Salem structural drying

Drying depends on the air being drier than the wet material. From October to April, Salem's outdoor air is often cool and close to saturated. Opening windows brings that moisture in, so contractors close off the drying area and let dehumidifiers pull the water air movers lift from wet surfaces. Keeping the house at a normal temperature helps, because warm air carries more moisture to the dehumidifier.

Summer is a different story. Salem's July and August are dry, and a leak then usually dries faster. Most drying jobs, though, happen in the wet months.

Our main structural drying page explains the science and equipment.

Water from a main-floor leak runs through the subfloor and drips onto the crawlspace vapor barrier. If only the room is dried, the underside of the subfloor and the joists stay wet. Salem contractors commonly remove wet batts, set air movers along the joist bays and run a desiccant dehumidifier under the house. Readings on both faces of the subfloor confirm when it is done.

Expect the crawlspace to finish last, especially in January.

Neighbourhoods near downtown and the Capitol include homes with plaster and lath walls and original wood floors. Plaster dries slowly and can lose its bond to the lath if it stays wet. Old floors are often worth drying in place. Before walls are opened, ask about lead paint and asbestos. See our Salem area page.

Ask for the drying log at the end: daily readings and equipment notes answer most insurance questions. Check the contractor's license with the Construction Contractors Board, headquartered in Salem.

A wet Salem house in January is cool, the outdoor air is damp and the crawlspace beneath it may be close to the outdoor temperature. Each of those slows evaporation. Contractors compensate with correctly sized dehumidifiers, closed drying areas, desiccant units in cold spaces and a normal indoor temperature. Even so, winter jobs often run a day or two longer than the same leak in August.

The calendar is never the measure of done. Readings are.

Newer subdivisions in South Salem, West Salem and toward Woodburn mostly use drywall, engineered flooring and crawlspaces, which dry predictably once water is out. Manufactured homes need attention to the belly wrap and underfloor insulation, which hold water if not opened up. Laminate and many engineered floors swell at the edges and usually do not recover, so they are often removed to dry the subfloor.

Daily readings, photos of equipment placement and a list of removed materials answer most insurance questions. The Oregon Division of Financial Regulation takes questions if a claim stalls.

Ask how the contractor will set the dry standard, how often they will take readings and whether they will dry the crawlspace as well as the rooms. A crew that answers plainly and shares its log at the end is usually one that documents its work. Check the license with the Construction Contractors Board before equipment arrives.

When every reading matches the dry standard, equipment comes out and repairs can begin: insulation back under the floor, drywall patched, baseboards reinstalled, flooring replaced. Watch the area for a few weeks for any musty smell or new staining.

Solid wood floors that got wet can sometimes be dried in place with mats that pull air through the boards, though it is slow and depends on how much the wood has cupped. Laminate and many engineered floors swell at the edges and usually do not recover, so they are often removed to let the subfloor dry. Vinyl plank is waterproof itself, but water trapped beneath it still has to come out.

A musty smell that returns, paint bubbling low on walls, cupping floors or new stains after equipment leaves all mean something is still wet. Call the contractor back for readings rather than waiting for it to clear.