Why does my ceiling leak when it is not raining?
In winter the most likely cause is an ice dam, where attic heat melts snow on the warm part of the deck and the meltwater refreezes at the cold eave. The water then backs up under the shingles and finds a way inside.
A thaw after a snowfall is a common trigger, and the leak can appear hours after the snow starts to melt. The ice dam guide explains the mechanism, and the house side of the fix is in the attic, not on the roof.
Other causes without rain include meltwater that runs off a snowy upper slope into a valley or a skylight curb, and frost that forms on the underside of the sheathing and melts into the insulation.
What moves the price of a leak repair here?
Access, height, the number of entry points, the condition of the decking and the flashing at the source decide the work. No price figure is published on this site, and the price is explained and approved before work starts.
A single failed piece of counter-flashing at a chimney is a short job. A leak that has soaked the decking, or a valley that has been leaking for several seasons, takes more time because the damage has to be cut back to sound wood before the repair can go in.
A multi-family building adds staging and the coordination of more than one owner. In Enfield, Suffield, West Suffield and Somers, the Connecticut registration and that town's building department set the requirements for the work.
Do I need a permit for a leak repair?
Many leak repairs are small and do not need a permit, but the building official decides for each address. The state's work table treats minor roof repair as needing a permit depending on its size.
Springfield's Building Division issues permits for alterations and repairs, and the official's view decides whether a particular repair is ordinary. Where the work involves structural sheathing or rafters, a permit is more likely, and the roof-covering specialty license does not cover structural work.
Ask the Building Division before any work that opens the structure. Building permits must be obtained before construction begins, and an unpermitted repair can be harder to sell or refinance later.
What if the water is coming through a wall or window?
Not every wet wall is a roof leak. Siding, window flashing and masonry can all carry water, and the source has to be found before the roof is blamed.
A technician who looks at a wet wall will check the roof edge above it, the gutter and the flashing where the wall meets the roof. If the water traces to a window or siding, the technician should say so and suggest the right trade for that part.
A clear written answer about the source is worth more than a repair that covers the wrong place.
What should I photograph before the repair?
Photographs of the stain, the area above it and any damaged materials give the record that insurers, technicians and the building official may all need.
Take a photograph of each stain and a second of the ceiling in good light, with a reference object in frame. Save any wet insulation or damaged board that is removed, and note the date and the weather when the leak was seen. This record helps the technician find the source and helps any later claim discussion.
Do not remove the stain or repaint the ceiling until the photographs are taken and the source has been found.