Ridge vent repair
Re-fixing or replacing lifted sections of ridge vent and re-sealing the shingles along the line.
Repairing ridge vents, exhaust caps and vent collars in Hillsboro and the towns around it, so the attic stays dry and the vents keep working.
Fastest: call (833) 751-2102. Or send this and we call you back.
Vents carry moist air out of the roof space. A roofer checks the ridge vent, the exhaust caps and the vent collars, re-fixes or replaces what wind has lifted or bent, and checks the decking from the attic for the damp that a failed vent leaves behind.
A roof vent is easy to forget because it works quietly. Air enters low and leaves at the ridge or through the high caps, and it carries away the moisture from the house. When a ridge section lifts or a cap is bent, the airflow stops, and the decking begins to hold damp.
Windstorms are the usual cause. The FACTS sheet records the 2020 and 2021 windstorms that brought trees and power lines down across the Northwest, and the same wind lifts ridge sections and bends caps. The damage is small, and it is easy to miss from the ground.
This page covers the common vent repairs and what a roofer checks in the attic and on the roof. The FACTS sheet gives no local humidity figure, so the page does not claim how much ventilation a roof needs here; the roofer confirms the layout on the roof itself.
Do not climb a roof to check a ridge vent in wind or wet weather. Look from the ground and the attic, and let the roofer do the ridge work with fall protection.
The soffits and low vents are checked for blockage, and the ridge and any high caps are checked for lift and damage from the ground and the roof edge.
The underside of the decking is checked for dark marks and wet spots, which show where the airflow has failed.
Moss, leaves, insulation or paint blocking a vent is cleared so the air can move.
Lifted ridge sections are re-fixed or replaced, bent caps are replaced and the fixings are checked for corrosion. The ridge shingles along the line are re-sealed.
The record shows each vent by position, its state, what was repaired and the decking check from the attic.
Moving air carries moisture away from the decking, so the sheathing dries and the covering is not pushed up from underneath.
Moisture from the house rises into the attic and condenses on cold surfaces such as the underside of the decking. Air entering at the soffits and leaving at the ridge carries that moisture out. When the airflow stops, the decking stays damp and softens over time.
A roofer checks the balance between intake and exhaust. An exhaust vent with no intake draws little air, and an intake with no exhaust has nowhere to send it.
It lifts the sections, tears the mesh and loosens the fixings, and the shingles along the line can lift with it.
A ridge vent is a strip of opening covered by a cap that lets air out and keeps out rain and debris. Wind can lift the cap, tear the mesh and loosen the nails that hold the section, and the shingles beside it are then exposed at their upper edges.
The repair re-fixes or replaces the lifted sections, resets the shingles along the line and checks that the mesh is clear.
Usually not on its own. It is normally part of the roof scope, and the building office for the address confirms the position if the work changes the structure.
A vent repair within a roof repair is normally included in the same scope. Where the work changes the roof structure, the roofer confirms with the building office whether a permit applies. The FACTS sheet does not name the city's building division, so the roofer confirms the office for the address.
Put the answer in the quote and keep it with the roof file.
Daylight at the ridge line, a damp smell after rain, dark marks at the top of the decking and any insulation that has blown into the soffit.
The attic is the quickest place to see whether a vent is working. From the hatch, look along the ridge line for daylight, which means the ridge vent or its mesh has opened. Smell the air after a wet spell: a musty note means moisture is not leaving. Check the decking near the ridge for dark marks, and check the soffit for insulation that has been pushed into the vent path.
Write each check down with the date. A vent that is working in one season and not in the next is the change the roofer needs to see, and a dated note makes that change easy to read.
The new ridge and intake vents are sized and placed to match the roof's length and pitch, and the layout is written into the scope.
When the covering is renewed, the vent layout can be reviewed. The roofer sets the ridge and intake openings to match the length and pitch of the roof, and records the layout in the scope so the balance of air is clear to the next roofer.
A layout that is written down is easier to check after a storm, because the roofer knows what the vents were meant to do.
Re-fixing or replacing lifted sections of ridge vent and re-sealing the shingles along the line.
Clearing blocked intake vents so the air can reach the ridge.
Replacing bent or cracked caps and re-sealing the flashing they pass through.
The FACTS sheet records the 2020 and 2021 windstorms as outage events. A vent or ridge repair after a windstorm is recorded as a roof finding, not as an outage figure.
Attics in the Portland-side towns are ventilated and repaired by the same method, and the travel is shown on the quote.
Vents in the Coast Range foothills sit under tree cover, and the roofer checks the vents for moss and needles as well as wind damage.
Tell us what's happening and we'll tell you honestly whether it's a quick fix, and what roof vent and ridge repair should cost.
Not sure if you're covered? Check your ZIP code.
Replacing damaged roof sheathing in Hillsboro and the towns around it, sheet by sheet, so the new covering sits on a sound deck.
Repairing asphalt shingles in Hillsboro and the towns around it: lifted tabs, cracked shingles and edges that moss has loosened.
Restoring gutters, downspouts and outlets in Hillsboro and nearby towns, cleared of moss and leaves so roof water is carried clear of the walls.
Most attics do, to move moisture away from the decking. The roofer checks the vents and says what they are doing.
From the ground and within reach, if safe. Do not reach onto the roof, and do not disturb insulation without a dust mask.
Usually moisture that has condensed on the decking because the airflow is poor. The roofer checks intake and exhaust.
Not usually. A leak comes from the covering or the flashing, and the roofer checks those too.