Example Asbestos Removal Projects in Tigard

Scope of work

A survey of the outside materials the balcony and door work will disturb, about 20 samples, lab results for each layer and a written report. Removing the positive caulk is priced separately.

Project overview

In this example, the owner of a 24-unit building from the 1970s in Durham plans to rebuild every balcony and put in new sliding doors. The carpenters will cut siding, soffits and old caulk where each balcony meets the wall, and a building of five or more units is surveyed before renovation whatever its age.

Only the caulk around the sliding door frames tests positive. It is removed door by door ahead of the carpenters, and the rest of the balcony work goes ahead as ordinary construction.

The goal

The goal is a balcony project with one known positive material, cleared before the carpenters cut anything.

Process

1. Planning The carpenters mark where each balcony and door will be cut.
2. Sampling days About 20 samples taken from a handful of typical balconies.
3. About a week later Lab results and a report locating the positive caulk.
4. Then The caulk comes out door by door, ahead of the balcony crew.

Planning right

• Survey the outside of a building before rebuilding balconies, not only the inside.
• Tell tenants when someone will be on their balcony.
• A slider replaced years later is sampled separately.
• Post the report where the carpenters and the caulk crew can read it.

Scope of work

Samples of the texture, the friable notice to DEQ, the living room sealed under negative pressure, the beams wrapped in plastic, the texture wetted and scraped bay by bay into double bags, the beam edges cleaned by hand, a HEPA clean and the haul. The new ceiling finish and refinishing the beams are extra.

Project overview

In this example, the owners of a 1960s house in King City want to keep the exposed beams across the living room and smooth the textured ceiling between them. The texture runs into every corner where a beam meets the ceiling.

The texture tests positive. The crew wraps the beams, scrapes each bay wet and cleans the beam edges by hand, which takes longer than an open ceiling, and the beams come out ready for refinishing.

The goal

The goal is bare ceiling bays between clean beams, ready for a smooth finish.

Process

1. First visit Texture sampled in three bays; the bays and the beams measured.
2. Before work Notice filed; the living room emptied and the beams wrapped.
3. Day one Room sealed, the first bays soaked and scraped.
4. Day two The other bays scraped, beam edges cleaned, final clean and bags hauled.

Planning right

• Beamed ceilings take longer than open ones, so they cost more for the same area.
• Do not sand the beams while texture is still in the bays.
• Ask the finisher what surface the bays should be left in.
• Texture in the hall is sampled on its own if that ceiling is next.

Scope of work

Every layer in both rooms tested, then two DEQ notices: nonfriable for the kitchen tile, friable for the half bath vinyl. Plastic goes up in the kitchen and a negative pressure enclosure in the half bath, the tile comes up whole and the vinyl comes up wet with its backing, and the bags leave after a HEPA clean. The new floor is extra.

Project overview

In this example, the owners of a 1970s house in Tigard want one new floor through the kitchen and the half bath beside it. The kitchen has 9-inch tile, and the half bath has sheet vinyl with a felt backing.

Both test positive, under two different rules. Whole tile is nonfriable and needs five days' notice, while an asbestos sheet vinyl backing is friable and needs ten, so both notices go in together and the crew does both rooms in one visit.

The goal

The goal is two bare floors finished in one visit, so the installer can lay one floor through both rooms.

Process

1. First visit Every layer in both rooms sampled; the floors measured.
2. Before work Both notices filed on the same day, and the ten-day wait sets the start.
3. Day one Kitchen sealed, tile lifted whole and wet, the floor vacuumed and wiped.
4. Day two Half bath sealed under negative pressure, vinyl lifted wet, final clean and bags hauled.

Planning right

• Filing both notices together keeps the two rooms on one schedule.
• Each layer gets its own result, so a clear adhesive says nothing about the tile above it.
• Keep the toilet out until the half bath floor is done.
• Ask the installer whether the floor deck needs work before ordering the new floor.

Scope of work

A lab test of the shingles, DEQ's nonfriable notice and plastic on the ground below. The crew mists the shingles around the meter and along the new line routes, pries them off in whole pieces and wraps them, then vacuums the wall and the soil before the load goes to a permitted landfill. Electrical work, the heat pump and new siding are extra.

Project overview

In this example, the owners of a 1960s house in Tigard add a heat pump and a car charger, which means a larger electrical service. The electrician has to move the meter base and run new lines across the side wall, through gray cement shingles.

The shingles test positive. Instead of cutting holes through them, the crew takes them off whole across the part of the wall the electrician and the heat pump installer need, and new siding goes on that wall afterward.

The goal

The goal is a bare section of wall for the new service and the heat pump, with every shingle off whole and none cut.

Process

1. First visit Shingles and paper sampled; the electrician's layout marked on the wall.
2. Before work Notice filed; sheeting laid along the side of the house.
3. Work day Shingles wetted, pried off whole and wrapped, the wall and the ground vacuumed.
4. Then The electrician sets the new meter base, and the heat pump goes on its pad.

Planning right

• Get the electrician's layout first, so only the needed part of the wall comes off.
• No one should cut a hole through cement shingles before a lab has seen them.
• Plan the new siding for that wall before removal, so it is not open for long.
• If the roof is next, it is tested and priced on its own visit.

Scope of work

Samples of the tape and the wrap, the friable notice to DEQ, the crawl space sealed at the hatch under negative pressure, the tape wetted and removed from the seams and boots, the bare metal wiped, labeled double bags, a HEPA vacuum of the ground below the ducts and the haul. Resealing the ducts and the liner are extra.

Project overview

In this example, the owners of a 1970s house in Tigard hire a crew to lay a sealed liner over the crawl space floor. That crew will crawl under every duct to fasten the liner up the walls, and the old paper tape on the duct seams is already brittle.

The tape on the seams and at the register boots tests positive, and the wrap on the main trunk is clear. The tape comes off before the liner goes in, and the heating contractor reseals the bare seams.

The goal

The goal is a crawl space with no old tape left on the ducts, so the liner crew can work under them.

Process

1. First visit Tape and wrap sampled; the seams and boots counted and the crawl space checked.
2. Before work Notice filed; the heating system shut off for the work days.
3. Two work days Hatch sealed under negative pressure, tape wetted and removed, seams wiped, the ground below vacuumed.
4. Then The ducts are resealed, and the liner crew starts.

Planning right

• Brittle duct tape flakes when someone brushes past it, so remove it before other crews crawl in.
• Keep the heating off until the seams are resealed.
• Flakes on the crawl space ground are vacuumed, not raked.
• Ask the liner crew to wait for the final clean.

Scope of work

Ceiling texture of about 1,100 sq ft, about 180 sq ft of sheet vinyl and the duct tape under the floor, all taken out ahead of the wrecking crew. The friable notice, labeled bags, an air check and the landfill trip are included; the survey, the demolition and any foundation work are not.

Project overview

In this example, the owners of a 1970s house in Tigard decide to build a new house on the old foundation instead of remodeling. Everything above the foundation comes down, and because the house is being demolished, the owner exemption no longer applies and the whole house is surveyed.

The ceilings, the sheet vinyl and the duct tape test positive, and the foundation is clear. The crew clears the rooms one at a time and the crawl space last, so the demolition crew can take the house down to a foundation that is ready to build on.

The goal

The goal is a house cleared of asbestos down to a clean foundation, ready for demolition and the new build.

Process

1. Week one Rooms and crawl space surveyed; the report sizes up each positive find.
2. Next The notice goes to DEQ, and the ten-day wait runs.
3. Removal days Rooms sealed one at a time for the ceilings and the vinyl, then the crawl space for the duct tape.
4. Last day Air check, the last bags hauled, and the paperwork handed over.

Planning right

• Ask the Building Division what the demolition permit needs for your address.
• A kept foundation is still sampled, since the new house will sit on it.
• Clear the crawl space last, after the rooms above it are done.
• Leave a copy of the survey with the demolition crew.