EnergyShield Pro Sheathing; EnergyShield Pro 2 Sheathing

SECTION 2: Hazards identification

OSHA EMERGENCY OVERVIEW: Health Fire Reactivity Degree of Hazard

HMIS® ratings

1 0 0 - Minimal (insignificant)

NFPA Ratings

1 0 1 – Slight 2 – Moderate 3 – Serious (high) 4 – Severe (extreme) 5 – Chronic Health Effort(s) No unusual conditions are expected from this product. Freshly expanded or heated foam may off-gas some pentane-blowing agent, which is heavier than air and may accumulate to ignitable concentrations if stored inside a sealed container or within confined areas. Ignitable atmospheres have concentrations that exceed inhalation exposure limits for workers, further reinforcing the need for ventilation when foam is freshly expanded. With the exception of the blowing agent, this product does not present an inhalation, ingestion, or contact health hazard unless subjected to operations such as sawing that result in the generation of airborne particulates (dusts). Exposure to high dust levels may irritate the skin, eyes, nose, throat, or upper respiratory tract. Inhalation of high amounts of dust over long periods may overload lung clearance mechanisms and make lungs more vulnerable to respiratory disease. [See Section 3 of this SDS for other exposure limit standards for product ingredients.] Canadian users: LD50 and LC50 data are listed below for the constituent(s) that are available. LC50 LD50 Hodge Hodge & & Sterner Sterner classes classes mg/(m3 air) mg/(kg body wgt) (inhalation) (oral) Pentane 364,000 (rat, inh, 4hr) 446 (mouse, i.v.) relatively harmless insufficient data

Potential health effects

Primary Means of Exposure: Inhalation of particulates Secondary Means of Exposure: Eye and skin contact with particulates and inhalation of vapors INHALATION HEALTH HAZARDS: For polyiso foams (generated dust and residual vapor) Acute: Dust may cause transient mechanical irritation of the upper respiratory tract. Workplace exposures to residual pentane vapors from this product are expected to be below levels of any health risk. Overexposure to high concentrations of pentane can cause narcotic effects. Signs and symptoms of overexposure to pentane include headache, nausea, dizziness, difficulty walking, or sleepiness. Studies have shown that short-term (10-minute) exposures to pentane concentrations as high as 5,000 ppm (11,750 mg/m3) produced no symptoms. Workplace exposure limits for pentane and foam dust are provided in table below. Chronic: There is no evidence that dusts generated from this product cause disease in humans. The facer material is not expected to generate dust. No chronic effects are known for exposures to pentane vapor. For chopped textile fiber glass in foam core (generated dust) - EnergyShield Pro 2 only Acute: Airborne fragments of glass fibers may cause temporary mechanical irritation of the upper respiratory tract, particularly mouth, nose and throat; glass dust may cause transient irritation of the upper respiratory tract. Workplace exposure limits are provided in table below. Chronic: No chronic health effects are known to be associated with exposure to glass fibers. Results from epidemiological studies have not shown any increase in respiratory disease or cancer. The International Agency for Research on Cancer has classified continuous filament fiberglass “Not Classifiable as to Carcinogenicity to Humans” (Group 3). EYE CONTACT HEALTH HAZARDS: Acute: Temporary mechanical irritation, redness, tearing, and blurred vision can occur if dusts generated from these products come into contact with eyes. Chronic: None known. SKIN CONTACT HEALTH HAZARDS: Acute: Direct contact with rough-cut foam can cause mechanical abrasion cuts or puncture to fingers, hands or exposed skin. Temporary skin irritation may be seen in certain individuals. Chronic: None known. INGESTION HEALTH HAZARDS: Acute: Unlikely. Contact physician if unusual reaction is noted. Chronic: None known. SIGNS AND SYMPTOMS OF EXPOSURE: Irritation of the upper respiratory tract, eyes, and/or skin.

Medical Conditions Generally Aggravated by Exposure

Any condition generally aggravated by mechanical irritants upon inhalation or on skin contact. Specific data are not available which address medical conditions that are generally recognized as being aggravated by exposure to this product. CARCINOGENICITY: Ingredient: Textile Fibrous Glass – EnergyShield Pro2 only NTP: Not Listed IARC: Not Classifiable – Group 3 – EnergyShield Pro2 only OSHA: Not Listed Mutagenicity: None

Teratogenic Effects

None Reproductive Toxicity: None California Proposition 65: Known to the State of California to Cause Cancer. This warning is provided in accordance with the California Safe Drinking Water and Toxic Enforcement Act of 1986.