Roof Ventilation Installation in Madison, WI

Most repair calls start with a stain on a ceiling. We trace the water back to its source, which is rarely where it shows up: a cracked pipe boot, lifted shingles at a valley, rusted step flashing along a chimney or wall. We replace the failed piece with matching materials, seal the fasteners, and check the ridge and soffit vents while we are up there, since poor airflow shortens the life of everything around it.

An inspection covers the full system, not just the shingles. We walk the surface for granule loss, cupping and nail pops, then go into the attic to look at the underside: dark sheathing, damp insulation, daylight at the eaves, blocked baffles. Roof vent installation often comes out of this step. A house built around 1979 was rarely vented to today's standards, and the attic tells us what it needs before the deck does.

Replacement means tearing off to bare sheathing and rebuilding every layer. We swap rotted decking, run ice and water shield at the eaves and valleys, lay synthetic underlayment, and install new drip edge and flashing rather than reusing old metal. Ventilation gets sized to the attic, with a continuous ridge vent balanced by open soffits. Architectural shingles or standing seam metal, depending on the roof and what the homeowner wants from it.

New installations on additions, garages and commercial buildings follow the same rules as a full replacement, on a clean deck. Low-slope sections get a membrane system with properly terminated edges, because shingles will not hold water back at a shallow pitch. On steeper residential roofs we set starter courses, stagger the field, and fasten to the manufacturer's nailing line. Intake and exhaust vents go in during the install, not after, on every job from Madison to Middleton.

Every job starts on the roof and in the attic. We walk the field, count existing vents, and check the soffit for blocked or painted-over intake. Inside, we look for frost-stained sheathing, rusted nail tips, compressed insulation, and bath fans dumping into the attic instead of outside. Madison's median home was built in 1979, and roofs from that era often carry too little intake for the exhaust on top. That imbalance is what we measure first.

The estimate lists exactly what we found and what we plan to do about it: net free area needed, vent type (ridge, box, or turbine), soffit intake to add, baffles, and any deck or flashing repair. Materials are named by brand and gauge, not "vents as needed." Call for a free estimate. You read it, ask questions, and decide. Nothing on the roof moves until the scope on paper matches the scope you want.

Old static vents, worn ridge cap, and failed boot flashing come off first. We cut back shingles around each vent location, pull the fasteners, and clear sealant and debris from the deck. Any bath or kitchen duct ending in the attic is disconnected so it can be routed to a proper exterior hood. Removed material goes straight into the trailer. The point is a clean, bare opening for each vent, not a patch on top of a patch.

Vent openings often sit over the worst sheathing on the roof, because that is where trapped water has been condensing. We probe the deck around every cutout. Soft, delaminated, or dark-stained plywood gets cut back to solid wood and replaced with matching-thickness sheathing, usually 1/2" or 5/8" CDX, fastened to the rafters. Ridge cuts get checked for a straight, consistent slot. New vents on a rotten deck fail early, so this step is not skipped.

Around each vent and along the ridge we lay new underlayment tight to the deck. Ice and water shield goes down at every cutout so the opening has a sealed membrane under the flashing, and synthetic underlayment ties into the existing field where shingles were lifted. Overlaps run with the water, never against it. This layer is the second line of protection when wind drives rain sideways into a vent, and it is the layer nobody sees.

Ridge vent goes on in full lengths, nailed through the shingle line into the deck with the manufacturer's ring-shank fasteners, then capped. Box vents get set in a bed of sealant with flashing worked under the upslope shingles and over the downslope course. Soffit intake gets cut and screened, and baffles hold a clear channel from soffit to attic. Shingles are woven back with matching color and exposure so the roof vent installation reads as part of the roof.

Once installed, we go back into the attic in daylight and look up. Light through every vent and baffle means the airflow path is open. Outside, we check every fastener head is sealed, flashing laps are shingle-style, cap shingles are flat, and the ridge line runs straight. We walk the finished work with you and point out what changed and why. Anything that does not meet the estimate gets fixed before the trailer leaves.

Magnets sweep the lawn, driveway, and beds for nails. Gutters get cleared of shingle grit and cut-off debris. Cut plywood, packaging, and old vents leave with us. Inside, we close up the attic access and check that no insulation was dragged onto the floor below. Your property should look the way it did the morning we arrived, with the only difference being a roof that finally breathes.