When was the last time asbestos was used in homes?

placerair.org - Asbestos in Building Materials | Placer County, CA

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Asbestos was used extensively in home construction from the early 1940s through the 1970s as highly-effective and inexpensive fire-retardant material and thermal and acoustic insulator. It is now known that prolonged exposure to asbestos fibers can lead to lung disease. In homes built prior to 1975, asbestos is most commonly found as thermal insulation on basement boilers and pipes. Unfortunately, it can also be found in a myriad of other household materials including:

Blown-in attic insulation

Corrugated heavy duty 8 by 4 foot panels

Fiber cement siding (usually 1/8 inches thick and 8 by 4 foot brittle)

Glue that attaches floor tiles to concrete or wood

Heating, Ventilation, and Air Conditioning ( HVAC ) duct insulation (usually found in corrugated or flat paper form)

) duct insulation (usually found in corrugated or flat paper form) Plaster

Roofing material (usually on flat roofs but occasionally on asbestos shingles sometimes called transite)

Siding material

Some forms of linoleum

Some forms of paint

Vinyl floor tiles

Window caulking and glazing

Asbestos Conditions

The mere presence of asbestos in your home is not hazardous. Generally, material in good condition will not release asbestos fibers and disturbing it may create a health hazard where none existed before. The best thing to do with asbestos material in good condition is to leave it alone. The danger comes from asbestos material that has been damaged over time. Asbestos that crumbles easily if handled, or that has been sawed, scraped, or sanded into a powder is likely to release asbestos fibers and create a health hazard.

Delegation

The U.S. Environmental Protection Agency ( EPA ) has either delegated the Asbestos National Emissions Standards for Hazardous Air Pollutants ( NESHAP ) (40 CFR , Part 61, Subpart M) program oversight to a local air district or the California Air Resources Board ( ARB ) on behalf of a local district. Placer County Air Pollution Control District is one of 19 air districts out of the 35 in California which does not have an asbestos program, making it non-delegated. View a map that shows delegated and non-delegated California Air Pollution Control Districts. In "non-delegated" districts, a demolition/renovation notification to the U.S. EPA and to the ARB is required for compliance with the Asbestos NESHAP . The ARB reviews and investigates the notifications. Since the Placer County Air Pollution Control District is NON-delegated, any questions regarding requirements for asbestos in construction materials should be made to the staff of the ARB or the staff of the U.S. EPA .

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Demolition & Renovation Activities

The demolition or renovation of a structure may disturb asbestos containing materials, which would require a survey or inspection with notification of the results to the U.S. EPA and ARB as per the NESHAP requirements. A permit for demolition or renovation must be obtained from your local building department. The demolition or renovations permit of a residential building which has four or fewer dwelling units and/or out-buildings usually may be issued without the applicant conducting an asbestos inspection or notification, if the applicant declares the project is exempt. For demolitions, the permitting agency must require the applicant to make the declaration in writing, or it may incorporate the applicant's response on the demolition permit application. (Reference Health and Safety Code Section 19827.5)

Forms & Applications

The District, in cooperation, with ARB staff, prepared an Asbestos NESHAP Declaration of Notification Compliance form (PDF) for the use of building departments’ staff, which asks questions to determine if a project is exempt from survey/inspection and/or notification requirements. This form has been provided to Placer County’s city, town and county building departments to use or modify as needed. The District’s Construction Asbestos Fact Sheet (PDF) explains when an asbestos inspection may be required, who must perform it, and notification requirements.

placerair.org - Asbestos in Building Materials | Placer County, CA

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