roofing must meet the code’s roof assemblies chapter (R908.1). Under Connecticut’s amended underlayment rule, shingle, slate, tile, metal and wood roofs need a 4-inch strip of self-adhering ASTM D1970 membrane over all joints in the roof deck, with two exceptions, one of them an alternative using self-adhering underlayment (R905.1.1). Connecticut’s next building code was expected to take effect July 1, 2026, but the Department of Administrative Services says that date is delayed while the code awaits legislative approval.

For comparison, a full roof replacement with Stallion Ridge starts around $650 per roofing square (100 square feet). Financing is available through Service Finance Company and Hearth for approved credit. Between inspections, our article on warning signs of roof damage covers what to watch for.

Roof repair from Stallion Ridge Exteriors

Stallion Ridge Exteriors is based in Bethel, Connecticut, and has served all of Connecticut plus Westchester, Putnam and Dutchess Counties, New York, since 2022. We repair leaks and put on emergency tarps across asphalt shingle, standing-seam metal, flat EPDM and TPO, slate and cedar shake roofs, and we also handle skylights, chimney flashing, gutters, roof cleaning and commercial roofing.

Brands we install include GAF, Owens Corning, CertainTeed, Atlas, IKO, TAMKO, Malarkey and DaVinci, and our work covers architectural shingles, standing-seam metal and EPDM flat roofs. Our 25-year workmanship warranty is separate from the manufacturers’ warranties on materials.

Design wind speed, snow load and building department details for each town are on our roofing pages:

Common questions about roof repair in Connecticut

Sources: 2022 Connecticut State Building Code (Department of Administrative Services), amendments to the 2021 IRC including R105.2, R905.1.1, Table R301.2 and Appendix AY; 2021 International Residential Code, Sections R903, R905 and R908 (International Code Council); code adoption status from the Department of Administrative Services, checked September 17, 2026; U.S. Department of Energy Building America Solution Center; Connecticut Insurance Department Post-Disaster Claims Guide; Ready.gov. Stallion Ridge Exteriors is a service-area business based in Bethel, Connecticut.