4EP 1110-1-30
31 Aug 01
Table B-3
Asbestos-Containing Materials Found in Buildings
Subdivision
Generic Name
Asbestos(%)
Dates of Use*
Binder/Sizing
Preformed Thermal
Batts, Blocks, and
Insulating Products
Pipe Covering
85% Magnesia
15
1926- 1949
Magnesium Carbonate
Calcium Silicate
6-8
1949- 1971
Calcium Silicate
Textiles
Cloth Blankets
100
1910-Present
None
(Fire)
Surfacing Material
Sprayed- or
1-95
1935- 1970
Sodium Silicate,
Troweled-On
Portland Cement,
Organic Binders
Felts:
90-95
1920-Present
Cotton/Wool
Blue Stripe
80
1920-Present
Cotton
Red Stripe
90
1920-Present
Cotton
Green Stripe
95
1920-Present
Cotton
Sheets
50-95
1920-Present
Cotton/Wool
Cord/Rope/Yarn
80-100
1920-Present
Cotton/Wool
Tubing
80-85
1920-Present
Cotton/Wool
Tape/Strip
90
1920-Present
Cotton/Wool
Curtains (Theater,
60-65
1945-Present
Cotton
Welding)
Cementitious
Extrusion Panels
8
1965- 1977
Portland Cement
Concrete-Like
Corrugated
20-45
1930-Present
Portland Cement
Products
Flat
40-50
1930-Present
Portland Cement
Flexible
30-50
1930-Present
Portland Cement
Flexible
30-50
1930-Present
Portland Cement
Perforated
Laminated (Outer
35-50
1930-Present
Portland Cement
Surface)
Roof Tiles
20-30
1930-Present
Portland Cement
Clapboard and
20-50
1930-Present
1930-Present
Shingles
Clapboard
12-15
1944- 1945
Portland Cement
Siding Shingles
12-14
Unknown-
Portland Cement
Present
Roofing Shingles
20-32
Unknown-
Portland Cement
Present
Pipe
12-15
1935-Present
Portland Cement
Roofing Felts
Smooth Surface
10-15
1910-Present
Asphalt
Mineral Surface
10-15
1910-Present
Asphalt
Shingles
1
1971- 1974
Asphalt
B-4
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