Old pipe insulation out before finishing a basement
Example project

- Home
- 1910s two-story house in Tacoma with a stone and brick foundation and a newer boiler
- Original request
- Finish part of the basement as a family room
- Testing
- Lab test of the old pipe covering on the runs away from the boiler found asbestos
- Work
- About 120 ft of old covering removed; the pipes then get new insulation jackets
- Timeline
- Three days of removal and an air check, after the notice
- Estimated cost
- $3,900
Scope of work
A sample of the pipe covering, a notice to the clean air agency, the basement sealed in sections behind a zipper door under negative air, the covering wetted and cut off, fittings done in glove bags, sealed and labeled bags, an air check and disposal at the city landfill. New pipe insulation and the basement finish are extra.
Project overview
In this example, the owners of a 1910s house in Tacoma replaced their boiler years ago, but the heating pipes running across the rest of the basement still have their old white covering. They now want to finish part of the basement, and the covering tests positive.
About 120 ft of pipe covering comes off, one section at a time behind a zipper door with filtered air pulling from the work area. The bare pipes then get new insulation jackets, and the builder starts in a clean basement.
The goal
The goal is a basement with every old pipe covering gone and the pipes re-insulated, ready to be finished.
Process
- First visit Sample of the pipe covering; the runs measured and the fittings counted.
- Before work Notice filed with the clean air agency.
- Days one to three Section by section, covering wetted and removed, fittings in glove bags, bags sealed.
- Last day Air check, then the pipes get new insulation jackets.
Planning right
- Pipe covering is friable, so even a short run over 10 ft needs a notice.
- Waste from a Tacoma address can go to the city landfill; from other towns it goes elsewhere.
- Tell the builder which walls hide pipes, so new framing does not trap old covering.
- Keep the air check result with the permit for the basement finish.
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