Pipe renovation, or line renovation, is one of the biggest renovations that can be done in a housing association or a single-family house. In older buildings, pipe insulation almost always contains asbestos, which is why an asbestos survey is necessary before pipe renovation.
Where is asbestos found in pipelines?
Pipe insulation
Heat and water pipe insulation are the most common source of asbestos in pipe repair. In particular, asbestos-containing insulating mass and casings were used in pipelines installed before the 1970s. Insulators often contain both chrysotile and amosite.
Sewer pipe connections
In old cast iron sewers, asbestos-containing sealing strip or compound may have been used as seals for the joints.
Materials around pipes
In addition to pipe insulation, sealing compounds for pipe penetrations, fire stops and materials for pipe casings can also contain asbestos.
Why is the survey especially important in pipe repair?
- The asbestos content of pipe insulation is often high - up to 30-90% of the weight of the material can be asbestos
- removal work produces a lot of dust - removal of insulation releases large amounts of asbestos fibers
- The work affects several apartments - pipelines run through the entire building
- The exposure risk for employees is high - without a survey and protection, exposure is likely
Asbestos survey of pipe repair in practice
- Survey before planning - an asbestos survey is carried out, which covers pipelines, insulation and materials around the pipes
- Using the report in planning - the designer takes the asbestos findings into account in the scope and schedule of the contract
- Asbestos removal before the actual pipe renovation - an authorized removal company removes asbestos-containing insulation and materials
- Cleanliness check - after removal, it is ensured that the asbestos fibers have been removed
- Actual pipe repair - can be started safely
Cost impact
Asbestos removal increases the total cost of pipe repair, but it is legal requirement and important for health and safety. Asbestos removal is typically about 5-15% of the total cost of pipe repair.
Asbestos surveying is a small cost compared to the total price of pipe repair. Surveys start at 119€ + VAT and ensure that the renovation proceeds safely and in accordance with the law.
Memo list of the board of the housing company
- Order an asbestos survey during the project planning phase
- Include asbestos removal in the cost estimate of the project
- Make sure the contractor uses an authorized removal company
- Keep the survey report in the building association's archive