Asphalt rolled roofing with elastomer

SECTION 2: Hazards identification

OSHA Emergency Overview

Prevention

Avoid breathing dust, fume, gas, mist, vapours and/or spray. Storage/Disposal Dispose of content and/or container in accordance with local, regional, national, and/or international regulations. Under normal conditions of use the products listed in this MSDS are not expected to pose a physical hazard or health risk to humans. These products do not contain any form of asbestos materials. The component exposure limits and other information in this document are provided for circumstances such as heating (above 250°F), burning, cutting, sanding and/or grinding when there is potential for exposure to these components. Physical Form ▪ Solid Color ▪ Black Odor ▪ Mild petroleum odor. OSHA ▪ None WHMIS ▪ None GHS ▪ None

Principle Routes of Exposure

Inhalation, Skin, Eye

Medical Conditions Generally Aggravated by Exposure

Pre­existing lung conditions which may be aggravated if fumes/dusts are inhaled,

Potential health effects

Inhalation Acute (Immediate) ▪ Temporary irritation of nose and throat may occur. Chronic (Delayed) ▪ This product contains crystalline silica which is listed by IARC as a suspect carcinogen. Silicosis (pulmonary fibrosis or severe lung scarring) may occur if exposed to high levels or repeated encounters with dust. Exposure to airborne particles that exceed the limits listed may cause lung cancer. This product also contains petroleum asphalt. If heated, there is limited evidence that derivatives of asphalt fumes may cause carcinogenic effects in animals. There is inadequate evidence to support that asphalt fumes alone are carcinogenic to humans. This product contains fiber glass fibers which are bound in the final product. Under normal conditions of use and in most emergency situations, there is little chance of release. Skin Acute (Immediate) ▪ Mechanical irritation of the skin/skin abrasion may occur characterized by itching or redness. Chronic (Delayed) ▪ Drying of skin and dermatitis may occur following prolonged exposures. Eye Acute (Immediate) ▪ Mechanical irritation of the eye may occur characterized by itching or redness. Chronic (Delayed) ▪ No data available. Ingestion Acute (Immediate) ▪ Ingestion of this product unlikely. Chronic (Delayed) ▪ No data available. Carcinogenic Effects ▪ When used under normal conditions, this product is not considered a carcinogen. This product contains petroleum asphalt. Asphalt fumes arise from hot asphalt. Asphalt fumes (CAS # 8052­42­4) In 1985/87, IARC (International Agency for Research on Cancer) concluded the following (a) Bitumens are not classifiable as to their carcinogenicity to humans (Group 3). (b) Extracts of steam ­ and air­refined bitumens are possibly carcinogenic to humans (Group 2B). IARC found that evidence for carcinogenicity from animal studies was: inadequate for undiluted air ­refined bitumens; limited for steam­refined and cracking residue bitumens; sufficient for extracts of steam­refined and air­refined bitumen. IARC found that human evidence for carcinogenicity of asphalt fumes was inadequate. Studies of roofers indicated an excess of cancers; however, IARC concluded that, since roofers may be exposed also to coal­tar pitches and other materials, "the excess cancer risk cannot be attributed specifically to bitumens." In 1994, a published review of 20 epidemiology studies of asphalt workers and roofers agreed with IARC, that current human evidence is inadequate for the carcinogenicity of asphalt fumes in humans. Trace amounts of polynuclear aromatic hydrocarbons (PAHs) may be present in some asphalts and can be released upon excessive heating, which results in thermal cracking of the asphalt compounds. Some of these PAHs have been identified as having the potential to induce carcinogenic and reproductive health effects. This product contains crystalline silica. IARC Monographs on Evaluation of Carcinogenic Risk of Chemicals to Humans (Monograph 68, 1997) concludes that there is sufficient evidence for the carcinogenicity of crystalline silica to humans, IARC (Group I). Crystalline Silica is classified as a Known Carcinogen according to the NTP. This product contains glass wool insulation fibers. Following a thorough review of all the medical ­scientific data available at a meeting in October 2001, the IARC panel lowered the classification for glass wool insulation fibers from a Group 2B classification ("possibly carcinogenic to humans") to a Group 3 classification ("not classifiable as to carcinogenicity to humans"). According to IARC, there is "no evidence of increased risks of lung cancer or of mesothelioma from occupational exposures during manufacturing of these materials, and inadequate evidence overall of any cancer risk." Carcinogenic Effects CAS IARC NTP Glass, oxide, chemicals NDA Group 3-Not Classifiable Reasonably Anticipated to be Human Carcinogen as Glass wool fiber Group 2B-Possible Carcinogen Asphalt 8052-42-4 Not established Group 3-Not Classifiable Quartz (SiO2) 14808-60-7 Group 1-Carcinogenic Known Human Carcinogen See Section 12 for Ecological Information.