Planning a roof replacement during the winter
One common issue with replacing roofs in the winter is ice. While repairs can be difficult, often times replacing a roof during a winter vacation can be ideal. Often times general contractors prefer to have the house unoccupied during a roof replacement.
Over time seals and flashing can deteriorate, providing an opportunity for water to penetrate your roof. Modern air vents are less prone to leaks than older versions, but even the best skylight can leak if it isn't installed with care and serviced properly. air vents often leak because their flashing is damaged, corroded, or improperly installed.
Often, those "leaks" are the result of other less obvious problems. One example, water could get through the roofing up-slope of a skylight and then leak out around the skylight's framing.
The first step in any air vents repair is to identify the source of the leak with a thorough inspection. You’ll want to make sure the leak is not just excessive condensation that has moved along the underside of the glass and dripped down the side of the interior. This occurs more often in very cold climates, in single-glazed skylights, and in damp locations like bathrooms, kitchens, and greenhouses.
If your air vents opens, check that it is fully closed, and that weather seals are in good condition. In addition, think about whether the leak occurs only in winter, in fall, or when there is snow or ice on the roof. If so, then look behind the skylight for leaves, ice, snow or other debris that might be blocking the downhill flow of water and causing it to back up under the roof shingles.
You’ll also want to look carefully at your roofing, paying particular attention to vent flashing or other roof penetrations. A leak in these locations can travel quite a distance before finding its way to an indoor opening at the air vents. For roof and air vents inspections, hire a contractor skilled in roofing repairs.